Various types of Tempsens make temperature Calibration Equipment for calibration of temperature sensors accurately. Temperature sources and master sensors Black body sources, Reference junction units, Dry block Calibrators, Stirred Liquid Baths, Cold Junction Compensation, AUTOCAL,

2. Contents
• What are calibration Equipment?
• Temperature Sources
• Dry block Calibrator
• Stirred liquid bath
• Black Body Source
• Cold junction Compensation
• Reference unit
• AUTOCAL
• Master Sensors

3. 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.

4. Temperature Sources

5. 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.

6. CALsys -15/110
(Peltier Dry Block)
SPECIFICATIONS
Temperature 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

7. 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

8. CALsys 1200
SPECIFICATIONS
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

9. CALsys 1200L
SPECIFICATIONS
Temperature Range : 300 to 1200 Deg C
Temperature resolution : 1 Deg C
Stability : ±0.5 Deg C
Controlling Sensor : Precision PT/RH-PT T/C
Method of Control : Digital self tuned PID Controller
Heating rate : 15 Deg C / Minute
Operating Temperature : 20 to 45 Deg C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 500 (H) x 400 (W) x 490 (D) mm
Block Construction : 37 mm dia with 240 mm depth
Inset Construction : 5 holes of dia 6.5 mm
Special Depth and larger heating volume available on request
Weight : 20 Kg (Approx)

10. CALsys 1200 3Z
SPECIFICATION
Temperature Range : 300 to 1200°C
Temperature Resolution : 1.0°C
Stability : ±0.1°C at 300°C, ±0.2°C at 700° C, ±0.35°C at
1200°C
Redial Uniformity : ±0.35 at 1200°C
Axial Uniformity : ±1.0°C up to 80mm at 1200°C
Controlling Sensor : Precision PT/RH-PT T/C
No. of Zone : Three
Method of Control : Digital self tuned PID Controller
Insert Construction : Dia 37 x 240 mm long
(2X6mm & 2X8 mm holes) of 160mm insertion depth
Time to Reach Max Temp : 1.5 Hrs
Computer Interface : RS - 232
Operating Temperature : 20 to 45°C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 500(H) x 400(W) x 490(D) mm
Weight : Approx 50 Kg

11. CALsys 1500 L
SPECIFICATIONS
Temperature Range : 500 to 1500° C
Temperature resolution : 1.0 ° C
Stability : ±1.0 ° C
Controlling sensor : Precision PT-RH/PT T/C
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, 3.0 KW
Insert vol./Aperture Dia : Dia 37mm X 240mm long with
2X6.0mm & 2X8.0mm or Customized Special Depth
and larger heating volume available on request
Dimensions : 570 (H) x 450 (W) x 520 (D) mm
Weight : 30Kg (Approx.)

12. CALsys 1700L
SPECIFICATIONS
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)

13. 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.

14. CALsys FB 50 to 650°C
SPECIFICATIONS
Temperature Range : 50 to 650° C
Temperature resolution : 0.1° C
Stability : ±0.2° C
Ded bed Stability:- ±0.01° C
Medium : Alumina powder
Controlling Sensor : T/C “K” type
Method of Control : Digital self tuned PID Controller
Heating rate : 10° C / Min
Operating Temperature : 20 to 45° C
Power Requirement : 230 VAC, 3.0 KW
Dimensions : 600(H) x 850(W) x 550(D) mm
Chamber diameter : 150 mm dia with 450 mm depth
Air supply : 4.14 Bar
Weight : 130 Kg

15. Stirred Liquid Bath
Provide 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.

16. CALsys -80/50
SPECIFICATIONS:
Temperature Range : -80 to 50° C
Temperature resolution : 0.1° C
Stability : ±0.07° C
Cooling medium : Methanol + water
Heating medium : Silicon Oil
Time to reach Max. Temperature : 2.0Hr
Access opening : 100mm x 130mm
Depth: 200mm
Controlling Sensor : Precision PRT
Computer Interface : RS 232
Method of Control : Digital self tuned PID Controller
Power Requirement : 230 VAC, 2.0KW
Dimensions : 750mm x 850mm x 650mm
Weight : Approx. 80Kg

17. CALsys -40/50
SPECIFICATIONS
Temp. Range : -40 to 50°C
Stability : ±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°C
Temperature Resolution : 0.1°C
Time to Reach Min. Temp. : 1.5 Hrs
Medium : Methanol
Controlling Sensor : PT-100
Volume : 3 Ltr.
Access Opening : 90 x 90 mm
Depth : 150 mm
Method of control : Digital self tuned PID Controller
Computer Interface : RS - 232
Operating Temperature : 20 to 25°C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 500 x 350 x 450 mm(Approx.)
Weight : 40 Kgs. (Large depth available on custom built
model)

18. CALsys -35/50(THERMOSTAT
TESTING MACHINE WITH PANEL)
SPECIFICATION
Temp. Range : -35 to 50°C
Stability : ±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°C
Temperature Resolution : 0.1°C
Time to Reach Min. Temp. : 2 Hrs
Medium : Methanol
Controlling Sensor : PT-100
Access Opening : 220 x 180 mm
Depth : 250 mm
Method of control : Digital self tuned PID Controller
Computer Interface : RS - 232
Operating Temperature : 20 to 25°C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 750 x 850 x 650 mm
Weight : 80 Kgs. (Large depth available on custom built
model)

19. CALsys -35/200
SPECIFICATIONS
Temperature Range : -35 to 200° C
Temperature resolution : 0.01° C
Stability : ±0.05°C
Cooling Heating Rate : -40/50° C/Hr
Cooling medium : Methanol + water
Heating medium : Silicon Oil
Time to reach Max. Temperature : 1.5 Hr
Access opening : 157mm x 152mm
Depth: 127mm
Controlling Sensor : Precision PRT
Computer Interface : RS 232
Method of Control : Digital self tuned PID
Controller
Power Requirement : 230 VAC, 2.0KW
Dimensions : 540mm x 220mm x 620mm
Weight : Approx. 41 Kg

20. CALsys 120SP
SPECIFICATIONS
Application : 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

21. CALsys 250
SPECIFICATIONS
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

22. CALsys 250SP
SPECIFICATIONS
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
Heating rate : 10° C / Min
Operating Temperature : 20 to 45° C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 700(H) x 550(W) x 550(D) mm
Access Opening : 200mm x 200 mm
Depth : 200mm
Special Stand for hanging up un-even RTD
Weight : 30 Kg

23. 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

24. 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.

25. CALsys 110BB
SPECIFICATIONS
Temperature Range : 10 to 110°C
Temperature Resolution : 0.1°C
Stability : ±0.1°C
Controlling Sensor : Precision PRT
Method of Control : Digital self tuned PID Controller
Emissivity : 0.95 ±0.01
Time to Reach Max Temp : 25 Mins
Computer Interface : RS - 232
Operating Temperature : 20 to 25°C
Power Requirement : 230 VAC, 0.5 KW
Dimensions : 330(H) X 355(W) X 225(D) mm
Cavity : High Emissive Painted Aluminum Plate
Aperture : 80 x 80 mm
Weight : Approx 10 Kg

26. CALsys 500BB
SPECIFICATIONS
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.)

27. CALsys 1200BB
SPECIFICATIONS
Temperature 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.

28. CALsys 1200TBB
SPECIFICATIONS
Dry cum Black body
Temperature Range : 250 to 1200 Deg C
Temperature resolution : 1.0 Deg C
Stability : ±0.4 Deg C
Emissivity (BB): ±0.99
Controlling Sensor : PT/RH- PT T/C
Method of Control : Digital self tuned PID Controller
Operating Temperature. : 20 to 45 Deg C
Power Requirement : 230 VAC, 2.0 KW
Dimensions : 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 long
Weight: Approx 11 Kg

29. CALsys 1500BB
SPECIFICATIONS
Temperature 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.

30. CALsys 1700BB
SPECIFICATIONS
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.)

31. FAST CAL 1200
SPECIFICATIONS
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

32. FAST CAL 2700
SPECIFICATIONS
Temperature Range : 700 to 2700° C
Temperature resolution : 0.1° C
Stability : ±3° C
Controlling Sensor : Digital Pyrometer
Method of Control : Digital self tuned PID Controller
Time to reach Max point : 5 minutes
Operating Temperature : 20 to 45° C
Power Requirement : 440 VAC, 20KW
Power Control: Thyristor
Heater Size: 100x15x3 / 25mm dia x 64mm length
Heating Element: Graphite based strip/ Cavity mode
Computer interface : RS 232
Dimensions : 1200(H) x 1000(W) x 1500(D) mm
Weight : 230 Kg

33. • 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

34. 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

35. CalREF 0
SPECIFICATION:
Operating temperature : 20 - 30 °C
Compensating Temp: 0 °C
Accuracy : +/- 0.03 °C, Errors can be
compensated by adjusting controller
External Sensor : Provision
Stabilization time : 15 Min
Capacity : 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

36. 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

37. AUTOCAL
SPECIFICATION
Automatic Calibration up to 64 thermocouples, RTDs.
Maximum 4 furnace.
High resolution, 6 ½ digit.
Auto reporting as per ISO 17025 standard.

38. 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 : Pt100
Accuracy : 1/10, 1/5, 1/3, 1/2 DIN, Class A
Sheath Material : SS316/ Inconel/Quartz
THERMOCOUPLE : K/N/R/S
Accuracy : Special, Class 1, with option cold
junction compensation
Sheath Material : Inconel/Ceramic (KER 710-
C 799)
AST MP 250/450+
250………1800
600………2700
Pyrometers

39. THANK YOU!
Tempsens Instruments (I) Pvt. Ltd.
B-188 A, Road No. 5, MIA, Madri
Udaipur - 313 003 (Rajasthan) INDIA
Phone : +91-294-3057700
Fax : +91-294-3057750
E-mail : info@tempsens.com
Website : www.tempsens.com
Temperature Sensing, Heating & Cables