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.

Thermometer calibration using controlled temperature baths.

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. Ideal for monitoring temperatures in refrigerators freezers water baths heating blocks. Thermometer calibration using controlled temperature baths txdot designation. The resistance change is not generally as stable with time as the rtd sensors.

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. A comparison from a known zero value the ice bath. High temperature calibration can be used for low temperature calibration as long as the thermometer is allowed to equilibrate to room temperature before use. Tex 926 k construction division 2 7 effective date.

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

This is a simple calibration procedure designed to calibrate your ir thermometer at the zero deg c range only. Calibration baths fluke calibration baths provide optimal temperature environments for secondary or comparison temperature calibrations. Thermometer calibration temperature calibration. To make sure your thermometer is accurate it must be calibrated and that s where ice bath temperature comes in.

They offer unsurpassed stability and uniformity a large working volume and flexibility for performing thermometer calibration or calibrating a variety of temperature sensors. August 1999 2 3 2 thermistor thermistor is the electrical resistance of the sensor varies with its temperature. 1 1 requirements as a general rule temperature measurement and control devices must periodically be. If you need more accuracy at a higher range it is advisable to send your ir thermometer to a qualified calibration lab.

You might be asking how do you calibrate a thermometer with ice water. To calibrate a thermometer for low temperature monitoring follow these steps.