Thermal Calibration
Thermal Calibration-1
Thermal Calibration-2
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Thermal Calibration

Fixed points are 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.

Lawkim has facility to calibrate SPRT/PRT by primary method (fixed point cell). Apart from Lawkim offer calibration of various sensors, oven, autoclaves, chambers for temperature and humidity parameters and covering range (-) 196°C to +1200°C

We Calibrate SPRT/PRTS/ THERMOCOUPLES by fixed point cell for following points:

• Liquid Nitrogen (-196.075 °C) CMC: 0.0084°C
• Triple Point of Water (0.01°C) CMC: 0.0018°C
• Freezing Point of Indium (156.598°C) CMC: 0.0030°C
• Freezing Point of Tin (231.928°C) CMC: 0.0032°C
• Freezing Point of Zinc (419.527°C) CMC: 0.0046°C
• Freezing Point of Zinc (419.527°C) CMC: 0.0046°C

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    Technical Specification


    Autoclave Calibration

    -40 to 1000°C

    Temperature Calibration by Comparison method

    Dew point Meter Calibration

    -20 to 50°C

    Dew point comparison


    5°C to 50°C and 10 to 90% RH

    Temperature and Humidity by comparison

    Dry Block Furnace Calibration

    -80 to 1200 °C

    Temperature by comparison

    Glass Thermometer Calibration

     -50 to 250 Deg C

    Temperature Calibration

    Humidity Chamber Calibration

    30 to 90%RH @ 25°C

    Humidity mapping with data logger

    Incubator Calibration

    -80 to 300°C

    Temperature Calibration

    NON-CONTACT THERMOMETER (Thermal Gun, Pyrometer Calibration)

    -30 to 1200°C

    Temperature Calibration

    Oil Bath Calibration

     -80 to 1200°C

    Temperature, stability and Uniformity (Axial and Radial)

    Oven Calibration

     -80 to 1200°C

    Temperature by comparison

    Soldering Iron

    0 to 1200 °C

    Temperature Calibration

    SPRT Calibration

    -196.075 °C
     0.01 °C
     156.598 °C
     231.928 °C
     419.527 °C

    660.323 °C

    -196.075 to 1200°C


    Temperature by ITS90 Fixed point Method
     (-)196.075DegC Using Liquid Nitrogen SPRT and Fluke make readout by Comparison method
     0.01DegC Using Maintenance Apparatus, TPW Cell and readout by fixed point calibration
     156.598DegC Using Maintenance Apparatus, TPW Cell and readout by fixed point calibration
     231.928DEgC Using Maintenance Apparatus, Tin Cell and readout by fixed point calibration
     419.527DegC Using Maintenance Apparatus, Zinc Cell and readout by fixed point calibration

    669.323DegC Using Maintenance Apparatus, Aluminum Cell and readout by fixed point calibration

    Temperature Indicator or Controller without sensor Calibration

    -200 to 850°C(RTD) -200 to 1700°C (T/C)

    Temperature by comparison

    Temperature Chamber/Bath Calibration

     -80 to 1200°C

    Temperature Mapping, Temperature Uniformity Survey, System Accuracy Test

    Temperature Indicator with Sensor Calibration

     -80°C to 1200°C

    Temperature by comparison

    Temperature Sensor Calibration

     -80°C to 1200°C

    Temperature by comparison

    Universal wear Tester Pressure



    Water Bath Calibration

    Amb to 100°c

    Temperature by comparison


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