PRIMARY FIXED POINT
Fixed point cells are the most accurate devices available for defining a temperature scale. Fixed point cells are designed to realize the liquid-solid equilibrium temperatures of certain high purity metal elements, for calibration of thermometers at ITS-90 fixed points.
Typically, only national metrological institutes provide such kind of calibration facilities, however FARE Labs also has the primary fixed point calibration facility.
We Calibrate SPRTs and other Precision Resistance Thermometers by fixed point cells at the following points:
- Liquid Nitrogen (-196.075 ยฐC)
- Triple Point of Water (0.01ยฐC)
- Freezing Point of Gallium (29.7646ยฐC)
- Freezing Point of Tin (231.928ยฐC)
- Freezing Point of Zinc (419.527ยฐC)
- Freezing Point of Aluminium(660.323ยฐC)
S.N. | Instruments Name | Parameter to be calibrated | Range | DC Voltage, temperature |
1 | PRT, SPRT, SSPRT | Resistance, Temperature | 7 calibration spot -196 ยฐC = BP N2 (5 mK) -38 ยฐC = TP Hg (2 mK) 0.01 ยฐC= TP H2O (1.4 mK) 29 ยฐC = MP Ga (2.4 mK) 231 ยฐC = FP Tin (3.6 mK) 419 ยฐC = FP Zn (4.3 mK) 660 ยฐC = FP Al (5.7 mK) | Fluke Fix Point Bath Fluke SPRT, Fluke Super Thermometer |
2 | Standard Thermocouple | DC Voltage, Temerature | 0 to 1554 ยฐC (0.25 C to 1.2 C) | Fluke SPRT, Fluke S Type Thermocouple, Fluke Super DAQ Fluke High Precision Dry Well Fluke Horizontal Temperature Furnace Carbollite Furnace |
3 | Liquid In Glass Thermometer / Min Max Thermometer / Dry Wet Bulb Thermometer / Sling Psychrometer / IP Thermometer | Temperature by Comparison method | -80 ยฐC to 300 ยฐC | Fluke SPRT Fluke Super Thermometer Alcohol Bath Water Bath Oil Bath |
4 | High-temperature furnace ,Muffle, Temperature Calibrator, Dry Block Calibrator | Temperature by Comparison method | -180 ยฐC to 660 ยฐC (0.02 C) | Fluke SPRT Fluke Super Thermometer Fluke Ultra Cooling Dry Well Bath Isotech Bath (-180 C to – 80 C Variable) |
5 | Thermocouples with and Without Indicator | Temperature by Comparison method | 0 to 1554 ยฐC | Fluke SPRT, S Type Thermocouple, Fluke Super DAQ Fluke High Precision Dry Well Fluke Horizontal Temperature Furnace Carbollite Furnace |
6 | IRThermometer /IRGun/ Radiation Pyrometer / Thermal Imager | Temperature by Comparison method | -32 ยฐC to 2900 ยฐC | IR-Calibrator Spherical Saturn High-Temperature Balck Body Source (Lumascense) Standard Pyrometer Fluke PRT Fluke 6ยฝ Digit DMM |
7 | Temperature Source(Stability and Uniformity) | Environment Chamber, Furnace, Walk in Chiller, BOD, Incubator, Oven, Refrigerator, Deep Freezer, Liquid Bath, Water Bath, | -180 ยฐC to 660 ยฐC | Fluke SSPRT (2 nos) Fluke Super Thermometer |
Liquid Bath, oven, water bath, Temperature Calibrator, Dry Block Calibrator | 100 ยฐC to 1200 ยฐC | Two -S/N type T/C Fluke 6ยฝ Digit DMM Fluke Super DAQ | ||
8 | Indicator of Baths/ Dry Block Calibrators/ Furnace/ Chambers / Ovens / Furnace / Refrigerator / Deep Freezer / Liquid Bath / Water Bath | Temperature by Comparison method – Single Sensor | -180 ยฐC to 1200 ยฐC | Fluke SSPRT S/RType T/C, Fluke 6ยฝ Digit DMM Fluke DAQ |
9 | Mapping of Temperature sources | light chamber Standarf LUX meter | -80 ยฐC to 1200 ยฐC | Fluke DAQ, RTD, Thermocouple (9 / 15 sensors) |
10 | Black body Source/ IRThermal Source/ Black body Cavity /Emissivity 0.95 | Single point, Comparison method | -32 ยฐC to 2900 ยฐC | Transfer Standard IR Pyrometers Fluke PRT Fluke 6ยฝ Digit DMM |
11 | I RThermometer /I R Gun/ Radiation Pyrometer / Thermal Imager | Temperature, Comparison method | -15 ยฐC to 2900 ยฐC | IR-Calibrator Standard Pyrometer Fluke PRT Fluke 6ยฝ Digit DMM |
12 | Humidity Chamber (Display of Chamber ) | Humidity Chamber/ Environmental Chamber / Humidity Generator / Conditioning Chamber | (10 to 95)%RH@25โฐC (10 to 50)โฐC@50%RH | Fluke Digital Thermohygrometer |
13 | Humidity Chamber (Mapping of Chamber ) | Humidity Chamber/ Environmental Chamber / Humidity Generator / Conditioning Chamber | (10 to 95)%RH@25โฐC (10 to 50)โฐC@50%RH | Migo Datalogger |
14 | Hygrometer/ Humidity Meter/ Digital Hygrometer / Thermo-Hygrometer/ Data Logger | Relative Humidity @ 25 C Temperature @ 50 % RH | (10 to 95)%RH@25โฐC (10 to 50)โฐC@50%RH | Fluke Digital Thermohygrometer Fluke Humidity Chamber |
15 | IR-Calibrator Spherical Saturn High Temperature Balck Body Source (Lumascense) Standard Pyrometer Fluke PRT Fluke 6ยฝ Digit DMM | Optical (Lux) | 1 lux to 19500 lux | Digital Lux Meter / LightMeter / Illuminance meter |