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Contents• What are calibration Equipment?
• Temperature Sources
• Dry block Calibrator
• Stirred liquid bath
• Black Body Source
• Cold junction Compensation
• Reference unit
• AUTOCAL
• Master Sensors
What are Calibration Equipment?Certain equipment which are used to calibrate the temperature measuring instruments are called temperature calibration equipment.Calibration equipment mainly consist of:
• Temperature sources• Master Sensors.
Accurate Temperature Calibration• Temperature Calibration can be carried out thermally in the case of probes or electrically in
the case of Instrument and it can be performed directly with certified equipment, or indirectly with traceable standards.
• Thermal (Temperature) calibration is achieved by elevating (or depressing) the temperature sensor to a known, controlled temperature and measuring the corresponding change in its associated electrical parameter (voltage or resistance).
• The accurately measured parameters compared with that of a certified reference probe; the absolute difference represents the calibration error. If the sensor is connected to a measuring instrument, the sensor and the instrument combination can be effectively calibrated by this technique.
Temperature Sources
Temperature Sources
Dry Block Calibrator
They are usually reasonable rapid heating and cooling device. The unit consists of a special designed heating block which has located internal holes for the probes. Two types of unit are available; portable units which can be taken on to plant for the on-site calibration and laboratory units to which industrial sensors are brought as required.
CALsys -15/110(Peltier Dry Block)
SPECIFICATIONSTemperature Range: -15 to 110° C
Temperature resolution : 0.1 ° C
Stability : ±0.07 ° C
Controlling Sensor : Precision PRT
Method of Control : Digital self tuned PID Controller
Time to reach max Temp. : 25 Minutes
Power Requirement : 230 VAC, 500W
Dimensions : 300(H) x 170(W) x 188(D) mm
Inset Construction : Dia 24 mm X 120 mm long (3
holes of 6.5mm having 115mm insertion depth)
Weight : Approx. 14 Kg
CALsys 650
SPECIFICATIONS
Temperature Range : 50 to 650° C
Temperature resolution : 0.1° C
Stability : 0.05° C
Controlling Sensor : T/C “N” type
Method of Control : Digital self tuned PID Controller
Cooling time from 650 to 100° C: 75 minutes
Time to reach Max. Temp. : 25min
Power Requirement : 230 VAC, 1.0KW
Inset Construction : 32mm dia ,150mm long with 4 Holes of dia 6.5
mm having 120mm insertion depth
Dimensions : 330(H) x 185(W) x 263(D) mm
Weight : Approx. 8 Kg
CALsys 1200SPECIFICATIONS
Temperature Range : 250 to 1200° C
Temperature resolution : 1.0° C
Stability : ±0.4° C
Controlling Sensor : PT/RH- PT T/C
Method of Control : Digital self tuned PID Controller
Heating Rate : 15° C / Min
Operating Temperature. : 20 to 45° C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 405 (H) x 205(W) x 285(D) mm
Inset Construction : Dia 37 mm X 215 mm long with 2 X
6.0mm & 2 X 8.0mm holes having 160mm insertion
depth
Weight : Approx. 15 Kg
CALsys 1200L
SPECIFICATIONSTemperature Range : 300 to 1200 Deg CTemperature resolution : 1 Deg C Stability : ±0.5 Deg CControlling Sensor : Precision PT/RH-PT T/CMethod of Control : Digital self tuned PID ControllerHeating rate : 15 Deg C / MinuteOperating Temperature : 20 to 45 Deg CPower Requirement : 230 VAC, 2.0 KWDimensions : 500 (H) x 400 (W) x 490 (D) mmBlock Construction : 37 mm dia with 240 mm depthInset Construction : 5 holes of dia 6.5 mmSpecial Depth and larger heating volume available on requestWeight : 20 Kg (Approx)
CALsys 1200 3ZSPECIFICATION
Temperature Range : 300 to 1200°CTemperature Resolution : 1.0°CStability : ±0.1°C at 300°C, ±0.2°C at 700° C, ±0.35°C at 1200°CRedial Uniformity : ±0.35 at 1200°CAxial Uniformity : ±1.0°C up to 80mm at 1200°CControlling Sensor : Precision PT/RH-PT T/CNo. of Zone : ThreeMethod of Control : Digital self tuned PID ControllerInsert Construction : Dia 37 x 240 mm long(2X6mm & 2X8 mm holes) of 160mm insertion depthTime to Reach Max Temp : 1.5 HrsComputer Interface : RS - 232Operating Temperature : 20 to 45°CPower Requirement : 230 VAC, 2.0 KWDimensions : 500(H) x 400(W) x 490(D) mmWeight : Approx 50 Kg
CALsys 1500 L
SPECIFICATIONSTemperature Range : 500 to 1500° CTemperature resolution : 1.0 ° CStability : ±1.0 ° CControlling sensor : Precision PT-RH/PT T/CMethod of Control : Digital self tuned PID ControllerHeaters : Silicon Carbide spiral Rod heaterHeating rate : 20 ° C / MinuteOperating Temperature : 20 to 45 ° CPower Requirement : 230 VAC, 3.0 KWInsert vol./Aperture Dia : Dia 37mm X 240mm long with 2X6.0mm & 2X8.0mm or Customized Special Depth and larger heating volume available on requestDimensions : 570 (H) x 450 (W) x 520 (D) mmWeight : 30Kg (Approx.)
CALsys 1700LSPECIFICATIONS
Temperature Range: 500 to 1700 Deg C
Temperature resolution : 0.1 Deg C
Stability : ±1.5 Deg C
Controlling Sensor : Precision PT-RH/PT TC
Method of Control : Digital self tuned PID Controller
Heaters : MoSiO2
Heating rate : 15 Deg C / Minute
Operating Temperature : 20 to 45 Deg C
Power Requirement : 230 VAC, 2.5 KW
Dimensions : 640 (H) x 400 (W) x 550 (D) mm
Insert Construction : 37 mm X 240mm long with 2 X 6mm & 2
X 2.8 mm holes having insertion depth 225mm
Weight : 80Kg (Approx)
Fluidized Calibration Baths
•The fluidized calibration bath is a unique method of providing closely controlled
temperatures. The bath consists of a very fine mesh aluminum oxide, a heated
chamber into which the medium is placed, and a means for slowly agitating the bath
by introducing a flow of air .
•By careful control of heat input and air flow, temperature of the bath can be
controlled within close limits thereby producing isothermal conditions between the
calibration standard and the test setup.
•Fluidized beds are useful for calibrating over the temperature range from ambient to
700˚ C.
CALsys FB 50 to 650°C
SPECIFICATIONSTemperature Range : 50 to 650° CTemperature resolution : 0.1° C Stability : ±0.2° CDed bed Stability:- ±0.01° CMedium : Alumina powderControlling Sensor : T/C “K” typeMethod of Control : Digital self tuned PID ControllerHeating rate : 10° C / MinOperating Temperature : 20 to 45° CPower Requirement : 230 VAC, 3.0 KWDimensions : 600(H) x 850(W) x 550(D) mmChamber diameter : 150 mm dia with 450 mm depthAir supply : 4.14 BarWeight : 130 Kg
Stirred Liquid BathProvide superior thermal environment for probe immersion as no air gap exist between the probe and the medium. Thermal coupling is therefore much better. Methanol is used for temperature below 50°C and upto -80 °C , water from 10 to 90°C and silicon oil for up to 250°C.
CALsys -80/50
SPECIFICATIONS:Temperature Range : -80 to 50° CTemperature resolution : 0.1° C Stability : ±0.07° CCooling medium : Methanol + water Heating medium : Silicon OilTime to reach Max. Temperature : 2.0HrAccess opening : 100mm x 130mmDepth: 200mmControlling Sensor : Precision PRTComputer Interface : RS 232Method of Control : Digital self tuned PID ControllerPower Requirement : 230 VAC, 2.0KWDimensions : 750mm x 850mm x 650mm Weight : Approx. 80Kg
CALsys -40/50SPECIFICATIONS
Temp. Range : -40 to 50°CStability : ±0.04°C at -40°C (Methanol), ±0.07°C at 0°C (Methanol), ±0.05°C at 50°C (Water)Uniformity : ±0.05°C at -40°C, ±0.09°C at 0°C, ±0.07°C at 50°CTemperature Resolution : 0.1°CTime to Reach Min. Temp. : 1.5 HrsMedium : MethanolControlling Sensor : PT-100Volume : 3 Ltr.Access Opening : 90 x 90 mmDepth : 150 mmMethod of control : Digital self tuned PID ControllerComputer Interface : RS - 232Operating Temperature : 20 to 25°CPower Requirement : 230 VAC, 2.0 KWDimensions : 500 x 350 x 450 mm(Approx.)Weight : 40 Kgs. (Large depth available on custom built model)
CALsys -35/50(THERMOSTAT TESTING MACHINE WITH PANEL)
SPECIFICATIONTemp. Range : -35 to 50°CStability : ±0.04°C at -35°C (Methanol), ±0.07°C at 0°C (Methanol), ±0.05°C at 50°C (Water)Uniformity : ±0.05°C at -35°C, ±0.09°C at 0°C±0.07°C at 50°CTemperature Resolution : 0.1°CTime to Reach Min. Temp. : 2 HrsMedium : MethanolControlling Sensor : PT-100Access Opening : 220 x 180 mmDepth : 250 mmMethod of control : Digital self tuned PID ControllerComputer Interface : RS - 232Operating Temperature : 20 to 25°CPower Requirement : 230 VAC, 2.0 KWDimensions : 750 x 850 x 650 mmWeight : 80 Kgs. (Large depth available on custom built model)
CALsys -35/200
SPECIFICATIONSTemperature Range : -35 to 200° CTemperature resolution : 0.01° C Stability : ±0.05°CCooling Heating Rate : -40/50° C/HrCooling medium : Methanol + water Heating medium : Silicon OilTime to reach Max. Temperature : 1.5 HrAccess opening : 157mm x 152mmDepth: 127mmControlling Sensor : Precision PRTComputer Interface : RS 232Method of Control : Digital self tuned PID ControllerPower Requirement : 230 VAC, 2.0KWDimensions : 540mm x 220mm x 620mm Weight : Approx. 41 Kg
CALsys 120SP
SPECIFICATIONSApplication : Dry cum Liquid bath
Temperature Range : 0 to 120° C
Temperature resolution : 0.1 ° C
Stability : ±0.05° C
Cooling and heating System: Peltier shell(Thermoelectric coolers)
Controlling Sensor : Precision PRT
Method of Control : Digital self tuned PID Controller
Time to reach max Temp. : 25 Mins
Power Requirement : 230 VAC, 0.5 KW
Dimensions : 405 (H) x 190(W) x 270(D) mm
Inset Construction : Dia 28 mm X 100 mm long& 6mm hole 4 Nos.
Weight : Approx 25 Kg
CALsys 250SPECIFICATIONS
Temperature Range : 50 to 250° C
Temperature resolution : 0.1 ° C
Stability : ±0.05° C
Medium : Silicon Oil
Controlling Sensor : Precision PRT
Method of Control : Digital self tuned PID Controller
Time to reach Max. temp. : 30 Min
Operating Temperature : 20 to 45 ° C
Power Requirement : 230 VAC, 1.5 KW
Dimensions :360(H) x 185(W) x 285(D) mm
Chamber diameter : 90mm dia with 140 mm depth
Inset Construction : 6 Holes of 15 mm each
Weight : 10 Kg
CALsys 250SPSPECIFICATIONS
Temperature Range : 50 to 250° CTemperature resolution : 0.1° C Stability : ±0.05° CMedium : Silicon OilControlling Sensor : Precision PRTMethod of Control : Digital self tuned PID ControllerHeating rate : 10° C / MinOperating Temperature : 20 to 45° CPower Requirement : 230 VAC, 2.0 KWDimensions : 700(H) x 550(W) x 550(D) mmAccess Opening : 200mm x 200 mmDepth : 200mmSpecial Stand for hanging up un-even RTD Weight : 30 Kg
CALsys 300SP (Large Depth Oil Bath)
SPECIFICATIONS
Temperature Range : 50 to 250° C
Temperature resolution : 0.01° C
Stability : ±0.01° C
Medium : Silicon Oil
Controlling Sensor : Precision PRT
Method of Control : Digital self tuned PID Controller
Heating rate : 10° C / Min
Operating Temperature : 20 to 45° C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 600(H) x 350(W) x 550(D) mm
Chamber diameter : 150 mm dia with 300 mm depth
Inset Construction : 6 Holes of 15 mm each
Weight : 30 Kg
Black Body Source
Black bodies are reference sources used
for testing infrared systems. They are
required in industry for calibration of
pyrometers, infrared line scanners or
cameras. In laboratory, they are part of
benches for characterization of complex
optronic systems.
CALsys 110BBSPECIFICATIONS
Temperature Range : 10 to 110°CTemperature Resolution : 0.1°CStability : ±0.1°CControlling Sensor : Precision PRTMethod of Control : Digital self tuned PID ControllerEmissivity : 0.95 ±0.01Time to Reach Max Temp : 25 MinsComputer Interface : RS - 232Operating Temperature : 20 to 25°CPower Requirement : 230 VAC, 0.5 KWDimensions : 330(H) X 355(W) X 225(D) mmCavity : High Emissive Painted Aluminum PlateAperture : 80 x 80 mmWeight : Approx 10 Kg
CALsys 500BBSPECIFICATIONS
Temperature Range : 50 to 500° C
Temperature resolution : 0.1 ° C
Stability : ±1.0 ° C
Emissivity: ±0.95
Controlling Sensor: Precision N type T/C
Method of Control : Digital self tuned PID Controller
Heating rate : 15 ° C / Minute
Time to reach Max Temp. : 45 Mins
Computer Interfacing : RS 232
Power Requirement : 230 VAC, 1.0 KW
Black Body Cavity Aperture : 100 mm Dia Anodized
Aluminum Plate with high emissive paint
Weight : 20 Kg (Approx.)
CALsys 1200BB
SPECIFICATIONSTemperature Range : 300 to 1200° C
Temperature resolution : 1.0° C
Stability : ±0.5° C
Emissivity: ±0.99
Controlling Sensor : Precision PT/RH-PT T/C
Method of Control : Digital self tuned PID Controller
Heating rate : 15° C / Minute
Operating Temperature : 20 to 45° C
Power Requirement : 230 VAC, 2.5 KW
Dimensions : 580 (H) x 500 (W) x 675 (D) mm
Radiation Cavity : 50 mm Dia. X 300mm long, Conical Aperture
Sighting tube : 37mm±1mm Dia & 140mm depth
Weight : 50 kgs.
CALsys 1200TBBSPECIFICATIONS
Dry cum Black bodyTemperature Range : 250 to 1200 Deg CTemperature resolution : 1.0 Deg C Stability : ±0.4 Deg CEmissivity (BB): ±0.99Controlling Sensor : PT/RH- PT T/CMethod of Control : Digital self tuned PID ControllerOperating Temperature. : 20 to 45 Deg CPower Requirement : 230 VAC, 2.0 KWDimensions : 200(H) x 350(W) x 200(D) mm Inset Construction (Dry) : Dia 37 mm X 240 mm long with 2 X 6.0mm & 2 X 8.0mm holes Inset Construction (BB): Dia 37 mm X 170 mm longWeight: Approx 11 Kg
CALsys 1500BB
SPECIFICATIONSTemperature Range : 500 to 1500° C
Temperature resolution : 1.0 ° C
Stability : ±1.0 ° C
Controlling Sensor : Precision PT-RH/PT TC
Method of Control : Digital self tuned PID Controller
Heaters : Silicon Carbide Spiral Rod Heater
Heating rate : 20 ° C / Minute
Operating Temperature : 20 to 45 ° C
Power Requirement : 230 VAC, 3.5 KW
Dimensions : 580 (H) x 500 (W) x 675 (D) mm
Radiation Cavity : 50 mm Dia. X 300mm long, Conical Aperture
Sighting tube : 37mm±1mm Dia & 140mm depth
Weight : 50 kgs.
CALsys 1700BBSPECIFICATIONS
Temperature Range : 500 to 1700° C
Temperature resolution : 0.1° C
Stability : ±2.0° C
Emissivity: ±0.97
Controlling Sensor : Precision PT-RH/PT TC
Method of Control : Digital self tuned PID Controller
Heaters : MoSiO2
Heating rate : 15° C / Minute
Operating Temperature : 20 to 45° C
Power Requirement : 230 VAC, 3.0 KW
Dimensions : 640 (H) x 500 (W) x 550 (D) mm
Black Body Cavity Aperture : 29 mm Conical Aperture
Weight : 80Kg (Approx.)
FAST CAL 1200SPECIFICATIONS
Temperature Range : 300 to 1200° C
Temperature resolution : 0.1° C
Stability : ±1° C
Working Temperature: 1500° C
Controlling Sensor : Digital Pyrometer
Method of Control : Digital self tuned PID Controller
Time to reach Max point : 30 Sec.
Operating Temperature : 20 to 45° C
Power Requirement : 230 VAC, 3.0 KW
Power Control: Thyristor
Computer interface: RS 232
Dimensions: 440(H) x 600(W) x 900(D) mm
Weight: 130 Kg
FAST CAL 2700SPECIFICATIONS
Temperature Range : 700 to 2700° CTemperature resolution : 0.1° C Stability : ±3° CControlling Sensor : Digital PyrometerMethod of Control : Digital self tuned PID ControllerTime to reach Max point : 5 minutesOperating Temperature : 20 to 45° CPower Requirement : 440 VAC, 20KWPower Control: ThyristorHeater Size: 100x15x3 / 25mm dia x 64mm lengthHeating Element: Graphite based strip/ Cavity modeComputer interface : RS 232Dimensions : 1200(H) x 1000(W) x 1500(D) mmWeight : 230 Kg
• By connecting any thermocouple to measurement device three dissimilar metal
junction are created in the circuit: the thermocouple junction itself, or hot junction,
and the junction between each lead and the measurement device, or cold junctions.
• These cold junction provide their own thermoelectric voltages that are proportional
to the temperature at the device terminals.
• A technology known as cold junction compensation is therefore used to remove this
unwanted effect.
Cold Junction Compensation
To reduce the uncertainty of cold junction
measurement Reference junction boxes are
used.
A reference junction box terminates the
thermocouple cold end at a known and
constant temperature. This can be 0° or 60° C,
as per user requirement.
The EMF of the reference junction is fixed and
is added on to the output of the thermocouple.
Reference Junction Unit
CalREF 0SPECIFICATION:
Operating temperature : 20 - 30 °CCompensating Temp: 0 °CAccuracy : +/- 0.03 °C, Errors can be
compensated by adjusting controllerExternal Sensor : ProvisionStabilization time : 15 MinCapacity : 20 No (Standard)Input Connection : Miniature panel mounted
female connectors, type's) of thermocouple to be specified.
Output connection : Pre wired Copper Miniature plugs female
Power supply: 230VAC,0.5 KW
CalREF 60
SPECIFICATION
Operating temperature : 20 - 45°C (Standard)
Compensating Temp: 60 °C
Accuracy : ±0.5°C, Errors can be compensated by
adjusting controller setting
Stability : ±0.05°C
Capacity : 24 No (Special)
Resolution : 0.1°C
Dimension : 300mm(H)x200mm(W)x300mm(D)
Weight : 13Kgs
Power Supply : 240 V AC/24 V DC
AUTOCAL
SPECIFICATION
Automatic Calibration up to 64 thermocouples, RTDs.
Maximum 4 furnace.
High resolution, 6 ½ digit.
Auto reporting as per ISO 17025 standard.
Master Sensors
Master sensor is used as a reference sensor in comparison type calibration process.
Master sensor is put in the highly stable temperature zone along with sensor under
calibration, their reading is compared and error is calculated.
Master should have high accuracy, and repeatability and should be recalibrated after
certain period of time (generally time period suggested by calibration Laboratories).
SSPRT : Pt100/Pt25, Temperature range 0 to 661°C
RTD : Pt100Accuracy : 1/10, 1/5, 1/3, 1/2 DIN, Class ASheath Material : SS316/ Inconel/Quartz
THERMOCOUPLE : K/N/R/SAccuracy : Special, Class 1, with option cold junction compensationSheath Material : Inconel/Ceramic (KER 710-C 799)
AST MP 250/450+250………1800600………2700
Pyrometers
THANK YOU!
Tempsens Instruments (I) Pvt. Ltd.B-188 A, Road No. 5, MIA, Madri Udaipur - 313 003 (Rajasthan) INDIAPhone : +91-294-3057700Fax : +91-294-3057750E-mail : [email protected] : www.tempsens.com
Temperature Sensing, Heating & Cables