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Industrial Thermometer Calibrations

The Industrial Thermometer Calibration Laboratory calibrates

  • 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 Ga melting point (29.7646 °C) [for a thermometer with an outer diameter of less than 3.6 mm], the water triple point (0.01 °C) and the ice point (0 °C) are available.

How to Arrange a Calibration

  1. Contact the staff member in charge of the calibration service for your artifact with any technical or calibration cost questions.
  2. Calibrations are performed on a first come first serve basis.
  3. Ship your artifact with a copy of the purchase order. Use a sturdy box in which we can return the calibrated instrument.
  4. The purchase order my be sent to contact by e-mail, fax, or mail. Please include the following information:
  • service ID for the calibration
  • model and serial number of your artifact
  • customer contact name, address, phone, and e-mail
  • return shipping method (e.g. shipping account number)

For contact information, shipping address, or cost of calibration, see Laboratory and Industrial-Grade Thermometers.

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 November 15, 2019