Our units are design to be very portable and are supplied in their own carry cases which protects from damage and enable easy portability.
Sensor Immersion problems
If a sensor well is too deep for a sensor this will lead to wildly varying temperature readings.
If the sensor is too short for the dry well depth then a liquid calibrator bath should be used.
The second alternative would be use a reference sensor probe of a similar size, this will reduce inaccuracies and heat loss that can occur via a reference probe stem that is too long
What type of temperature calibrator do I need?
Our units have great accuracy and stability which is the most important features to look for when selecting the right temperature calibrator.
We have units suitable for measuring between -25 to 650°C and the option of a dry-block insert or a liquid bath.
When selecting which unit is needed you should consider the following factors: -
• Temperature Range
• Accuracy and Stability
• Insert hole or sensor shape.
• Sensor Immersion problems
Accuracy and Stability
Accuracy determines how close the dry-well is to the programmed set point.
Stability is how much movement from the setpoint over a period of time.
If these factors are not meet this will lead to in the sensors actually reading a wildly different temperature than the displayed one!
A good rule of thumb is to make sure that your dry-well is at least twice as accurate as the sensors you are checking. Also, make sure to get a certificate from the manufacturer certifying that the accuracy is traceable to NIST. It shouldn’t cost extra for the certificate.
Here’s another tip. The dry-well should have at least the set-point resolution of the accuracy it claims or your target accuracy. For example, if you are calibrating an RTD to ±0.5°C at 100°C and your instrument only displays temperature to ±1°C, you obviously can’t claim better than 1°C for your calibration.