Exposure of Technical English( Sencico)

7/31/2019 Exposure of Technical English( Sencico)

1/34

6/12/12

ENGLISHFOR


2/34

6/12/12

THEME: Electronic

TheodolitePENTAX ETH-302

( series 300 )

Surveyors :

Huerta Julian

Huamn Wilber

Navarro Gustavo


3/34

Haga clic para modificar el estilo de subttulo del patrn

6/12/12

Theodolite electronic PENTAX

ETH-302


4/34

6/12/12

Storing and environmentalconditions.


5/34

6/12/12

Battery.

Do not use batteries which have differentremaining capacities.

The four batteries should be on the sametype.


6/34

6/12/12

Transportation.

When transporting, handle the same asfragile and pack the shipping case with

cushioning materials.


7/34

6/12/12

Inspeccion, adjustment andrepair, overhaul.

When not use for extended periods ofhaving been subject to impact or vibration,

be sure to check the instrumentadjustments before using.


8/34

6/12/12 Other.

When cleaning the case or the instrument,do not use any organic solvent. The

surface of plastic parts may dissolve anddeformation and discoloration can accur.Wipe off the dirt with a wet cloth of dilutehousehold detergent.


9/34

6/12/12 Names of parts.


10/34

6/12/12 Names of parts.


11/34


6/12/12

2.1 Display

2. Key Operations and Display

Vertical

angle

V=Zenith0, V%=Slope(VH=Horizontal 0,Vc=Compass)

Horizontal

angleBattery

indicator:


12/34


6/12/12

2.2 Keyboard

[V/%] key

(Switches thedisplay of verticalangle)

[R/L] keyset the

horizontal angle

right and leftrotationalternately )


13/34

6/12/12

[HOLD] key(Pressing twice holds

the horizontal angleshown on the display)

[0SET] key(Pressing twice resetsthe horizontal angle to

0,00,00)[ ] Illumination key(Illuminate LCD paneland the telescopereticle)

[ON/OFF] key (Turnsthe power on and offalternately)


14/34

6/12/12

2.3.1

Power

[ON/OFF]

key

2.3 Function of each key

1

Pressing the

ON/OFF key turns

on the powersupply and themessage

0 SET is

displayed. After

the 0 SET ofvertical angle is

performed,

the Horizontal

and Vertical angle

are displayed andthe instrument


15/34

6/12/12

Error Appears OVER RANGE when thetelescope exceeds 45(100%) in viewing

mode V%.


16/34

6/12/12

2.4.1

Remainingbattery

indicator

2.4 Other Functions

The status of theremaining batterycapacity isdisplayed with

symbolizing thebattery capacity.

Battery full -

operating possible

Operation possibleOperation still

possible Get the battery

ready for a stand

by


17/34

6/12/12

Automatic Power-off function

If there is no key operation for about 30minutes, the power supply isturned off automatically.

This function can be set to NIL by specialkey operation. (Refer to 3.5Setting of automatic power off function


18/34

6/12/12

1) Adjust the tripod legs so that a height suitable for surveying isobtained when the instrument is set on the tripod

2) A Set the tripod and fix the metal shoe firmly into the ground

so thatthe tripod head is as level as possible and centered above the

stationpoint. If the tripod head is disturbed by the action of fixing the

metalshoe into the ground, correct the level by extending or

retracting eachleg of the tripod.

3) Set the instrument on the tripod head; insert the tripod centerscrew

into the instrument bottom plate and tighten firmly.

PREPARATION FOR SURVEYINGSetting up the instrument


19/34

6/12/12

Leveling with the Circular

levelAfter [ Setting up the instrument] is

completed, instrument must be leveledusing the circular vial.1) By rotating any two leveling screws,position the bubble in the center of the vial(See A.) (To adjust the screws at the sametime, turn them in opposite directions.)

2) Adjust the remaining leveling screw, andposition the bubble in the center of the circle(See B)


20/34

6/12/12

Leveling with the Plate level

1) Place the plate vial in parallel with a linejoining any two of the leveling screws. Byrotating two leveling screws in the oppositedirection of each other, position the bubble inthe center of the vial (See A)

2) Rotate the plate vial through 90, positionthe bubble in the center of the vial byoperating the remaining one leveling screw(See

3) Confirm if the bubble stays in the center byrotating the instrument 180.If the bubble moves, repeat procedure 1

and 2.


21/34

6/12/12

Loosen the tripod center screw. Look through theoptical plummet eyepiece, and move the instrumentbottom plate until the reticule center coincides with thestation point. (Take care not to rotate the instrument)

Centering with the optical plummet


22/34

6/12/12

Eyepiece adjustment

focus the telescope eyepiece on thetelescope reticule Remove the telescope lenscap. Point the telescope at a bright object.Rotate the eyepiece completelycounterclockwise. Look through theeyepiece, and rotate the eyepiece clockwiseuntil the reticule appears at its maximum

sharpness.


23/34

6/12/12

sight the object.1) Loosen the telescope clamp screw andhorizontal clamp screw.2) Point the telescope at the object using thecollimator sight.

3) Tighten the telescope clamp screw andhorizontal clamp screw.4) Focus on the object by rotating the focusingring, while looking

through the telescope.5)Accurately align the reticule with the object,using each

Tangent screw.

Object sighting


24/34

6/12/12

Measurement

5.1 Horizontal angle measurement (right)Level the instrument, and after power on set the vertical angle 0 point.

Sight the first object using the horizontal clamp and tangent screw as

well as the telescope clamp and tangent screw.

Press [0SET] twice to set the horizontal angle to 0,00,00

Sight the second object using the horizontal clamp and tangent

screw as well as the telescope clamp and tangent screw.

Read the displayed value (B).


25/34

6/12/12

Horizontal angle measurement(counterclockwise)

Press the [R/L] key to switch the horizontalangle display to

counterclockwise reading (HL).


26/34

6/12/12

Vertical angle measurement

Level the instrument, turn thepower on and set the verticalangle 0 point.

Sight the object A using thehorizontal clamp and tangent

screws as wellas the telescope clamp and

tangent screws.

Factory setting is Zenith 0


27/34

6/12/12

Azimuth calculation

First we locate the north with the compass andput at zero angle and then We targeted

the point you want to calculate the azimuth.


28/34

6/12/12

Inspection and Adjustment


29/34

6/12/12

Instructions on inspection and adjustment

Inspection and adjustment should be doneafter setting the instrument on a tripod or onan adjustment stand. Inspection should be done sequentially from[6.2 Plate vial] to [6.5 Perpendicularity of line

of sight to horizontal axis] Adjustments should be finished withadjustment screws having been tightened andwith firm torque. Do not finish by loosening anadjustment screw.

Repeat inspection after adjustment andconfirm if the adjustment is performedcorrectly. It is recommended that a trained professional

perform adjustments, if possible.


30/34

6/12/12

Perpendicularity of plate vial to vertical axis

AdjustmentCenter the plate vial bubble.Rotate the instrument 180, move the bubble half wayback to the center by operating a leveling screw whichis located parallel with the plate vial.Rotate the vial adjusting screw with the adjusting pin

and position the bubble in the center.Repeat procedure again to confirm.


31/34

6/12/12

Perpendicularity of circular vial to vertical axis

Inspection1. Confirm if the bubble of the circular vial is in the

center after the inspection and adjustment of [6.2Plate vial].

2. No adjustment is necessary if the bubble of thecircular vial is in the center but if not, the followingadjustment is required.

Adjustment1. Move bubble to the center by rotating the bubble

adjusting screws, using the adjusting pin.2. Inspect again.


32/34

6/12/12

Difference of the vertical angle

InspectionSet the vertical angle in Zenith 0 mode

Sight an object (Point P) with the telescope and read

the vertical angle (V correct).

Reverse the telescope and rotate the alidade.

Sight point P again in the reverse position and read the

vertical angle (V reverse).

At this time, when (V correct + V reverse - 360)/2 isless than 15, it is within tolerance. If it shows a larger

value, it needs adjustment - Consult your dealer.


33/34

6/12/12

Optical plummet

AdjustmentRemove the cover of the optical plummet.Mark the point set on the line of sight at each stepof 90 on the white paper and call them A,B, C andD.Join the opposed points (A, C and B, D) with a

straight line, and set intersecting point 0.Turn four optical plummet adjusting screws with theadjusting pin so that the center mark coincideswith the intersection point 0.Repeat procedure again to confirm.Optical plummet adjusting screw.


34/34

6/12/12

THANK YOU

Documents

Exposure of Technical English( Sencico)