Q37 Are there any guides, etc. to determine a calibration cycle?

Anritsu Meter recommends calibration once a year as a guideline.

The calibration cycle must be determined by the user in consideration of the usage conditions.
Thermometers and temperature probes deteriorate as they are used for many years, and the measured values may deviate without being noticed.
By calibrating regularly, it is possible to check whether the thermometer and temperature probe measures within tolerance and whether it is operating normally.

A long calibration cycle has the advantage of keeping costs down, but it also increases the risk of using thermometers and temperature probes with inaccurate measured values. It is important to establish an appropriate calibration interval while considering risks and costs.