RAIN BIRD - Campbell Sci · RAIN BIRD Weather Station - Model - PRO INSTALLATION MAINTENANCE AND TROUBLESHOOTING MANUAL November 2001 GT27145B

RAIN BIRD

Weather Station - Model - PRO

INSTALLATION MAINTENANCE AND TROUBLESHOOTING MANUAL

November 2001 GT27145B

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RAIN BIRD

Weather Station – Model – PROTable of Contents

Description Page

1.0 General . . . . . . . . 1

2.0 Tools & Supplies . . . . . . . 2Tools Required . . . . . . 2Supplies Required . . . . . . 2

3.0 Weather Station Site Selection . . . . . 3Temperature/Relative Humidity . . . . 4Solar Radiation . . . . . . 4Precipitation . . . . . . . 5Determining True North for Wind Vane Operation. 5Prompts from Geomag . . . . . 7

4.0 Weather Station Concrete Base . . . . . 9Supplied Components . . . . . 9Installer Supplied . . . . . . 9Tools Required . . . . . . 9Installation . . . . . . . 9

5.0 External Wiring to Weather Station . . . . 12Wiring Valve Access Box . . . . . 12Weather Station Power Wiring . . . . 12Weather Station Communication Wiring (JR-SH) . . 13Grounding Communication Cable . . . . 13Weather Station Communication Wiring (JR-PH) . . 15

6.0 Tower Assembly and Installation . . . . 15Supplied Components . . . . . 15Installation . . . . . . . 15

7.0 ET Instrumentation Enclosure Installation . . . 18General . . . . . . . 18Mounting ET Enclosure to the Tower . . . 18

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Table of Contents - Cont’d.

Description Page

Installation of Lightning Rod . . . . 19Power Supply Rechargeable Battery . . . . 19AC External Power Wiring . . . . . 21Power Supply Option Solar Panel . . . . 22

8.0 Installation of Instrumentation . . . . . 24General . . . . . . . 24Supplied Components . . . . . 24Installation of Cross-Arm to ET Enclosure . . . 24Installation of 034A Wind Sensor . . . . 26Installation of Relative Humidity/Temperature

Sensor and Radiation Shield . . . . 28Installation of Solar Radiation Pyranometer . . 29Sensor Cable Connections . . . . . 30Configure Sensor Switch Settings . . . . 31Upgrading a “JR” weather station to a “PRO” . . 31Sensor Verification and Clock Set . . . . 33Short Haul Modem Installation . . . . 33Telephone Modem Installation . . . . 35

9.0 Sealing & Desiccating the Enclosure . . . . 36

10.0 Installation at Central Computer . . . . 37Supplied Components . . . . . 37Installation . . . . . . . 37Model JR-PH ~ Phone Connected . . . . 40

Supplied Components . . . . 40Installation - General. . . . . 40

Standard Installation Method . . 40

11.0 Maintenance & Troubleshooting . . . . 42General Maintenance . . . . . 42Instrumentation Maintenance . . . . 42Batteries . . . . . . . 42

Rechargeable Battery. . . . . 42Desiccant . . . . . . . 42Sensor Maintenance . . . . . . 42


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Description Page

1 Week . . . . . . 421 Month . . . . . . 436 Months . . . . . . 431 Year . . . . . . . 432 Years . . . . . . 433 Years . . . . . . 434-5 Years . . . . . . 43

General Maintenance . . . . . 43

Sensor Maintenance . . . . . . 44Rain Gage . . . . . . 44

Calibrating a Rain Bucket . . . 44Suggestions . . . . . 44

Solar Sensor . . . . . . 45Wind Sensor . . . . . . 45Relative Humidity Sensor . . . . 45Temperature Sensor . . . . . 46

Other Maintenance . . . . . . 46Seal of ET Enclosure . . . . . 46Battery Check . . . . . . 47

Sensor Testing . . . . . . 47Wind Speed Sensor . . . . . 48Wind Direction Sensor . . . . 48Solar Radiation Sensor (Pyranometer) . . 48Tipping Bucket Rain Gage . . . . 48Temperature/Relative Humidity Sensor . . 49

Troubleshooting . . . . . . 50Isolating the Problem. . . . 50Checking the Weather Station . . . 50

Using the ML 10-KD Keyboard Display . 50Datalogger Location Table . . . 51

Troubleshooting Problems . . . . 51No display on the ML 10-KD keyboard . 51No response using the keyboard and/or

erroneous letters in the display . 52


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Description Page

No Response from Datalogger through SC32Aor Modem Peripheral . . . . . 52

At the datalogger . . . 52At the computer . . . 52

-99999 Displayed in an Input Location . . 53Unreasonable Results Displayedin an Input Location . . . . . 536999 or 99999 Stored in Final Storage . . 53

Using a Laptop Computer . . . . 53

Checking the Communications Wire Path . . . 54Loop Resistance . . . . . 54Ground Resistance . . . . . 54WS-PRO-SH Direct Connect Weather Station . 54

Weather Station will not answer . . 54Checking the RAD modem . . . 55Checking the Communication Wire Path . 56

WS-PRO-PH Phone Connect Weather Station . 57Weather Station will not answer . . 57

Computer Modem & Communication Troubleshooting . 58Weather Software will not communicatewith the weather station . . . . 58

Testing the Short Haul Modem . . 58Testing the Phone Modem . . . 59


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Appendix

Description Page

Upgrading the Model JR Weather Stationto a Model PRO Weather Station . . . . 60

Typical 3-Rod Grounding Grid . . . . . 60Ground Resistance . . . . . . 61Bentonite Contact . . . . . . 61Rocky Conditions . . . . . . 61Rock Layer . . . . . . . 61Improving Earth Grounds . . . . . 62MSP-1 Pipe Surge Arrestors . . . . . 62


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Table of Figures

Figure # Description Page

#1 Effect of Structure on Wind Flow . . . 4

#2 Magnetic Declination for the ContiguousUnited States . . . . . . 6

#3 Declination Angles . . . . . 8

#4 Concrete Base Detail . . . . . 11

#5 Anchor Bolt/Template Detail. . . 11

#6 External Wiring Detail at the PRO-SH Station . 14

#7 External Wiring Detail at the PRO-PH Station . 17

#8 Mounting ET Enclosure on Tower . . . 18

#9 16VAC Connection & RechargeableBattery Installation . . . . 20

#10 Solar Pane Installation Detail . . . 23

#11 Cross-Arm Mounting Detail . . . . 25

#12 Wind Sensor Installation Detail . . . 27

#13 Temperature/RH Sensor Installation Detail. . 28

#14 Solar Radiation Sensor Installation Detail . . 29

#15 Sensor Cable Connections . . . . 30

#16 Sensor Switch Settings . . . . 31

#17 Upgrading a “JR” to a “PRO” Weather Station . 32

#18 Short Haul Modem Installation in ET Enclosure . 34

#19 Telephone Modem Installation in ET Enclosure . 36


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Table of Figures Cont’d.

Figure # Description Page

#20 Desiccant Pack Installation . . . . 36

#21 Installation at Central Computer for DirectConnected Weather Station . . . . 39

#22 Installation at Central Computer forTelephone Connected Weather Station . . 41

#23 Using the ML 10-KD Keyboard Display . . 50

#24 Configuration of Serial Cable . . . 53

#25 Test of Short Haul Modem . . . . 55

#26 Test of Communication Wires . . . 56

#27 Upgrade Kit . . . . . . 60

#28 Typical 3-Rod Grounding Grid Detail . . 63

#29 Testing of Wind Sensor . . . . 64

#30 Testing of Solar Radiation Sensor . . . 65

#31 Testing of Rain Gage . . . . . 66

#32 Testing of Temperature/RH Sensor . . . 67

#33 Testing of Air Temperature Probe . . . 68


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RAIN BIRD

Weather Station -- Model - PRO

1.0 GENERAL:

The Rain Bird “Model PRO” WeatherStation, when used in conjunction withthe Rain Bird MAXI 5, MAXI “Nimbus”or MAXI “Cirrus” Central Controlsystem, provides the irrigation managerwith a powerful tool to aid in thegrowing of lush, healthy, greenturfgrass, while conserving importantresources, such as water, power, etc.

The MAXI 5, MAXI Nimbus or MAXICirrus software interrogates the WeatherStation to gather information that hasbeen gathered on a daily basis, on 5second intervals for short haul modemonly, of the climatic conditions thataffect the irrigation application for thearea.

The MAXI 5, MAXI Nimbus or MAXICirrus software subjects the climaticinformation that it gathers to a version ofthe modified Penman Equation. ThePenman Equation has been proventhrough over 35 years of universityresearch, to be one of the most reliablepredictors of turfgrass water userequirements.

The Weather Station monitors thefollowing climatic conditions:

RainfallWind Speed & DirectionAir TemperatureRelative HumiditySolar Radiation

The basic PRO Weather Stationconfiguration includes sensors tomonitor these conditions, a microloggerto capture this data, a modem tocommunicate the information to theMAXI Central Computer and a powersupply.

The Rain Bird Model “PRO” WeatherStation is available in two (2) basicconfigurations;

Model PRO-SH, which is adirect wire system intended foruse when the weather station iswithin 20,000 feet of the MAXICentral Computer andcommunication is via a wirepath, between the weatherstation and the computer.


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Model PRO-PH, which is aphone modem system for usewhen the weather station isfurther than 20,000 feet from theMAXI Central Computer or

when they cannot be connectedby a communication wire path.The system communicatesutilizing a standard, dedicatedphone service.

2.0 TOOLS & SUPPLIES: (Installer Supplied)

The installer needs access to the following tools and supplies for installation of theWeather Station.

TOOLS REQ’D.ShovelRakeWire StrippersScrew driver, regular bladeFlat Metal FileScrew driver, thin regular bladeWheelbarrowScrew driver, Phillips headHand SawOpen End Wrench 7/16”(2) - Open End Wrench 9/16”Open End Wrench ½”Open End Wrench 3/8”Claw HammerMagnetic CompassTape Measure 12’ - 20’Matr’l. for Concrete Base Form:

(4) 12” Wood Stakes (1) 2”x 4”x 10’ piece of wood

(8) 8p double-head nails(8)16p double-head nails20 ft. of form wire½ yard of concrete

6 Ft. Step Ladder Concrete trowel & edgerSaw HorseWireFish Tape or small dia. rope

SUPPLIES REQ’D.

(2) Standard Size (12” x 18”)Rectangular Valve Boxes

(3) MGP-1 Maxi Grounding PlateAssembly

(5) MSP-1 Maxi Surge Arrestor (Pipe Type) (for “JR-SH” model ONLY).(6) 5/8” Dia. X 8’-0” copper clad

grounding rods#10 Gauge or larger bare copper grounding wire - length as required.Brass Grounding Clamps - as required(20) 3-M model DBY or DBR Direct

Burial splice kits or 3-M Scotch-lok3500 series Connector Packs.

Belden #9883 or PE-39 direct burial,communication cable - length asrequired.

(2) Lengths of type UF power wire(white and black) - size and length asrequired.

(1) 4” x 4” electrical junction box withcover plus connectors as required fortransformer mounting.

(2) Open Spade, crimp-on typeconnectors - for connecting powerwiring to transformer.



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3.0 WEATHER STATION SITE SELECTION:

Site selection for the Weather Station isone of the most crucial steps in asuccessful installation and an efficientlyoperating irrigation system. The siteselection will greatly impact theaccuracy of the meteorological datacollected by the station. The siteselection process has many constraintsplaced on it, and although the “perfect”site is often non-existent, the followinggeneralities should be kept in mind.

In general, the site should berepresentative of the general area ofinterest and reflect the general conditionsof the project’s turf. The more “typical”the site, in this regard, the more usefulwill be the information gathered. Thesite should also be away from theinfluence of obstructions such asbuildings, trees, etc.

The weather station should not belocated where sprinkler irrigation waterwill strike sensors or instrumentenclosure. The turf around the weatherstation needs to be irrigated however - soit is recommended that half-circlesprinklers be placed around the base ofthe weather station and ”throwing OUT’away from the weather station. In thisway the turf can be irrigated and at thesame time water can be kept off thesensors and instrument enclosure of theweather station.

The sensors of the weather stationshould be eight (8) to ten (10) feet abovethe turfgrass. Remember that the roofof a building IS NOT a good site for theweather station.

The weather station does NOT need tobe “hidden”. The Rain Bird weatherstation has been engineered to beaesthetically pleasing. The urge to“hide” the station needs to be balancedwith the selection of the most “typical”turfgrass area. The station should NOTnegatively impact the turfgrassenvironment or utility. In fact, manyinstallations prominently display theWeather Station to demonstrate theircommitment to water conservation.

If the site may be prone to vandalism, anopen, chain-link, 6 foot high securityfence with a lockable access gate shouldbe placed around the weather station.The fence shall be a minimum of eight(8) feet out from the weather station onall sides and should be a type that willnot interfere with the accuracy of thesensors.

In your selection of a site - try to avoidsites on or near open dirt fields andasphalt parking areas. These sites areprone to high invective heats that candistort the information. Any areas thatare within 90 to 100 feet “up wind” ofthe weather station can adversely affectthe weather station reading accuracies.

The requirements of each weather stationsensor must be considered whenselecting the proper location for aweather station site. In addition to thesegeneralities, each sensor has its ownspecialized constraints. While completeinformation is available, upon specialrequest, for each individual sensor, thefollowing are the highlights of each.



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(a) TEMPERATURE ANDRELATIVE HUMIDITY:

Sensors should be located over an openlevel turf area at least 30 feet indiameter. The surface should be thetypical turfgrass of the area in interest.Sensors should be located a distanceaway of at least four (4) times the heightof any nearby obstruction and at least 90feet from large paved areas. Sensorsshould be protected from thermalradiation, and adequately ventilated.

Situations to avoid include:• large industrial heat sources• rooftops• steep slopes• sheltered hollows• high vegetation• shaded areas

• top of a hill• bottom of a swale• swamps• areas where snow drifts occur• low places holding standing

water

(b) SOLAR RADIATION:

Pyranometers should be located to avoidshadows on the sensor at any time.Mounting it on the southern most portion(northern hemisphere) of the weatherstation will minimize the chance ofshading from other weather stationstructures. Reflective surfaces andsources of artificial radiation should beavoided. The height at which the sensoris mounted is not critical.

(c ) PRECIPITATION



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A rain gage should be located over levelground that is covered with short grassor gravel. In open areas, the distance toobstructions should be two to four timesthe height of the obstruction.

The height of the opening should be aslow as possible, but should be highenough to avoid splashing from theground.

The gage must be mounted above theaverage level of snow accumulation inareas that experience significantsnowfall.

Standard measurement heights:

1.0 meter +/- 1.0 cm (AASC)30.0 centimeter minimum

(WMO, EPA)

(d) DETERMINING TRUE NORTH FOR WIND VANE OREINTATION

Magnetic declination, or other methodsto find True North, should bedetermined prior to installing the

weather station. True North is usuallyfound by reading a magnetic compassand applying the correction for magneticdeclination. (Other methods employobservations using the North Star or thesun, and are discussed in the QualityAssurance Handbook for Air PollutionMeasurement Systems, Volume IV -Meteorological Measurements.) Themagnetic declination is the number ofdegrees between True North andMagnetic North. Magnetic declinationfor a specific site can be obtained from aUSFA map, local airport, or through acomputer service offered by the USFScalled GEOMAG (see page 7). Ageneral map showing magneticdeclination for the contiguous UnitedStates is shown below in FIGURE 2.

Declination angles east of True North areconsidered negative and are subtractedfrom 0 degrees to get True North.Declination angles west of True Northare considered positive and are added to0 degrees to get True North. Forexample, the declination for Logan,Utah is 16 degrees East. True North is360 degrees minus 16 degrees, or 344degrees as read on a compass.

REFER TO NEXT PAGE FOR FIGURE 2



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FIGURE 2 - MAGNETIC DECLINATION FOR THECONTIGUOUS UNITED STATE



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PROMPTS FROM GEOMAG

GEOMAG is accessed by phone with aPC and telephone modem and acommunications program such as ProComm or Windows 95 Hyperterminal.GEOMAG prompts the caller for sitelatitude, longitude and elevation, whichit uses to determine the magneticdeclination and annual change. Thefollowing information, menu andprompts are from GEOMAG.

GEOMAG is a user-friendly programthat provides estimates of thegeomagnetic field elements, includingdeclination and total field intensity,based upon Magnetic Models. Theprogram is accessible by modem orthrough the Internet.

Modem Access:

Modem settings: No parity, 8 data bitsand 1 stop bit (i.e., N81).

Telephone numbers:

Phone Number Baud Rates

303-273-8672 2400 303-273-8673 1200 303-273-8678 1200

Upon carrier-signal detection, pressReturn once or twice.

If you are using one of the commercialnumbers, the following prompts willappear. Type the responses shown(followed by pressing RETURN):

GLDSV1> c neis[RETURN]Username: QED[RETURN}

Main Menu:

Type Q for Quick Epicenter

Determinations (QED) L for Earthquake Lists (EQLIST) M for Geomagnetic Field

values (GEOMAG) X to log out

ENTER program option: “M”

Would you like information on how torun GEOMAG (Y/N)? Enter N

OPTIONS:

1 = Field Values (D,I,H,X,Z,F)2 = Magnetic Pole Positions3 = Dipole Axis and Magnitude4 = Magnetic Center [1] : 1

Display values twice [N]: press returnName of field model [USCON90]: press returnDate [current date]: press returnLatitude :42/2 NLongitude : 111/51/2WElevation : 4454 ft



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Example of report generated byGEOMAG:

Model: USCON90 Latitude: 42/2 NDate: 7/27/93 Longitude: 111/51/2W

Elevation: 4454.0 ft

Declination is:deg min 15 59.6

Annual change:deg min0 -6.1

EXITING:

press “Cntrl-Z” to exit GEOMAG

When the main menu reappears eitherselect another option or Type “X” to logout.

If you used one of the commercialnumbers, the GLDSV1> prompt willreappear.

Type “LO” to disconnect.

Use of GEOMAG is free (except fortelephone charges). If possible, pleaseavoid using GEOMAG between 9 a.m.and 4 p.m., mountain time, Mondaythrough Friday.

The declination in the example above islisted as 15 degrees and 59.6 minutes.Expressed in degrees, this would be15.99 degrees. As shown in FIGURE 2,the declination for Utah is east, so TrueNorth for this site is 360 - 15.99, or 344degrees. The annual change is -6.1minutes.

Refer to FIGURE 3 below:

FIGURE 3 - DECLINATION ANGLES



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4.0 WEATHER STATION CONCRETE BASE:

SUPPLIED COMPONENTS

(3) ½” x 12” long “L” Anchor Bolts(9) ½” Nuts(3) Flat Steel Washers(1) Stainless Steel Template(1) 1 ½” Dia. Long Sweep Elbow

INSTALLER SUPPLIED

(1) 2” x 4” x 10’-0” piece offorming lumber

(4) 16p Double Headed nails10’-0 “ length of form wire½ yard of concreteDuct Tape

TOOLS REQUIRED

Claw HammerHand SawSaw HorseShovelPliers & Wire Cutters

INSTALLATION:

For the following procedures - Refer to FIGURE 4 below.

1.0 The Tower for the “PRO”Weather Station - attaches to a usersupplied poured concrete foundation- constructed as shown in FIGURE4 below.

2.0 Dig the required foundationhole - with a 24” square topand slanting outward sides,to the bottom of 32” square.The “Sloping” sides of thefoundation are veryIMPORTANT in providingthe necessary support to theweather station tower, inpreventing it from “leaning”or falling over, due to windload on the station.

3.0 Determine the proper locationof the long sweep elbow anddig a small cavity

to accept the end of the elbowthat will protrude beyond theconcrete base.

4.0 Construct the concrete formwith 2” x 4” lumber and 16pdouble-headed nails.Center the form over the dughole. Adjacent to the longlegs of the form that extendbeyond the hole, drive fourstakes into the soil. Levelthe form. Secure the formto the stakes with 8p nails -making sure that the formremains “level”.

5.0 Place a piece of duct tapeover one end of the 1 ½”diameter long sweep elbow.Insert the elbow into thehole, with the taped endinto the small cavity that you



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have dug on one side of thehole.

6.0 Insert the other end of the

long sweep elbow into thecenter hole in the stainlesssteel template. Tape theend of the elbow with ducttape.

7.0 Take the three ½” x 12” long“L” anchor bolts and installtwo (2) hex huts on to eachbolt. Insert one in each ofthe holes in the template andinstall one of the flat washersand a nut to secure the anchorbolt to the template.

Refer to FIGURE 5.

8.0 Take the form wire and cut itinto two (2) equal lengths.Attach one end of one of thewires to one of the 16p nailson the form. String the wireup over the form and to thelong sweep elbow - making aturn around it. Continue thewire over to the 16p nail atthe other corner of the form(located on the same side ofthe form as the other nail)and centering the templateand elbow attach the wiresecurely to the nail. Repeatthis same process with theother piece of form wire -going to the opposite nailsand further securing the

template, elbow and anchorbolts in the form.

. 9.0 Steady the template assembly byputting a 2” spacer between thetemplate and the top of the form.Pour the concrete into the holeand form - it will requireapproximately ½ yard - screedthe concrete level with the topof the form. Check to makesure the template is correctlyorientated and centered. Thebottom of the anchor boltthreads should be about ½”above the top of the concrete.Check to be sure the template is“level” in two (2) dimensions.Use a trowel and edger to finishthe concrete.

BE SURE THAT YOU HAVETHE TEMPLATE PROPERLYORIENTATED IN RESPECTTO “NORTH”. Refer toFIGURE 4.

The template should have thetwo (2) bolt holes, that areparallel with one side of thetemplate, on the north side ofthe base.

10.0 Wait 24 hours before removingthe concrete form. Wait 7 daysbefore mounting the weatherstation to the base.

REFER TO NEXT PAGE FOR FIGURES 4 & 5



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FIGURE 4 - CONCRETE BASE DETAIL

FIGURE 5 - ANCHOR BOLT/TEMPLATE DETAIL5.0 EXTERNAL WIRING TO WEATHER STATION: ( Refer to FIGS. 6 & 7)



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WIRING VALVE ACCESS BOX

At the base of the Weather Station andas near to the base as feasibly possible,dig a hole large enough to install astandard 18” x 24” rectangular valve boxand cover. The valve box shallaccommodate all wiring connections,one rod of a 3-rod grounding grid,MGP-1 grounding plate assemblies andMSP-1 surge arrestors.

WEATHER STATION POWER WIRING

Furnished as part of the Weather Stationis a 120VAC to 16VAC powertransformer. This transformer can belocated in the pedestal of a field satellitecontroller that is in the near proximity ofthe weather station or some otherconvenient weather proof location.Install the transformer in a 4”x 4” metalelectrical box with cover. Connect the120VAC power wires of the transformerto a source of 120VAC power that is noteasily turned off. To the output of thetransformer, connect a pair of UF wires,of proper size, using “crimp-on” openspade connectors.

clad, ground rod - one of a 3-rodgrounding grid.

NOTE ! The minimum voltage tothe transformer shall be not less than 112volts.

Wire sizing shall be in accordance withthe chart given below.

Wire shall be Type “UF” (undergroundfeeder cable) with PVC insulation. The16VAC power is used to provideconstant charging of the battery withinthe weather station, through the batterycharging circuit.

WIRE SIZING CHART

WIRE SIZE DISTANCE (feet)*

18 500

16 800

14 1275

12 2000

10 3250

8 5100The power wires shall be direct buriedand run over to the weather station.Connect the 16VAC power wires to the“LINE” side of an MSP-1 surge arrestor,which shall be mounted in an MGP-1grounding plate assembly. The MGP-1grounding plate assembly shall besecurely mounted on a 5/8” dia. copper

* Transformer to Weather Station

The “EQUIPMENT’ side of this MSP-1surge arrestor shall be connected to “red”and “black” wires of the 20’power wirecable, which is furnished as part of

the weather station, and MARKED“P/N 9922”. This cable shall be routedthrough the 1 ½” dia. long sweep elbow

to the base of the weather station. Allwire connections and splices in thepower wiring shall be made using 3-M



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DBY direct burial connectors. DONOT apply power to transformer at thistime.

WEATHER STATION COMMUNICATION WIRING

DIRECT CONNECTED - USINGSHORT HAUL MODEMS:(MODEL PRO-SH - Only)

Coming from the Central location,furnish and install a Belden #9883,Direct Burial Type, communicationcable over to the weather stationlocation. The Belden cable shall consistof three (3) twisted pair of wires (20Gauge), a bare copper drain wire and analuminum shield. The three (3) twistedpair shall be color coded as follows; 1pair “black” and “white”, 1 pair “black”and “green” and 1 pair “black” and“red”.

The BLACK (-XMT) & GREEN(+XMT) pair shall be connected to theBLACK & RED wires respectively, atthe “LINE” end of one of the MSP-1surge arrestors. The BLACK (-XMT)and the RED (+XMT) wires from the“EQUIPMENT” end of this MSP-1surge arrestor shall be connected to theWHITE (-XMT) and the GREEN(+XMT) wires of the communicationcable furnished with the weather stationand marked P/N 9720 “ET SHORTHAUL” “COMM”.

The RED (+RCV) & BLACK (-RCV)pair shall be connected to the RED &BLACK wires respectively, at the“LINE” end of the other MSP-1 surgearrestor. The RED (+RCV) and theBLACK (-RCV) wires from the“EQUIPMENT” end of this MSP-1surge arrestor shall be connected to theRED (+RCV) and the BLACK (-RCV)wires of the communication cablefurnished with the weather station andmarked P/N 9720 “ET SHORT HAUL”“COMM”.

This communication cable shall berouted through the 1 ½” diameter longsweep elbow to the base of the weatherstation. All wire connections andsplices in the communication wiringshall be made using 3-M DBY directburial connectors. DO NOT attempt touse any other type connectors ascommunication signal may be impairedand poor communication resulting.

GROUNDINGCOMMUNICATION CABLE

The bare copper drain wire of the Beldencable shall be grounded to the groundingrod, using a brass ground wire clamp.IMPORTANT ! DO NOT ground thedrain wire at the Central end of the cable- just leave the drain wire un-used.



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FIGURE 6 - EXTERNAL WIRING DETAIL AT THEPRO - SH WEATHER STATION



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WEATHER STATION COMMUNICATION WIRING

TELEPHONE CONNECTED - USINGTELEPHONE COMPANY LINES:(MODEL PRO-PH - Only)

The Telephone Company needs to run adirect burial telephone cable to theweather station and terminate it near thebase of the weather station. This needsto be a modem quality type telephoneline with a separate call number.

The “TIP” line of the telephone cableshall be connected to the WHITE(“TIP”) wire of a 20’telephone patchcable, furnished as part of the weatherstation, marked P/N 9661 - 2 conductorcable with WHITE (“TIP”) and BLACK(“RING”) pair of wires. The “RING”line of the telephone cable shall be

connected to the BLACK (“RING”) wireof the telephone patch cable (P/N 9661).Splices shall be made using 3-M DBYDirect Burial connectors. The splicesfor the phone line shall be made in thevalve box, where the power wiringsplices are made and where the MGP-1grounding plate assembly with an MSP-1 surge arrestor mounted in it, isattached to one rod of a 3-rod groundinggrid. Refer to FIGURE 7 below.

This telephone patch cable (P/N 9661)shall be routed through the 1 ½”diameter long sweep elbow to the baseof the weather station.

6.0 TOWER ASSEMBLY AND INSTALLATION:

SUPPLIED COMPONENTS

(1) Upper Tower Section(Tapered)

(2) Lower Tower Section w/Base (6) ½” Washers

(1) 12 foot 10 AWG Ground Cable

(1) Tower Plastic Cap

INSTALLATION

Take the 12 foot 10 AWG GroundCable, furnished as part of the weatherstation and cut a 9” piece from on end ofit. (This 9” piece will be used later).Attach one end of the ground wire to theground rod, of the 3-rod grounding grid,that is located in the valve box using abrass clamp. Refer to FIGURE 6 or 7.

Feed this ground wire through the 1 ½”long sweep elbow up to the base of theweather station.



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Remove the three (3) “top” nuts and flatwashers from the anchor bolts at theweather station template. Next removethe metal template - slipping it up overthe cables that are extending from the1 ½’ long sweep elbow. Be carefulNOT to damage the cables or theconnectors on the cables.

Take the lower section (with the baseattached) of the weather station towerand feed, from the base end, the powercable (P/N 9922) up through this section.Also feed, from the base end, the shorthaul communication cable (P/N 9720 -for the Model JR-SH weather station) orthe telephone communication patchcable (P/N 9661 - for the Model JR-PHweather station, up through this sectionof the tower. Finally feed the groundwire up through the lower section of thetower.

Lay this Lower Section of the tower, onthe ground, next to the concrete base,with the cables extending out the top ofthe tower section.

Take the Upper Section of the tower (thetapered section) and position it above thelower section on the ground. Feed thecables, coming from the lower section,up through the upper section of thetower. Secure the cables at the top ofthe upper section with tape, so that theycannot pull back down into the tower asyou assemble the two tower sections.

Now assemble the upper tower section tolower tower section, being careful NOTto damage the cables as you do so.

IMPORTANT ! Be sure that you haveeverything in proper order BEFOREyou assemble the two tower sectionstogether -because once assembled theycannot be taken apart.

Place one of the flat washers on top ofthe two (2) nuts on each of the anchorbolts. Raise the tower and position thebase on the three (3) anchor bolts thathave been embedded in the pouredconcrete base. Be careful NOT todamage the cables in doing so. Nextinstall a flat washer and a nut on each ofthe bolts and hand tighten the nuts justenough to hold the tower in position.

Next check the level of the tower byplacing a level on the north and eastsides of the lower tower base. Adjust thetopmost nut of the two (2) lower nuts(leveling nuts) on each bolt, asnecessary to level the base. When levelis established, lock the leveling nut inplace by tightening the lowest nutagainst it. Tighten the three top nutswith a wrench to secure the tower to thebase. The tower should now be readyfor the final assembly of the Enclosure,Sensors and Lightning Rod, etc.




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FIGURE 7 - EXTERNAL WIRING DETAIL AT THEPRO - PH WEATHER STATION



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7.0 INSTRUMENTATION ENCLOSURE INSTALLATION:

GENERAL:

The Model PRO weather stationdatalogger, power supply, sensorconnection panel, communicationsdevices and data retrieval peripherals aremounted in the ET Enclosure with thesensors themselves mounted on a cross-arm, which mounts to the top of theEnclosure.

MOUNTINGET ENCLOSURE TO THE

TOWER

enclosure brackets down the tower,from the top of the tower.

Position the Enclosure so that the top ofthe enclosure is even with the top of thetower and on the north side of the tower(for northern hemisphere). Tighten thebolts, on the clamps, to secure theenclosure to the tower. DO NOT over-tighten the bolts since doing so maydamage the tower or the enclosure.

Refer to FIGURE 8 below

Mount the Enclosure to the top ofthe weather station tower, by sliding the

FIGURE 8 - MOUNTING ENCLOSURE ON TOWER



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INSTALLATION OF LIGHTNING ROD

Refer to FIGURE 8 above:

Carefully mount the lightning rodbracket, furnished with the weatherstation, to the top of the weather stationtower. Locate it above the Enclosuretop bracket and near the top of the tower.Clearance between the clamp and theEnclosure is minimal. Care should betaken not to scratch the enclosure orsensor assembly. Insert the lightningrod into the bracket, with approximately½” to 1” of the rod extending below thebracket, and tighten the set screw tosecure the rod in the bracket.

Take the ground wire, that has been fedup the weather station tower, strip theinsulation from the end and curl the endso as to be able to connect the wire underthe head of one of the bolts on thelightning rod bracket. Be sure that youwrap this wire completely around thebolt and that you get a good contact withthe bolt and bracket. Tighten the boltsecurely so that you have a good tightconnection. This connection isEXTREMELY important to givemaximum protection to the weatherstation against damage from lightningsurges. This connection should beINSPECTED on a regular basis to

assure it remains tight and making goodcontact.

Take the 9” piece of ground wire, thatyou previously cut off the ground wire,and strip the insulation from each end ofit. Insert one end of this wire into thebrass grounding lug, located at the topof the Enclosure on the back panel.Tighten the set screw to secure the wirein the clamp. Curl the other end so as tobe able to place it around the other boltof the lightning rod bracket. Be sure thatyou wrap this wire completely aroundthe bolt and that you get a good contactwith the bolt and bracket. Tighten thebolt securely so that you have a goodtight connection. This connection isEXTREMELY important to givemaximum protection to the weatherstation against damage from lightningsurges. This connection should beINSPECTED on a regular basis toassure it remains tight and making goodcontact.

POWER SUPPLY RECHARGEABLE BATTERY

The weather station is furnished asstandard with a Sealed RechargeableBattery and including the mountingbracket. This battery is to be installedon the back panel of the Enclosure.

Refer to FIGURE 9 below.



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FIGURE 9 - 16VAC CONNECTION AND RECHARAGEABLE BATTERYINSTALLATION

Loosen the four (4) screws located onthe back panel of the Enclosure. Slipthe end of the battery bracket, that hasthe two (2) keyhole slots in it over theupper two (2) screws. Line up thebattery bracket slotted holes, in the otherend of the bracket, with the two (2)lower screws. Now push “down” on thebattery - seating the bracket in place withthe screws. Tighten all four screws

to properly secure the battery to the backpanel of the ET Enclosure.

Plug the connector on the wire leads ofthe battery to the “top” batteryconnection - marked “LA” - which islocated on the Enclosure panel assemblyjust above the battery location.



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AC EXTERNAL POWER WIRING

Refer to FIGURE 8 & 9 above:

The 16VAC power wiring, that youhave fed up through the weather stationtower, shall be routed down the backside of the Enclosure and into theEnclosure through the Heyco fitting,marked “power”. Unscrew the cap ofthe Heyco fitting (on the back side of theenclosure) and push the plug out of thefitting. This plug can be discarded as itwill not be used. Feed the power wiresthrough the Heyco fitting and connectthem to the the connectors of theEnclosure, marked “CHG”. Tighten

the cap on the Heyco fitting to sealaround the cable. The wires can beattached to these connectors by“depressing” the lever on the connectorfor each wire and while doing so, insertthe stripped end of the wire. Uponrelease of the lever, the wire will besecured in the connector. CAUTION !Be careful in depressing the lever so asnot to break the lever. The polarity ofthe 16VAC power wiring does notmatter, therefore it makes no differencewhich wire goes into which connector.At this point you can now connect thepower to the transformer or wait untilyou have connected the sensors, whichever you prefer.

It will be noted that on the panel assembly there are connectors marked “ALK”.These connectors are NOT to be USED. The use of an Alkaline battery is NOT anoption.

CONTINUE ON THE NEXT PAGE

POWER SUPPLY



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OPTION SOLAR PANEL


Model Numbers shall be as; PRO-SH-SPor PRO-PH-SP. (SP designating theSolar Panel Option).

An option is for use of a Solar Panel, forthe power supply, rather than thestandard 120VAC/16VAC transformer.Mount the solar panel to the weatherstation tower using the mountingbrackets furnished as part of the solarpanel assembly. Mount the solar panelto the tower so it faces south (northernhemisphere). Position the solar panel ashigh off the ground as practical,ensuring it cannot interfere with air flowor sunlight around the sensors.

The solar panel should be oriented toreceive maximum sun light exposureover the course of the year. It is alsonecessary that the solar panel have theproper “tilt”. Suggested “tilt” angles(reference to the horizontal plane) arelisted below.

Site Latitude Tilt Angle0 to 10 degrees 10 degrees

11 to 20 deg. Latitude +5degrees



65 deg. 80 degrees

After determining the “tilt” angle,loosen the two (2) bolts that attach thesolar panel to the mounting bracket.Adjust the angle of the solar panel, thentighten the bolts to secure it in the properposition. Secure the lead wire, comingfrom the solar panel, to the Tower mastusing wire ties.

The solar panel cable shall be routed upand through the Heyco fitting on theback panel of the Enclosure and marked“power”. Unscrew the cap of the Heycofitting (on the back side of the enclosure)and push the plug out of the fitting.This plug can be discarded as it will notbe used. Now feed the solar panelpower cable through the Heyco fittingand connect it to the connectors of theEnclosure, marked “CHG”. The wirescan be attached to these connectors by“depressing” the lever on the connectorfor eaach wire and while doing so, insertthe stripped end of the wire. Uponrelease of the lever,, the wire will besecured in the connector. CAUTION !Be careful in depressing the lever so asnot to break the lever. The polarity ofthe wires does not matter, therefore itmakes no difference which wire goesinto which connector. The solar panelinstallation should now be completed.



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FIGURE 10 - SOLAR PANEL INSTALLATION DETAIL

8.0 INSTALLATION OF INSTRUMENTATION



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GENERAL:

The Model PRO weather station comeswith the some of the sensinginstruments, and sensor wiring todatalogger completely assembled as aunit on a cross-arm. The SolarRadiation Pyranometer - along with theleveling device are mounted on abracket, which in turn is mounted on thecross-arm of the Enclosure. On thisend of the cross-arm the “Tipping RainBucket” is also mounted at the factory.On the opposite end of the cross-arm isattached the mounting bracket, whichhas been factory installed, for the Windspeed and Wind direction sensinginstruments. The Temperature andRelative Humidity sensors are on the endof their cable and only need installinginto the radiation shield. The cables foreach of these sensors are mounted in thecross-arm and terminated at the properlocation of each sensor. The cables onlyneed to be routed and plugged into theproper connectors on the back of theback panel of the ET Enclosure.

SUPPLIED COMPONENTS

(1) Sensor Cross-Arm(1) Met One 034A Wind Sensor(1) 034A Mounting Shaft(1) Radiation Shield

INSTALLATION OF CROSS-ARMTO ET ENCLOSURE:


Remove the four (4) Phillips headscrews from the bottom center of thecross-arm. With the Enclosure coverremoved, place the cross-arm on top ofthe Enclosure. The cross-arm needs tobe oriented along a due east to due westaxis. If necessary adjust the Enclosureon the tower to properly orient the cross-arm. Also be sure that the opening inthe middle and one side of the cross-arm,where the sensor cables exit, is to theback of the Enclosure so that the cablescan enter the top of the cover that fitsover the cable connectors on the back ofthe Enclosure. Line up the fourthreaded holes on the under side of thecross-arm (where you just removed thescrews) with the four holes in the top ofthe Enclosure. Attach the cross-arm tothe Enclosure by inserting the four (4)screws, from in side the enclosure upthrough the top and into the threadedholes of the cross-arm. Tighten thescrews securely.




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FIGURE 11 - CROSS-ARM MOUNTING



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INSTALLATION OF 034AWIND SENSOR:


With the Sensor Cross-Arm securelyinstalled to the Enclosure you are readyto install the 034A Wind Sensorinstrument. The wind vane is orientedafter the datalogger has beenprogrammed and the location of TrueNorth has been determined. Orientationis most easily done with two people, oneto aim and adjust the sensor, while theother observes the wind directiondisplayed by CR10KD KeyboardDisplay or a laptop PC computer.

Remove the aligning screw from thebase of the 034A wind sensor unit.Place the 034A wind sensor into themounting shaft, that is clamped to theend of the sensor cross-arm by means ofa U-Bolt clamp.

(The short, black mounting shaft,included with the 034A wind sensor willNOT be used).

Secure the 034A wind sensor in themounting shaft, by aligning the threadedhole in the wind sensor with the hole inthe side of the mounting shaft, and re-installing the aligning screw.

Next loosen the set screw in the top ofthe 034A wind sensor (the seet screwopposite the one securing the winddirection point). Place the end of thewind vane into the hole. Properly orientthe vane to be in a true vertical positionand secure it by tightening the set screw.

Attach the wind sensor cable connectorto the connector on the 034A windsensor.

Without allowing the mounting shaft forthe 034A wind sensor to “slip down” (itmay be a good idea to mark the positionof the U-Bolt on the shaft so that you cancorrectly position it should is “slip”)slightly loosen the nuts of the “U-Bolt”clamp of the mounting shaft - justenough so you can rotate the mountingshaft but not allow the shaft to “slipdown”.

Establish a reference point on thehorizon for True North.

Sighting down the instrument centerline, aim the counter weight at TrueNorth. Display input location #8 forwind direction, using the *6 Mode ofthe datalogger.

While holding the wind vane position,slowly rotate the sensor base/mountingshaft until the datalogger indicates 0degrees. Securely tighten the clampnuts.




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FIGURE 12 - WIND SENSOR INSTALLATION DETAILINSTALLATION OF RELATIVEHUMIDITY / TEMPERATURESENSOR AND RADIATIONSHIELD:



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On the bottom of the Cross-Arm, on theend where the wind sensor has beeninstalled, remove the two screws for theRelative Humidity/Temperature sensorRadiation Shield.

Un-tape the RH/Temperature sensorfrom the bottom of the Cross-Arm.

Remove the “yellow” protective plasticcap from the end of the sensor, byslipping it off the end of the sensor.This can be discarded as it will not beused.

Insert the RH/Temperature sensor intothe end of the shaft of the RadiationShield. Insert it to a depth where it issecurely seated. Now secure theRadiation Shield to the bottom of thesensor Cross-Arm with the two (2)screws you have previously removed.

FIGURE 13 - TEMPERATURE/RH SENSOR INSTALLATION DETAIL

INSTALLATION OF SOLARRADIATION PYRANOMETER:




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The Solar Radiation Pyranometer, (withthe leveling device) is mounted, at thefactory, on a mounting bracket at theopposite end of the cross-arm near theTipping Rain Bucket gage. By using

the three (3) leveling screws - level thePyranometer. After leveling - removethe “RED” protective cap from thePyranometer.

FIGURE 14 - SOLAR RADIATION SENSOR INSTALLATION DETAILSENSOR CABLE CONNECTIONS:

Refer to FIGURES 12 & 15:



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The Sensor Cables exit from the centerback of the Cross-Arm. The cablesneed to be routed down the back of theEnclosure and plugged into theconnectors on the back panel of theEnclosure as follows:

Solar Radiation #10105 cable -connect to #3 connector [labeled“SOLAR RADIATION”]

Rain #10094 cable - connect to #5connector [labeled “RAIN

(PRECIP)”]

Temp/RH #10090 cable - connectto #1 connector [labeled“TEMP/RH”]

WD/WS (Wind Direction/WindSpeed) #10408 cable - connect to#2 connector [labeled “WS/WD”]

Making sure that all cables are properlyenclosed behind the cover - replace thecable cover. Be sure that you do notpinch any of the cables between thecover and the back panel of theEnclosure.

FIGURE 15 - SENSOR CABLE CONNECTIONS



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CONFIGURE SENSOR SWITCHSETTINGS:


The Sensor Switches are located on theET Enclosure panel just below the

modem and to the right of the the “HeatSink” located to the right of the batteryconnectors. These switches or potsneed to be set as indicated in FIGURE16 below.

FIGURE 16 - SENSOR SWITCH SETTINGS

UPGRADING A “JR” MODELWEATHER STATION TO A“PRO” MODEL:


By means of the “UPGRADE KIT” aModel “JR” Rain Bird weather stationcan be upgraded to a Model “PRO”weather station.

On the top of the Enclosure of theexisting model “JR” weather station -remove the three (3) leveling screws andsprings from the mounting bracket forthe Temperature/Relative Humidity andSolar Radiation sensors.

Remove the white Temperature/RelativeHumidity sensor from the bracket byremoving the three screws under thebracket and securing it to the bracket.This sensor will NOT be used with thenew upgrade kit.

Reverse the orientation of the mountingbracket and place it on the upgrade



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cross-arm, on the support brackets onthe cross-arm near the tipping bucketrain gage. Thread the three (3) levelingscrews into the threaded holes in thesupport brackets. Be sure that thespring, for each screw, is between themounting bracket and the supportbracket. Turn each screw two (2) orthree (3) turns into the threaded holes.

Install the sensor cross-arm to the top ofthe Enclosure as previously described.All other sensors, including the 034AWind Sensor, the Radiation Shield,cables, etc. shall be installed aspreviously described in this section.

All cables shall be connected to theconnectors on the back panel of theEnclosure - as previously described andas shown in FIGURE 15.

FIGURE 17 - UPGRADING A “JR” TO A “PRO” WEATHER STATION



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SENSOR VERIFICATION ANDCLOCK SET:

Check the measurements of all sensorsafter the datalogger is programmed.Display measurements using the *6Mode with the ML10KD dataloggersupport software.

InputLoc. Parameter Normal Range

1 Battery (Volt) 12.9 to 14.2 Volts

2 Air Temp. –40 to +50 C degrees

3 Humidity 0% to 100%

4 Wind Run 0 to 800 Kms/day

5 Solar (Langleys) 0 to 0.07 cal/cm2

6 Rain Fall 0 to 0.02 inches

7 Wind Direction 0 to 359 degrees

8 Air Temp. -40 to +122 degrees F

9 Humidity 0% to 100%

10 Wind Speed 0 to 110 mph

11 Solar (Langleys) 0 to 0.07 Cal/cm2

12 Rain Fall 0 to 0.02 inches

13 Encl. Humidity 10 to 30% when sealed for several

hours

14 Encl. Internal Close to Air TemperatureTemperature

15 Program Signature Depends onProgram Version

SHORT HAUL MODEM INSTALLATION

Refer to FIGURE 18 below: (PRO-SH)

The Short Haul Modem, at the weatherstation, is normally installed at thefactory in the ET Enclosure. The ShortHaul Modems enable communicationbetween the datalogger and the centralcomputer over two (2) twisted pairs ofwires. The maximum distance betweenmodems is determined by the baud rateand the wire gauge. At 9600 baud, theapproximate range is 4.0 miles. DCE/DTE switches on the modems must beset to DCE.

INSTALLATION:

For installation of the Short Haul RADModem inside the Enclosure, thefollowing components are provided inthe Short Haul modem kit:

SC932C Interface w/ribbon cableRAD ModemRAD/SC932C Mounting BracketVelcro Mounting Strap w/BuckleMounting Screws12 inch 4-wire Patch Cable

Partially install three (3) of the furnishedscrews in the holes on the left side of theEnclosure housing for the datalogger.

Hold the Modem mounting bracket inthe position it will be in the Enclosure.Thread the Velcro mounting strapthrough the two outer slots of the lowerset of slots in the modem mountingbracket. Thread from the top down onthe far left slot first. The side of thestrap with Velcro should be facing



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“down” toward the datalogger housing.Then carry the strap across the back ofthe bracket and thread it to the front ofthe bracket through the far right slot ofthe lower set of slots.

Slide the bracket flange, with the threescrew slots, under the heads of the three(3) mounting screws you have partiallyinstalled in the holes on the left side ofthe datalogger housing. With thebracket fully seated tighten the three (3)screws to secure the mounting bracket tothe datalogger housing.

Connect the SC932C Interface to theRAD Modem. Position this assemblyon the mounting bracket with theSC932C Interface pointing “down”.Strap the SC932C Interface unit securely

to the mounting bracket, using theVelcro strap.

Connect the SC932C 9-pin port to theinternal Enclosure 9-pin port (locatedjust below the Phone Modem port) usingthe blue ribbon cable provided.

Wire the RAD modem to the Enclosurewith the 12 inch 4-wire patch cordprovided. Black (-XMT) wire to -XMTconnections at the RAD modem and atthe connector on the Enclosure. TheRED (+XMT) wire to the +XMTconnections, the White (-RCV) wire tothe -RCV connections and the Green(+RCV) wire to the +RCV connectionsat the RAD modem and at the terminalblocks: RED to +RCV, Black to -RCV,Green to +XMT, White to -XMT.

FIGURE 18 - SH MODEM INSTALLATION IN ET ENCLOSURE

TELEPHONE MODEM INSTALLATION



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Refer to FIGURE 19 below: (PRO-PH)

The Telephone Modem, at the weatherstation, is normally installed at thefactory in the Enclosure. The telephonemodems enable communication betweenthe datalogger and a Hayes compatiblemodem at the central computer over adedicated telephone line. Phone linesurge protection is built into theEnclosure.

INSTALLATION

For installation of the phone modeminside the Enclosure, the followingcomponents are provided in the modemkit:

COM200 or COM 300 Modem12 inch RJ-11 Patch CordModem Mounting BracketMounting Screws12 inch #14 AWG Ground Wire4 Screws and Nuts

Partially install three (3) of the furnishedscrews in the holes on the left side of the Enclosure housing for the datalogger.

Attach the phone modem to themounting bracket, using the four screwsand nuts.

Taking the phone modem and bracketassembly - install the two keyhole slotsin the bracket over the top two (2)screws that you have previously installedin the datalogger housing. Be sure theopen slot in the bracket is in line withthe lower screw. Seat the modemproperly and tighten the screws to securethe modem to the datalogger. Connectthe 9-pin connector of the Blue RibbonCable to the phone modem 9-pin port.Connect the other end of the ribboncable to the 9-pin port (marked “CSI/O”) on the Enclosure. Secure it withthe two screws on the connector.

Connect the modem RJ-11 Patch Cord tothe RJ-11 jack on the phone modem(located to the right of the 9-pin port).Connect the other end of the RJ-11 PatchCord to the RJ-11 jack on theEnclosure, marked “phone modem”.

Connect one end of the 12 inch #14AWG ground wire to the terminal,marked “GND” and located on the rightside of the phone modem. Connect theother end of this ground wire to theconnector on the Enclosure that ismarked “GND”.

The installation of the phone modem isnow completed.




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FIGURE 19 - TELEPHONE MODEM INSTALLATION IN ET ENCLOSURE

9.0 SEALING & DESICCATINGTHE ENCLOSURE:

The Enclosure is supplied with adesiccant pack. The desiccant maintainsa low humidity in the enclosure tominimize the chance of condensation onthe instrumentation Desiccant shouldbe changed when the internal Enclosurehumidity sensor measures 30% orhigher. Install the desiccant as shown inFIGURE 21 below.Keep unused desiccant tightly sealedinan airtight container.

Take the desiccant pack out of its sealedplastic bag. Place it under the dessicantstrap just before leaving the station.

Be sure to close the enclosure haspsecurely. A padlock may be used on thelatch for extra security.

FIGURE 20 - DESSICANT PACKINSTALLATION



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10.0 INSTALLATION AT CENTRAL COMPUTER

MODEL PRO - SH ~ DirectConnected:


SUPPLIED COMPONENTS

(1) SMR-5A RAD Modem (1) 5 Foot 4-Wire Patch Cord (1) 25 Foot #10 AWG Ground Wire (1) Surge Protection Box

INSTALLATION

Attach the 5 foot 4-wire patch cord tothe SRM-5A RAD modem unit, whichis furnished as part of the weatherstation. Connect the GREEN (XMT+)wire to the “XMT+” terminal of theRAD modem. Connect the WHITE(XMT-) wire to the “XMT-“ terminal,the RED (RCV+) wire to the “RCV+”terminal and the BLACK (RCV-) wire tothe “RCV-“ terminal.

Connect the SRM-5A RAD modemdirectly to the serial port of the computeror use a 9-pin to 25-pin adapter ifrequired.

Mount the Surge Arrestor Box, which isfurnished as part of the weather station,in a suitable location near the computer(within less than 5 feet, as the patchcord is only 5 feet long).

Take the other end of the Patch Cord,that you have previously connected tothe modem, and connect the GREEN

(XMT+) wire to the upper left connectorin the Surge Arrestor Box. Connect theWHITE (XMT-) wire to the upper rightconnector, connect the RED (RCV+)wire to the lower right connector and theBLACK (RCV-) wire to the lower leftconnector of the surge arrestor box.

Just outside the building of the centralcomputer location, install an 18” x 24”rectangular valve box with cover overone ground rod of a 3-rod groundinggrid. (You may use the 3-rod groundinggrid for the central Interface unit, etc. iflocated nearby).

Furnish and install and MGP-1grounding plate assembly on the groundrod in the valve box. Furnish and installin the MGP-1 grounding plate assemblytwo (2) MSP-1 Pipe Surge Arrestors.Be sure to have the end marked“EQUIP” toward the central equipmentand the “LINE” end toward the weatherstation. Ground both ends of each ofthe MSP-1 Surge Arrestors to a screw ontheMGP-1 grounding plate assembly.

Using a piece of Belden #9883 directburial cable (of sufficient length to reachfrom the Surge Arrestor Box to theValve box) take the Green and Blacktwisted pair of wires and connect theGREEN (XMT+) wire to the upper leftterminal in the Surge Arrestor Box.Connect the BLACK (XMT-) wire to theupper right terminal in the SurgeArrestor Box. Take the Red and Blacktwisted pair of wires and connect theRED (RCV+) wire to the lower rightterminal of the Surge Arrestor Box.Connect the BLACK (RCV-) wire to the



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lower left terminal of the Surge ArrestorBox. Leave the third pair of twistedwires, consisting of a Black and Whitewire disconnected and for a spare pair.The copper drain wire shall also be leftdisconnected.

Route the Belden cable, out of thebuilding, under ground and out to thevalve box. Taking the Green and Blacktwisted pair of wires, connect theGREEN (XMT+) wire to the RED wire,on the end marked “EQUIP”, to one ofthe MSP-1 Pipe Surge Arrestor that youhave installed in the MGP-1 GroundingPlate Assembly. The BLACK (XMT-)wire shall be connected to the BLACKwire, on the end marked “EQUIP”, ofthis MSP-1 Surge Arrestor.

Next take the Red and Black twisted pairof wires of the Belden cable and connectthe RED (RCV+) wire to the RED wire,on the end marked “EQUIP”, of thesecond MSP-1 pipe surge arrestor.Connect the BLACK (RCV-) wire to theBLACK wire, on the end marked“EQUIP”, of this second MSP-1 pipesurge arrestor.

The third twisted pair, consisting of aBlack and White wire pair, shall be leftas a spare and un-connected. Thecopper drain wire shall also be leftdisconnected.

A Belden #9883 Cable, consisting ofthree twisted pair of wires, a copperdrain wire and an aluminum shield withan outer insulation for direct burial,shall be run underground form thecentral

location valve box out to the weatherstation location. At the valve box, atthe central location, take the Green andBlack pair of wires and connect theGREEN (XMT+) wire to the RED wire,coming from the end marked “LINE”,of the first MSP-1 pipe surge arrestor.Connect the BLACK (XMT-) wire fromthis pair, to the BLACK wire, comingfrom the end marked “LINE”, of thefirst MSP-1 pipe surge arrestor.

Take the Red and Black twisted pair ofwires, of the Belden cable and connectthe RED (RCV+) wire from this pair, tothe RED wire coming from the endmarked “LINE”, of the second MSP-1pipe surge arrestor. Connect theBLACK (RCV-) wire from this pair, tothe BLACK wire coming from the endmarked “LINE”, of the second MSP-1pipe surge arrestor.

The third twisted pair, consisting of aBlack and White wire pair, shall be leftas a spare and un-connected. Thecopper drain wire shall also be leftdisconnected.

To the center ground terminal in theSurge Arrestor Box - connect one end ofthe #10 gauge bare copper ground wire.Route this wire out the bottom of thebox, underground out to the valve boxand connect it to the ground rod using abrass clamp. Keep this ground wire asshort and as straight as possible with NOsharp bends or “kinks”.

For connections and wiring at theWeather Station, refer to Section 5.0 ofthis manual.




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FIGURE 21 - INSTALLATION AT CENTRAL COMPUTER FOR DIRECT CONNECTED WEATHER STATION



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MODEL JR - PH ~ Phone Connected:


SUPPLIED COMPONENTS

(1) Telephone Patch Cable(2) 25 Foot #10 Gauge Ground Wire

(1) Surge Arrestor Box

INSTALLATION

Furnish and install a Hayes Compatible -9600 baud modem. Using the ribboncable that comes with the modemconnect one end to the RS232C cableconnector on the Modem. Connect theother end of this ribbon cable to theserial port of the computer. Use a 9-pinto 25-pin adapter if required.

Plug the “Plug-In” type transformer, thathas been supplied with the modem, in toan 120 VAC electrical outlet.

Surge protection, for protection againstsurges coming in on the telephone lines,is built into the Weather Station. Inaddition the telephone company alsofurnishes surge protection on their lines.Therefore no additional surge protectionis required upon installation of theWeather Station.

STANDARD INSTALLATION METHOD

Taking the telephone patch cable,connect the WHITE (“TIP”) wire, ofthis cable, to the “Tip” line of a piece ofunderground telephone cable. Connectthe BLACK (“Ring”) wire, of this patchcable, to the “Ring” line of this piece ofunderground telephone cable.

Route this piece of direct burialtelephone cable, out of the building,under ground and out to the valve box,located just outside the building. In thevalve box connect the “TIP” wire (white)to the WHITE “TIP” wire of the directburial underground telephone cableinstalled by the telephone company.Connect the “RING” wire (black) to theBLACK “RING” wire of the directburial underground telephone cableinstalled by the telephone company.

REFER TO NEXT PAGE FORFIGURE 22



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FIGURE 22 - INSTALLATION AT CENTRAL COMPUTER FORTELEPHONE CONNECTED WEATHER STATION



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11.0 MAINTENANCE & TROUBLESHOOTING

GENERAL MAINTENANCE:

Proper maintenance of weather stationcomponents is essential to obtainaccurate data. Equipment must be ingood operating condition, whichrequires a program of regular inspectionand maintenance. Routine and simplemaintenance can be accomplished by theperson in charge of the weather station.More difficult maintenance such assensor calibration, sensor performancetesting (i.e., bearing torque), and sensorcomponent replacement, generallyrequires a skilled technician, or that theinstrument be sent to CampbellScientific for repair or updating.Contact your local Rain Bird distributorfor instructions.

A station log should be maintained foreach weather station that includes serialnumbers, dates that the site was visitedand maintenance that was performed.

INSTRUMENTATIONMAINTENANCE:

The instrumentation requires a minimumof routine maintenance. A fewpreventative maintenance steps willoptimize battery life and decrease thechances of datalogger failure.

BATTERIES:

RECHARGEABLE

Rechargeable power supplies should beconnected to an AC transformer orunregulated solar panel at all times.

Be aware of battery voltage thatconsistently decreases over time, whichindicates a failure in the chargingcircuitry.

DESICCANT:

Enclosure humidity is monitored in theEnclosure. Change the desiccant packswhen the enclosure RH exceeds 35%.The RH chip should be changed every 5to 8 years.

SENSOR MAINTENANCE:

Sen0sor maintenance should beperformed at regular intervals,depending on the desired accuracy andthe conditions of use. A suggestedmaintenance schedule is outlined below.

1 Week -

• Visually inspect the station and allsensors. Look for any damage anddebris that may disturb sensorreadings.

• Check the pyranometer for level andcontamination. Gently clean with asoft bristle brush, if needed.

• Check and Clean the Tipping BucketRain Gage, especially the bucketscreen and the small funnel outlet.

To check accuracy of the rain gage -16 ounces of fluid is equal to 1” ofrainfall. Fluid must be poured intothe gage VERY SLOWLY to get anaccurate bucket tipping count.



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1 Month -

• Check the temperature/relativehumidity sensor for contamination.

6 Months -

• Clean the temperature/relativehumidity sensor.

• Check battery by disconnecting theAC Power and allow it to stabilizefor at least 2 hours. Then check thevoltage. Reconnect battery to ACPower.

1 Year -

• Replace the RH chip if necessary.

2 Years -

• Calibrate the Pyranometer (somesuggest yearly).

• Replace RH chip in Air Temp/RHSensor.

• Calibrate the Tipping Bucket RainGage. To check accuracy of the raingage - 16 ounces of fluid is equalto 1” of rainfall. Fluid must bepoured into the gage VERYSLOWLY to get an accurate buckettipping count.

4 - 5 Years -

• Replace sensor cables as requires.

General Maintenance

• An occasional cleaning of the glasson the solar panel will improve itsefficiency.

• Check sensor leads and cables forcracking, deterioration, properrouting and strain relief.

• Check the tower for structuraldamage, proper alignment and forlevel/plumb.



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SENSOR MAINTENANCE

RAIN GAUGE

Inspect and clean every two to threemonths - removing leaves, debris, etc.In extreme environmental conditions itmay be necessary to do this on aMONTHLY basis.

• Check that the tipping mechanismmoves freely and that it registers0.01 inches per tip.

• Check and Re-Level the RainBucket, if necessary.

• Calibrate the Rain Gage every 2years.

Calibrating the Rain Bucket:

• Secure a metal can that will hold atleast one quart of water.

• Punch a VERY SMALL HOLE inthe bottom of the can.

• Place the can in the top of the funnel,of the Rain Bucket, and pour 16 fluidounces (1 pint) of water into the can.

• If it takes LESS than 45 minutes forthis water to run out, the hole in thecan is TOO LARGE.

• One hundred (100) tips plus or minusthree tips should occur and registerfrom 0.97 inches to 1.03 inches.(0.01 inches per each tip).

Adjusting screws are located on thebottom of the Rain Bucket, adjacent to

the large center drain hole. Adjust bothscrews the same number of turns orpartial turns. Rotation clockwiseincreases the number of tips per 16ounces of water, counter clockwiserotation decreases the number of tips per16 ounces of water. One half turn ofboth screws causes a 2% to 3% change.

• Check and Re-Level the Rain Bucketlid.

Factory Calibration is available throughyour Rain Bird Distributor.

Suggestions:Devices for dripping water are availablethrough a chemistry equipment supplyhouse.

In order to see the 100 tips, configure aFAKE weather station within theweather software, to use for this testing.Drip the water and then do an uploadusing the new test configuration to seethe number of tips (0.01 inches = 1 tip).

CAUTION ! Be sure to disable anyAutomatic Uploads, since the 100 tipswill contaminate the every day weatherdata.

After the calibration is complete, resetthe datalogger by removing the powerand the battery connections in theEnclosure. Contact Campbell Scientificfor further instructions. You will haveto reset the time of day and year in thedatalogger by up loading one day of data(#6 from the Weather Main Menu). The7 days of data that are stored in thedatalogger will be lost when youdisconnect the power, so be sure to havedone an upload before you begin thecalibration process.



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SOLAR SENSOR

• Inspect and clean the Solar Sensor(Pyranometer) every two (2) to three(3)months. It is best cleaned with ablast of clean, dry air or with a softbristle, camel hair brush. Be carefulNOT to scratch the surface of thesensor. DO NOT use Windex,soap or any other cleaning agent asit may scratch or more likely leave afilm on the surface, which willaffect its accuracy.

• In EXTREME environmentalconditions it may be necessary toclean the Solar Radiation Sensor(Pyranometer) on a monthly basis.

• Be sure the DRAIN hole in the sideof the sensor housing near the top, isOPEN and free of debris.

• Re-Calibration of the Solar RadiationSensor (Pyranometer) should be doneevery two (2) years. Return thesensor, through your Rain BirdDistributor, for calibration.

WIND SENSOR

• Inspect bearings and operation of theWind Sensor (wind speed and winddirection) on a regular basis, at leastonce a year. They should movefreely and react to a wind speed of 2to 3 mph.

The bearings have a life expectancy of 3to 5 years, except in very high wind

areas, where their life may only be 1year.

• The bearings can only be replaced bythe factory and therefore need to bereturned to the factory through yourlocal Rain Bird Distributor.

Checking the bearings of the 034AWind Sensor.

• Remove the Wind Sensor from theWeather Station cross-arm, byremoving the set screw that issecuring the sensor in the mountingshaft and raising the sensor up andout of the mounting shaft.

• Hold the Wind Sensor in a horizontalposition (with one of the wind speedcups “down” toward the ground).

• On one of the cups hang an ordinarypaper clip (0.5 gm weight) on theouter edge of one of the cups.

• Position this cup in the “up” positionand release. The cup should rotatedownward. Failure to rotateindicates the bearings needreplacement.

RELATIVE HUMIDITY SENSOR

• The life of the RH chip is dependentupon air quality in your area. As aGeneral Rule the RH chip should bereplaced EVERY 2 YEARS, ifnecessary.

• In extreme environmental conditions,the RH chip may need to be replacedevery year.



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• The best time to change the chip is atthe beginning of the most criticaltime for watering (spring and fall inthe desert areas).

• Clean the screen, on the tip of theRH chip enclosure, every six (6)months more often, if required. Ifthe screen gets dirty quickly, thiswill reflect how often the chip willneed to be replaced.

TEMPERATURE SENSOR

• Inspect and clean, at least every 2 to3 months and more often in extremeenvironmental conditions.CAUTIONBe careful of the thermister, as it isvery delicate.

• Carefully clean insects and debrisfrom the temperature probe.

• The temperature probe can NOT becalibrated, so if the readings arepoor the complete probe must bereplaced.

• After several years thetemperature/RH sensor may becomecorroded and should be replaced.

NOTE ! Water will affect thetemperature readings, so be sure nodirect water is hitting the weather stationfrom sprinklers in the area.

SEAL OF ET ENCLOSURE

The seal on the panel assembly of theEnclosure forms the seal between theEnclosure cover and the Enclosure backpanel.

• This seal should be inspected on aregular basis, looking for cracks,hardening of the foam rubber and/orloosening from the back panelassembly.

• Any time the Enclosure is opened,upon closing it the desiccant packshould be replaced with a newdesiccant pack.

• At least once a year the desiccantpack should be replaced with a newpack.

• The Enclosure internal moistureshould be monitored. The desiccantpack maintains a low humidity in theenclosure an minimizes the chance ofcondensation on the datalogger andother electronic components.

• The desiccant pack should bechanged when the internal Enclosurehumidity sensor measures 35% orhigher.

• If the moisture level gets too high theEnclosure should be opened anddried out. The desiccant pack needsto be replace with a new pack.



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• All parts should be dried with aclean, dry cloth and componentsinspected for corrosion.

• When replacing the cover on theEnclosure, place the cover top intothe top of the Enclosure and be surethe cover is properly engaging in thetabs at the top of the Enclosure.Gently close the cover and secure itwith the latch at the bottom. Be surethe latch hasp is securely latched, askeeping out moisture, is dependentupon a tight seal between theEnclosure back panel and the cover,provided by the molded rubber sealon the Enclosure back panel.

BATTERY CHECK

• At least TWICE (2 times) a year theAC power wires to the chargershould be disconnected to allow thestation to operate off the batterieswithout the charger in operation.

• Check the battery under theseconditions to get an accurate actualbattery voltage level.

• Allow 2 hours, after the battery ACrecharge power has beendisconnected, for the battery todissipate high voltage level beforechecking the voltage.

CAUTION ! Be sure to RE-CONNECTthe battery charger and/or power wires tothe weather station after checking thebattery voltage.

• The 16 VAC power or the solarpanel power should be connected tothe weather station at all other times.

SENSOR TESTING

At least once a year, or whenever sensorfailure is suspected, the sensors listedbelow should be checked with avolt/ohm meter for ohm resistance.

• Wind Sensor - Wind Speed(Anemometer) sensor

• Wind Sensor - Wind Direction VaneSensor.

• Rain Gage Tipping Bucket

• Solar Radiation Sensor -Pyranometer.

All sensors that are to be checked,EXCEPT the Rain Gage, should have ameasurable resistance. INFINITEresistance indicates an OPEN circuit.Any sensor with an open circuit needs tobe repaired or replaced.

WIND SPEED SENSOR



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Refer to schematic wiring diagram -located in the Appendix - FIGURE 29

• Measure the resistance from P1 to G(pins 3 to 5) of the Wind SpeedSensor. Slowly turn the wind speedcup. The resistance should varyfrom infinite to less than 1 OHM asthe reed switch closes in theanemometer.

WIND DIRECTION


• The Wind Direction sensor varies inits resistance as the vane turns.With the OHM meter connected toE2 and 2H (pins #1 & #2) theresistance should vary from 11KOHMS to 21K OHMS.

• If infinite resistance is measured,then the wiper in the potentiometer ismost likely damaged and the sensorneeds to be repaired.

• With the OHM meter connected to2H & AG (pins #2 & #4) theresistance should vary from 1K to11K OHMS with change in winddirection. If infinite resistance ismeasured then the potentiometer isbad and should be replaced.

SOLAR RADIATION SENSORPYRANOMETER

Refer to schematic wiring diagram -

located in the Appendix - FIGURE 30

• The Solar Radiation Sensor(Pyranometer) should measurebetween 40 OHMS and 90.2 OHMS,when checked with an Ohm meterbetween 3H & 3L (pins #1 & #2).

• Set meter for lowest DC millivolts (avery sensitive meter is required) andmeasure from 3H to 3L (pins #1 &#2). The small voltage should varywith variation in light intensity.Place your hand over the sensor -should read 0 VDC.

TIPPING BUCKET RAIN GAGE


• The Rain Gage has a reed switch thatcloses as the tipping bucketmechanism “tips”. Connect theOHM meter across P2 & G (pins #3& #5) and should read infiniteOHMS. When bucket mechanism is“tipped” - should then get less than 1OHM.

• If the bucket tipping mechanism isworking correctly you should read

+5 Volts DC with the meter set at DCvolts and connected across the reedswitch, while sensor is plugged intothe Weather Station. When the bucketis “tipped” the reed switch closes andyou should have 0VDC. There is

continuous low voltage going throughthis reed switch, except as it “tips” atwhich time the +5 Volts DC isshorted, and thus there is a possibility



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of corrosion build up on the switchover time.

• The reed switch is easily replacedand the parts are available from yourlocal Rain Bird Distributor.

TEMPERATURE AND RELATIVE HUMIDITY SENSOR


• Set the meter to DC volts and checkacross pins #4 & #6 for 12VDC.

DO NOT connect an OHM meter acrossthe RH chip or damage may occur to theRH chip. If you are experiencingproblems with the temperature andrelative humidity probe - determine thefollowing:

• Are both the temperature andhumidity readings “bad” ?

• Is just the temperature reading“bad”?

• Is the RH reading “bad” ?

• If just the RH readings are “bad” -then the RH chip most likely needsto be replaced. New RH chips, for

replacement, are available from yourlocal Rain Bird Distributor.

AIR TEMPERATURE PROBE ( ON REDUCED SET STATION ONLY )


• Set meter to OHMs and measurefrom E1 to 1H (pins #3 to #1) shouldread a minimum of 249K OHMS.Colder temperatures result in higherresistances.

• With meter on OHMS measure from1H to AG (pins #1 to #5). Shouldhave a fixed reading of 1K OHMSresistance.

• With meter on OHMS measure fromE1 to 1L (pins #3 to #2) should reada minimum of 249K OHMS.Colder temperatures result in higherresistances.

• With meter on OHMS measure from1L to AG (pins #2 to #5). Shouldhave a fixed reading of 1K OHMSresistance.

TROUBLESHOOTING:

The following information is for trouble-shooting the weather station only.



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ISOLATING THE PROBLEM

The recommended approach to trouble-shooting the weather station is to dividethe system into three (3) sections, theweather station itself, the commun-ication path or network and the devicefor communication (computer hookup).Isolate these sections and test each oneto find the problem.

CHECKING THE WEATHERSTATION:

Check the weather station by using theML-10-KD keyboard display. If theML-10-KD is not available, you mayalso use a laptop computer along with aserial cable, as shown in FIGURE 25under “Using a Laptop Computer”.

USING the ML-10-KD KEYBOARDDISPLAY

Connect the keyboard display to theSerial I/O connector on the back of theET Enclosure behind the cable cover.Refer to FIGURE 24 below.

Remove the cable cover. Remove thecap from the Serial I/O connector andplug the keyboard display cable into theconnector.

FIGURE 23 - USING THE ML-10-KD KEYBOARD DISPLAY

With the Keyboard display plugged intothe Serial I/O connector on the back ofthe ET Enclosure, there should bepower to the I/O connector and now tothe keyboard display with the displaynow being active.

Enter [*6] on the keyboard keypad.Then press [A] to advance to the firstlocation (location #1) which is theBattery Voltage. You can ADVANCEto each of the next locations by pressingthe letter [A] key. Pressing the letter[B] key will BACK-UP to the previouslocation. By entering [*0] you can leavethe ML-10-KD in a “low energy mode”.

The location values are not important atthis time, as long as values are present.

After looking at all the locations neededbe sure to do a [*0] to place the micrologger in a low energy mode to conservebattery charge.



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DATALOGGERLOCATION TABLE

Location Reading Normal Range

1 = Battery Voltage ~ 12.9 to 14.2 Volts

2 = Air Temp. C ~ close to air temp

3 = Relative Humidity ~ 0 to 100%

4 = Wind Run ~ Total Wind

5 = Solar Radation ~ 0 to 1.2 kW m-2

6 = Rain Fall ~ 0 to 2 Inches

7 = Wind Direction ~ 0 to 359 degrees

8 = Air Temperature ~ F degrees

9 = RH2 ~ 0 to 100%

10 = Wind Speed ~ MPH

13 = Enclosure RH ~ -40 degree to + 50degree C or 10%

to 30% when sealed for several hours.

TROUBLESHOOTING PROBLEMS

No display on the ML-10-KD keyboard.(If there is display but NO response toinput on the keyboard - continue with thenext diagnostic problem below.)

If you see NO display on the keyboardthen there is NO power output from thedatalogger of the weather station.

Pins 1 and 2 of the Serial I/O connectorshould give +5 Volts DC.

If NO voltage is found - then check forincoming power to the weather station -starting at the transformer check for 110volts AC power to the transformer.

Check for +16 Volts AC coming fromthe secondary side of the transformer.

Check for +16 Volts AC at the two (2)terminals marked “CHG” on the panel ofthe ET Enclosure. (Refer to FIGURE 9for location of +16VAC terminals).

If you have power all the way to thedatalogger PC board - then you mustreplace the datalogger PC board andhave the original datalogger PC boardrepaired.

No response using the keypad and/orerroneous letters in the display.



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(If still NO response to keypad input -then continue with the next diagnosticproblem below.)

Check keypad response after each of thefollowing steps:

• Make sure the battery has beeninstalled.

• Use a voltmeter to measure thevoltage on the 12V and G terminals;the voltage must be between 9.6 and16 VDC.

• Disconnect any communications orstorage peripherals from thedatalogger.

• Enter [*] and wait a short time, atleast two (2) minutes for thedatalogger to see the keyboard - youshould get 00:00 or some othercharacters on the display. Enter a[*0] and you should get LOG 1.

Continue with [*6] followed byentering [A] to advance to the nextlocation. Continue to press [A] tocheck ALL locations of thedatalogger.

• If still no response to keypad input -then continue with the nextdiagnostic problem below.

No response from datalogger throughSC32A or modem peripheral.

At the datalogger:

• Make sure the battery has beeninstalled.

• Use a voltmeter to measure thevoltage on the 12V and G terminals;the voltage must be between 9.6 and16 VDC.

• Make sure the datalogger is dis-connected from the modem.

At the computer:

• Make sure the Station File isconfigured correctly.

• Check the cable(s) between the serialport and the modem. If cables arenot those furnished with the weatherstation, then check for the followingconfiguration using an ohm meter:

25-pin serial port:

computer endmodem end

2 23 37 720 20

9-pin serial port

computer end modem end

2 33 3



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4 205 7

• Make sure the modem is properlyconfigured and cabled.

If still no response, contact your localRain Bird distributor.

-99999 Displayed in an input location.

• Make sure the battery voltage isbetween 9.6 and 16 VDC.

• Make sure the Range parameter inthe measurement instruction coversthe full scale voltage output by thesensor.

Unreasonable results displayed in aninput location.

• Inspect the sensor for damage and/orcontamination.

• Make sure the sensor is properlywired to the datalogger.

• Check the multiplier and offsetparameters in the measurementinstruction.

6999 or 99999 stored in final storage.

Final Storage format limitations areexceeded (no number larger than 6999 inlow resolution, or 99999 in highresolution is stored). Change thedatalogger program.

USING A LAPTOP COMPUTER

When a Laptop computer is being usedto check the weather station it isnecessary to use a Serial cable betweenthe computer and the weather station, asconfigured in FIGURE 24 shown below.

CAUTION ! Before “plugging” theserial cable and computer into the SerialI/O connector on the back panel of theEnclosure - make certain that you havedisconnected the 9-pin ribbon cable fromthe Short Haul Modem or the PhoneModem. If you fail to do so, it is ahigh possibility that you will damage themodem.

FIGURE 24 - CONFIGURATION OF SERIAL CABLE

• Connect the Laptop computer, usingthe serial cable as shown in FIGURE25, to the Serial I/O connector on

the back panel of the Enclosure - thesame as shown for the KeyboardDisplay in FIGURE 24.



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• Start-Up the Weather Software andset the configuration up for theproper communication port.

• Be sure a direct connect weatherstation has been configured.

• Enter a capital [W] from the mainmenu.

• Enter the security code [6275].

• Choose a direct connect WeatherStation to monitor and the screenwill go “BLANK”.

• Press the [ENTER] key until you seean (*).

• Enter [7240L].

• Enter [7H].

• Enter [*6].

• [ENTER] [ENTER] - Continue to[ENTER] and this will give you allthe data locations and the currentreadings or each.

• Enter [* ] to put the datalogger in alow energy mode.

CHECKING THECOMMUNICATIONS

WIRE PATH:

Before initially connecting a directconnect or phone line weather station,or when troubleshooting the weatherstation and the communication wiring issuspect, check the communication wiresfor their integrity.

LOOP RESISTANCE

Connect the pair of wires, you will bechecking, together at the far end. Usinga volt/ohm meter, measure across thewire loop. A “GOOD” wire path hasless than 600 OHMS resistance acrossthe loop.

GROUND RESISTANCE

Disconnect the communication wires atthe MSP-1 pipe surge arrestor, locatedat the Weather Station. Using avolt/ohm meter, set the dial to R x 1Kand measure from each wire to earthground. A “GOOD” wire path has ahigh resistance to earth ground, of atleast 750,000 OHMS or greater.

A “WS-PRO-SH” DIRECTCONNECT WEATHER STATION

Weather Station will not answer.

Test the wire path using a known

“Good” RAD SRM-5A Short HaulModem.



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First: Check that the RAD Short HaulModem, at the central computerlocation, is working correctly.This can be easily done by usingthe following method.

• Jumper the output terminals ofthe RAD SRM-5A Short HaulModem, located at the computer,as shown in FIGURE 26 below.

• Using a working (“Good”) RADSRM-5A Short Haul Modemconnect the communication wirestogether at the weather stationend as shown in FIGURE 26below.

• With the Rain Bird WeatherSoftware, go to the Main Menu

and set the “capital lock” on thekeyboard of the computer.

• Be sure to configure a direct connectweather station.

• Press a capital [W] from the MainMenu screen.

• If a security number is asked for use[6275].

• Choose a direct connect station andthe screen will go “BLANK”.

• Assuming you have connected theoutput terminals of the modem asshown in FIGURE 25 below, whatyou type will be echoed back to thecomputer screen. Testing the shorthaul modem in this way will verifythat it is working properly. If youdo not see the characters, that youtype, on the screen then the ShortHaul Modem has a problem or theCOM port and needs to be replaced.

FIGURE 25 - TEST OF SHORT HAUL MODEM



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Second: After having determined, with the test above that the RAD modem

at the computer is “Good” - youcan then check to see if thecommunication path, between thecomputer and the weather station is“Good”.

• Re-connect the fieldcommunication wires to the RADmodem output terminals, of theRAD modem at the centralcomputer location.

• At the Weather Station, disconnectthe communication wires from theMSP-1 pipe surge arrestors and tiethe wires together as shown inFIGURE 26 below.

• With the Rain Bird WeatherSoftware, go to the Main Menu andset the “capital lock” on the keyboardof the computer.





• Assuming you have connected thecommunication wires correctly at theweather station end, as shown inFIGURE 26 below, what you type atthe computer will be echoed back tothe computer screen. Testing in thisway will verify that thecommunication wiring is “Good”. Ifyou so not see the characters on thescreen, that you have typed, thenyou know that there is a problemwith the communication wiring.

NOTE ! Remember that you have a“spare” pair of communication wires inthe Belden #9883 cable. Using thisspare pair substitute it for one of theother pairs and test again. If it is notthis pair that are “bad” then substitutethe “spare” pair for the other pair andtest again. In this way you should beable to determine which pair are “bad”and use the “spare” pair in their place.

FIGURE 26 - TEST OF COMMUNICATION WIRES



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A “WS-PRO-PH” PHONECONNECT WEATHER STATION

Weather Station will not answer.• Check the weather station for

operation on it’s own to be sure it isfunctioning properly. This willverify the proper voltage coming intothe weather station and also if thedatalogger checks out O.K.

• Connect a telephone to the phoneline at the weather station and callout, or have someone call in. Listenfor any noise on the line. Refer toNOTE below.

NOTE ! A phone line going to thecomputer or to the weather station itselfMUST BE DATA QUALITY. You cantalk over a phone line that will NOTallow data communication.. Listen forany fuzzy noises and any disturbance atall. You must be sure the phone line is“Good”. Time and time again we haveset up stations and the phone line is NOTgood enough for communication. Makesure the phone company knows this willbe for data communication. HavePhone Company check line ALL the wayback to the weather station.

• If the station is still not answering,get your volt/ohm meter and measureacross the phone line. It should readapproximately 48 Volts DC, withthe Ring as the positive side and theTip the negative side.

• Have someone call in and thenmeasure the voltage across the phoneline. It should read 90 to 110 Volts

AC. The answer modem switchcircuit requires 40 Volts to activateand allow the signal to pass to thedatalogger.

• The Datalogger detects the ring andraises the modem enable line high(pin 5), to +5 Volts DC. (Measurepin 5 to ground).

CAUTION ! Connect a volt/ohm meterto the phone line only in extreme cases.It is recommended to use FCC approvedequipment only - while measuringcurrent on a telephone line.

USE NO MSP-1, pipe surge arrestoron the telephone communication wires.If an MSP-1 pipe surge arrestor is usedin the line, the Weather Station willusually answer and then hang up rightaway. The MSP-1 is for low voltageapplications and the telephone line isexcited to well over the 50 volt limit ofthe MSP-1 surge arrestor so will shuntthe line to earth ground.

• Test the phone modem, at theweather station by dialing out to theweather station. It is working and isO.K. if you can hear a dial tone andthe dialing. This also verifies thecommunication path and mostmodem settings.

• If telephone line appears to be O.K. -then change the phone modem at theweather station, to a known “Good”phone modem and try again.

• If the station still does not answer,then have the telephone companycheck the phone line again, even if



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it is the fourth time they have beenout.

COMPUTER MODEM ANDCOMMUNICATIONTROUBLESHOOTING:

Weather Software will not commun-icate with the weather station.

• Verify all the wiring, etc., at thecomputer, to the modem, and to thefield.

• Be sure the software is configured tothe correct communication portaccording to the type of MAXIsoftware being used for the system;i.e., MAXI 5, NIMBUS or CIRRUS.If you arrive at weather throughMAXI then the serial port isconfigured through the MAXIsoftware.

• A data line monitor may benecessary to test the output from thecomputer and to verify that the serialport is working O.K. Most timesoutput can be verified, however,with RAD Short Haul Modem or aphone modem. A data line monitorRS-232 Mini-Tester (available atRadio Shack) is a device thatconnects into the line with the serialport and by using lights will showthe status of all the data lines.

• It is important here to check thecommunication serial port of thecomputer and verify that it isfunctioning correctly, just as isrequired when troubleshootingMAXI or MAXICOM.

TESTING THE SHORT HAUL MODEM

For the older weather stations, whichused the RAD SH-6A Short HaulModems and the current “PRO” weatherstations, which use the RAD SRM-5AShort Haul Modems - both of thesemodems can be tested in the samemanner.• With the modem connected to the

computer, jumper the outputterminals of the RAD modem asshown in FIGURE 25.

• With the Rain Bird WeatherSoftware, go to the Main Menu andset the “capital lock” on the keyboardof the computer.





• Assuming you have connected theoutput terminals of the modem asshown in FIGURE 26, what youtype will be echoed back to thecomputer screen. Testing the ShortHaul Modem in this way will verifythat it is working properly. If youdo not see the characters, that youtype, on the screen then the ShortHaul Modem has a problem andneeds to be replaced.

If you have the very old type Short Haulmodem - it should be replaced with the



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newer type RAD SRM-5A modem, if atall possible.

• If the old SH-95C modem is workingproperly you can measure +7 VoltsDC across the (SRC) and the (RET),during a rest period. This is onlywhen the computer is out of theMAXI program and the Weatherprogram. If the computer is runningWeather then the reading will jumpto +15 Volts DC.

• On the old SH-95C modem there is aring button, and the voltage levelwill go up to +15 volts DC when youpush this button, and return to +7Volts DC upon release & when thecommunication cable is disconnectedform the SC95A.

• If these voltages do not exist, thenyou must replace the modem or havethe modem repaired.

TESTING THE PHONE MODEM

If a Hayes Model 1200 or 2400 SmartModem is being used to communicatewith the Weather Station - be sure theswitch settings are as follows:

SW # Setting Function

1 DOWN Ignores DTR

2 UP English word result codes

SW # Setting Function

3 DOWN Result codes sent to computer

4 DOWN Characters not echoed

5 DOWN Auto-Answer disabled

6 DOWN Carrier detect always on

7 UP Single Line RJ11 phone jack

8 DOWN EnablesCommands

9 UP Compatible with Bell 103/212A modems

10 UP Modem Reset when turned on

Test the phone modem by dialing out tothe weather station. It works if you canhear a dial tone and the dialing. Thisverifies the communication path andmost modem settings.

A phone line going to the computer orthe weather station itself must be ofDATA QUALITY . You can talk over aphone line that will not allow datacommunication. Listen for any fuzzynoises and any disturbance at all. If themodem keeps “HANGING UP”, this isan indication of either an incorrectsetting or a bad phone line.



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Appendix

UPGRADING A MODEL “JR”WEATHER STATION TO AMODEL PRO WEATHERSTATION:

The Model JR weather station can beeasily converted to a Model PROweather station by the use of the“Upgrade” kit.

This “Upgrade” kit gives the additionalinstrumentation of a tipping bucket rain

gauge, wind direction indicator andwind speed indicator.

Refer to main section of this manualfor complete details:



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FIGURE 27 - UPGRADE KIT

TYPICAL 3-ROD GROUNDINGGRID:

Grounding grids are required at theCentral equipment location, for theweather station (grounding grid for thecentral equipment may also be used forthe weather station if accessible) and atthe weather station itself.

A typical 3-rod grounding grid shallconsist of three (3) 5/8” diameter x8’-0” long copper clad grounding rods.The rods shall be in a triangulararrangement, if at all possible, witheach rod at least 8’-0” away from anyother rod.(refer to FIGURE 28 below).If it is impossible to arrange the rods in atriangular pattern then they may bearranged in a straight line (althoughNOT as effective) with each rod at least8’-0” from any other rod.

NOTE! If longer than 8’-0” rods areused, then the rods shall be spaced nocloser than the length of the rod fromeach other.

The 3 rods shall be driven into theground with top of rod at least six inches(6”) below the finish grade. The rodsshall be tied together below grade with#10 gauge or larger bare copper wire.The wire shall be attached to the rodusing a brass clamp. A separate brassclamp shall be used for each attachment.

NOTE ! No more than one wire shall beused in any individual clamp. Multiplewires shall NOT be allowed.

Any rod that has a ground wire con-nected to it, coming from the surgearrestor at the equipment or groundingthe equipment, shall have a standard18” x 24” rectangular valve box installedaround the top of the rod. This shallprovide future access to inspect and/ormaintain the MGP-1 grounding plateassembly, MSP-1 pipe surge arrestors,brass clamp and ground wire should thisbe necessary. Any of the other rods inthe grid shall have a standard 6”diameter round valve box installedaround the top of the rod for futureaccess.

Where MSP-1 pipe surge arrestors arerequired on the communication pathwiring, the MSP-1 pipe surge arrestorshall be mounted on an MGP-1grounding plate assembly. The MGP-1grounding plate assembly in turn shall besecurely attached to one of the groundingrods of the 3-rod grounding grid.Attach the MGP-1 to the ground rod that



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is nearest to the equipment, so as tohave a minimum of exposed wirebetween the equipment and the surgearrestor itself.

Use 3M - DBY or DBR Direct Burialsplice kits for ALL wire splices.

GROUND RESISTANCE - With the 3-rod grounding grid we are attempting toget a ground resistance of 5 OHMS orless, if at all possible. Any thing above15 OHMS is of little value forprotection. In order for the surgearrestors to be effective they must beable to discharge to ground rather thanallow the surge to go to the electroniccomponents. Therefore the “HIGHER”the resistance to ground (higher OHMreading) thechance of the surge being shunted toground rather than go to the electroniccomponents. From this you can see thatit is also important to maintain a “GoodGround” at ALL times.

BENTONITE CONTACT: In usinggrounding rods we are depending uponthe “contact” of the surface of the rod tothe soil. The greater the contact thebetter chance we have of obtaining a“good” ground. If you are in a soil typethat you know will not give good surfacecontact with the rod, you may want toconsider drilling a 4” to 6” diameter holein which to place the ground rod. Youcan then back fill around the rod withBentonite or other similar material that isvery dense and in this way increase thecontact of the rod with the soil.

ROCKY CONDITIONS: In areaswhere you are unable to drive a rod or tobore a hole for a rod, you may need toconsider laying the rods horizontal 12

inches or so below the surface on a good6” deep bed of soil or Bentonite. Againrods should be 8’-0” apart and tiedtogether with #10 gauge or larger barecopper wire at both top and bottom ofthe rods to form a grid.

ROCK LAYER: Where a rock layer isfound under a shallow layer of soil, a4’-0” x 4’-0” square piece of sheet steel,3/8” to ½” thick, should be consideredot be laid horizontally on a 4” thick layerof soil or Bentonite over the rock layer.A bolt or short piece of steel rod weldedto the plate will provide a means ofconnection to the steel plate. The plateshould be covered to finish grade withgood top soil.

IMPROVING EARTH GROUNDS:When a grounding grid is first installedyou are unable to get a true OHMsreading, since the rod surface will not bein good contact with the soil. The gridmust be installed for 5 or 6 weeks beforea meaningful reading can be obtained.It is also recommended that the groundsbe checked at least once a year and insevere lightning areas perhaps as often astwo or three times a year.

NOTE ! A good reading CANNOT beobtained with a volt/ohm meter. AMeggar or Vigra-Ground typeinstrument must be used to check theground resistance.

If unsatisfactory readings are obtained,the ground may be improved in one ofthe following ways:

(1) Extend a #6 or larger bare copperbraided wire from one of the rods outacross a fairway and buried aminimum of 12” below the surface.



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Be sure the wire is between rows ofsprinklers and away from otherwires, pipes, etc. as far as possible.This will place the wire in an areathat will be frequently watered andwill increase the surface contact ofthe grounding network.

(2) In the center of the triangle, of the 3-rod grid, install an 8’-0” long pieceof 6” diameter perforated plasticpipe. Top shall be at least 6” belowthe finish grade. Fill this pipe withrock salt, Epson salts, or othersuitable similar material and water itdown. The salt will leach out intothe soil and corrode the surface ofthe rods giving improved and greatersurface contact. Place a 6” diametervalve box cover over the end of thepipe and cover it with soil to finishgrade.

MSP-1 PIPE SURGE ARRESTORS:Each of the pairs of wires in thecommunication path, between thecentral computer and the weather station,

shall be wired through an MSP-1 pipesurge arrestor, at both the computer endand at the weather station end. TheMSP-1 pipe surge arrestors shall belocated as close to the equipment it is toprotect as is practical. The MSP-1 pipesurge arrestors shall be mounted inMGP-1 grounding plate assemblies.

The MSP-1 pipe surge arrestor ismarked, “EQUIP” on one end and“LINE” on the other end. Wheninstalling the MSP-1 be sure that the endmarked “EQUIP” is located “toward theequipment” it is to protect, i.e., computeror weather station. The “LINE” endgoes toward the field.

The Green wire on each end of the MSP-1 pipe surge arrestor shall be attached toone of the grounding screws on theMGP-1 grounding plate assembly.

REFER TO FIGURE 28 ON THE NEXT PAGE



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FIGURE 28 - TYPICAL 3-ROD GROUNDING GRID DETAIL



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FIGURE 29 - TESTING OF WIND SENSOR



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FIGURE 30 - TESTING OF SOLAR RADIATION SENSOR



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FIGURE 31 - TESTING OF RAIN GAGE



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FIGURE 32 - TESTING OF TEMPERATURE/RELATIVE HUMIDITYSENSOR



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FIGURE 33 - TESTING OF AIR TEMPERATURE PROBE

Documents

RAIN BIRD - Campbell Sci · RAIN BIRD Weather Station - Model - PRO INSTALLATION MAINTENANCE AND TROUBLESHOOTING MANUAL November 2001 GT27145B