The type of temperature sensor you choose will depend on the temperature range and accuracy required.
The temperature sensor you choose will depend on the usual temperature it will experience and also the maximum over-temperature that may be experienced.
Pushing a temperature sensor to its limits for long periods of time will develop an error (called drift) and the temperature sensor will record a lower temperature than it is actually experiencing.
If you are using the temperature sensor in extreme temperatures its best to use the sensor only once so you don’t get drift. If the sensor experiences temperatures within its operating range drift will not happen and the temperature sensor can be reused many times accurately.
The chart below should help you choose which sensor is suitable for your application:
Different types of sensors have different accuracy tolerances. All sensors we sell are within defined tolerance bands to European standards (IEC 584, 1515 etc.).
If small inaccuracies are tolerable in your process then standard sensors are fine. Our sensors are sold to operate within their defined tolerance, although they have not been proven in finished form. All our sensors are made with calibrated materials and we can supply certificates to prove their tolerance. If required we can calibrate a representative sensor from the same batch. A calibration certificate will be supplied in this case.
If tighter tolerances are required then all sensors can be supplied with calibration certificates. If you require tight tolerances with high reliability our sensors can be tested at a UKAS proven laboratory and a UKAS certificate provided. These calibrations are carried out in a fully controlled environment and are the tightest accuracies available.
This chart shows the tolerances that Peak Sensors will normally supply to:
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