Temperature Calibration equipment for Thermcouple, RTDs, and Pyrometers

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

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

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

CALsys 1200SPECIFICATIONS

Stability : ±0.4° C

Controlling Sensor : PT/RH- PT T/C

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

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

Heaters : MoSiO2

Heating rate : 15 Deg C / Minute

Operating Temperature : 20 to 45 Deg C

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

Cooling and heating System: Peltier shell(Thermoelectric coolers)

Time to reach max Temp. : 25 Mins

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

Medium : Silicon Oil

Time to reach Max. temp. : 30 Min

Operating Temperature : 20 to 45 ° C

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

Medium : Silicon Oil

Heating rate : 10° C / Min

Operating Temperature : 20 to 45° C

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

Emissivity: ±0.95

Controlling Sensor: Precision N type T/C

Heating rate : 15 ° C / Minute

Time to reach Max Temp. : 45 Mins

Computer Interfacing : RS 232

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

Emissivity: ±0.99

Controlling Sensor : Precision PT/RH-PT T/C

Heating rate : 15° C / Minute

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

Heaters : Silicon Carbide Spiral Rod Heater

Heating rate : 20 ° C / Minute

Operating Temperature : 20 to 45 ° C

Radiation Cavity : 50 mm Dia. X 300mm long, Conical Aperture

Sighting tube : 37mm±1mm Dia & 140mm depth

Weight : 50 kgs.

Emissivity: ±0.97

Heaters : MoSiO2

Heating rate : 15° C / Minute

Black Body Cavity Aperture : 29 mm Conical Aperture

Weight : 80Kg (Approx.)

FAST CAL 1200SPECIFICATIONS

Stability : ±1° C

Working Temperature: 1500° C

Controlling Sensor : Digital Pyrometer

Time to reach Max point : 30 Sec.

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

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 : info@tempsens.comWebsite : www.tempsens.com

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