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Industrial Thermometer Calibrations

The Industrial Thermometer Calibration Laboratory calibrates the following:

  • Industrial thermometer probes 
    • platinum resistance (IPRT)
    • thermistor
    • thermocouple
  • Digital readouts with attached probes

Calibrations in this laboratory are made by comparison with an ITS-90 calibrated standard platinum resistance thermometer in stirred liquid baths in the temperature range –196 ºC to 550 ºC. 

Fixed-point measurements at the water triple point (0.01 °C) and the ice point (0 °C) are available.

How to Arrange a Calibration

  1. Go to Shop NIST web page
  2. Down arrow for Calibrations 
  3. Scroll to Thermodynamic and click 
  4. Scroll to Laboratory and Industrial-Grade Thermometers and click
  5. Please note that NIST no longer calibrates Liquid in Glass thermometers
  6. Click the appropriate service description and follow the instructions on that page
  7. If you have questions send email to wmiller@nist.gov or itcl@nist.gov.

Calibration Measurement Uncertainties

Industrial Platinum Resistance Thermometers (IPRTs)

Temperature Range, °C

U (k=2), mK

 –196

2.3

 –97 to –80

9.0

 –80 to –70

4.0

 –70 to 0.5

2.3

0.5 to 95

2.4

95 to 275

4.8

275 to 550

7.5

Thermistors

Temperature Range, °C

U (k=2), mK

 –196

1.8

–97 to –80

9.0

 –80 to –70

3.6

 –70 to 0.5

1.8

0.5 to 95

2.0

95 to 100

3.0

Thermocouples

Temperature Range, °C

U (k=2), °C

Thermocouple Type

 –200 to 0

0.3

T

 –200 to 0

0.2

E

 –200 to 0

0.4

J

 –200 to 0

0.4

K & N

0 to 500

0.5

K & N

Digital Readout with attached probes † 

Temperature Range, °C

U (k=2), mK †

 –196

2.3

 –97 to –80

9.0

 –80 to –70

4.0

 –70 to 0.5

2.3

 0.5 to 95

2.4

 95 to 275

4.8

 275 to 550

7.5


 † The NIST calibration uncertainty does not include an uncertainty for the digital readout device.

Resources

Contacts

Technical contact

Created April 29, 2009, Updated December 9, 2020