Thermometer Calibration Using Controlled Temperature Baths

Place crushed ice in a beaker or container add just enough distilled water to make a uniform slush ice.

Thermometer calibration using controlled temperature baths. This low cost water bath is ideal for checking the calibration of a wide range of instrumentation including thermometers and data loggers. To calibrate temperature monitoring and temperature control devices in the absence of a nationally or internationally accredited calibration laboratory using the ice water procedure and it outlines the limitations of this approach. The sensor is usually a composite material containing metallic oxides. High accuracy thermometer has a temperature range of 58 to 158 f 50 to 70 c and resolution of 0 01 and maintains an accuracy of 0 25 c across the entire temperature range.

To calibrate a thermometer for low temperature monitoring follow these steps. Tex 926 k construction division 2 7 effective date. High temperature calibration can be used for low temperature calibration as long as the thermometer is allowed to equilibrate to room temperature before use. You might be asking how do you calibrate a thermometer with ice water.

To make sure your thermometer is accurate it must be calibrated and that s where ice bath temperature comes in. Ideal for monitoring temperatures in refrigerators freezers water baths heating blocks. Switch the water bath on set the verification temperature and insert your temperature probe into the bath and compare the results against your reference thermometer it could not be easier. August 1999 2 3 2 thermistor thermistor is the electrical resistance of the sensor varies with its temperature.

Calibration baths fluke calibration baths provide optimal temperature environments for secondary or comparison temperature calibrations. How to perform calibration of ir thermometer using the ice bath. Thermometer calibration temperature calibration. They offer unsurpassed stability and uniformity a large working volume and flexibility for performing thermometer calibration or calibrating a variety of temperature sensors.

This is a simple calibration procedure designed to calibrate your ir thermometer at the zero deg c range only. Platinum resistance thermometers prts standard platinum resistance thermometers sprts and liquid in glass thermometers can all be calibrated through the use of a temperature bath with longer thermometers a deep well compact constant temperature bath can be used for calibration. If you need more accuracy at a higher range it is advisable to send your ir thermometer to a qualified calibration lab. A comparison from a known zero value the ice bath.

At pcs we provide a wide range of iso 17025 accredited calibration services for all types of thermometers and temperature control systems used in ovens furnaces kilns freezers and other temperature controlled applications. The resistance change is not generally as stable with time as the rtd sensors.