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Calibration of temperature sensors

ISO and A2LA temperature calibration

The comparative measurement is performed in stirred, temperature-controlled liquid baths. During calibration, the thermal coupling of the reference device and the device under test occurs by means of the corresponding liquid bath. The reference device measures the  temperature in the liquid bath and is compared to the temperature measured by the device under test.

Calibration

Liquid bath temperature calibration

A2LA calibration verification for temperature sensors 3-point​ (Part no. ZC0064) 

  • Fee charged.  One certificate per sensor required.
  • Created according to A2LA scope number: 3416.01 - Malvern, PA  / ILAC MRA
  • Language: German/English
  • Calibration at three defined temperatures: 65-85-123 °C
  • Applies to the specified article(s) and must be ordered with the sensor. It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for temperature sensors.

A2LA calibration verification for temperature sensors 5-point​ (Part no. ZC0065) 

  • Fee charged.  One certificate per sensor required.
  • Created according to A2LA scope number: 3416.01 - Malvern, PA  / ILAC MRA
  • Language: German/English
  • Calibration at three defined temperatures: 20-65-85-100-123 °C
  • Applies to the specified article(s) and must be ordered with the sensor. It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for temperature sensors.

A2LA calibration verification for temperature sensors n-point​ (Part no. ZC0066) 

  • Fee charged.  One certificate per sensor required.
  • Created according to A2LA scope number: 3416.01 - Malvern, PA  / ILAC MRA
  • Language: German/English
  • Number (max. 4) and position of the calibration points according to customer request (-20...200 °C)
  • Applies to the specified article(s) and must be ordered with the sensor. It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for temperature sensors.

ISO calibration verification for temperature sensors 3-point​ (Part no. ZC0016) 

  • Fee charged.  One certificate per sensor required.
  • Created according to the requirements of DIN EN ISO 9001:2015 by ifm's calibration lab in the US
  • Language: German/English
  • Calibration at three defined temperatures: 65-85-123 °C
  • Applies to the specified article(s) and must be ordered with the sensor. It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for temperature sensors.

ISO calibration verification for temperature sensors 5-point​ (Part no. ZC0017) 

  • Fee charged.  One certificate per sensor required.
  • Created according to the requirements of DIN EN ISO 9001:2015 by ifm's calibration lab in the US
  • Language: German/English
  • Calibration at three defined temperatures: 20-65-85-100-123 °C
  • Applies to the specified article(s) and must be ordered with the sensor. It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for temperature sensors.

ISO calibration verification for temperature sensors n-point​ (Part no. ZC0018) 

  • Fee charged.  One certificate per sensor required.
  • Created according to the requirements of DIN EN ISO 9001:2015 by ifm's calibration lab in the US
  • Language: German/English
  • Number (max. 4) and position of the calibration points according to customer request (-20...150 °C)
  • Applies to the specified article(s) and must be ordered with the sensor. It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for temperature sensors.

Calibration of infrared temperature sensors

The calibration is performed at the specified radiation temperatures in front of a black body radiator with a reference pyrometer used as the standard device, on the basis of the international temperature standards following the ITS-90.

Factory calibration for infrared temperature sensor (Part no. ZC0061) 

  • Fee charged.  One certificate per sensor required.
  • Created according to the requirements of DIN EN ISO9001:2008 by the manufacturer.
  • Language: German/English
  • Applies to the specified article(s) and must be ordered with the sensor.  It cannot be generated after the sensor has been delivered.
  • For new purchases only. We do NOT offer recalibration services for sensors that have been in service.
  • Only available for TW2xxx sensors.

Calibration check technology

ifm offers an alternative to the traditional calibration procedures: the TCC.

Thanks to the calibration check technology, the TCC permanently checks its own drift behavior. The sensor compares the temperature value to the simultaneously measured reference value. If the deviation is outside the tolerance range, which can be set between 0.5 and 3 K, the TCC provides an optical signal and sends a message to the central controller via IO-Link and the diagnostic output. The same applies to cases of serious malfunctions.

To check the calibration status, operating history in hours, temperature and drift value, limit and status are also documented – thus facilitating compliance with the requirements of many standards.

Measuring system

The design of the TCC family of instruments includes two sensing elements that self-detect and send a warning if any signal drift is occurring.

The PTC (Positive Temperature Coefficient) element increases its resistance with increasing temperature. The NTC (Negative Temperature Coefficient) element decreases its resistance with increasing temperature. Because the PTC and NTC react to temperature change in opposite directions, the microprocessor is able to measure the differential between the two elements and alert the user to a potential decrease in accuracy.

See for yourself and save time and money.