How often should the accuracy of a built-in thermometer be checked?

The accuracy of a built-in thermometer should be checked monthly to ensure that it is functioning correctly and providing reliable readings. Monthly checks are a practical frequency for monitoring equipment that is crucial for safety and operational effectiveness in radiography. This regular verification helps identify any potential calibration issues before they become critical, ensuring that the temperature measurements remain within acceptable limits for the processes being monitored.

More frequent checks may be considered excessive for some equipment, as it could lead to unnecessary downtime and resource expenditure. Conversely, infrequent checks could allow undetected inaccuracies to persist, potentially impacting the quality of radiographic work. Monthly checks strike a balance that ensures continued accuracy while being manageable in scope.