How often do I have to Calibrate my balance, & what are the risks of not Calibrating?
A calibration certificate reports results at the time the calibration was performed. In many cases the responsible person assumes that the calibration is valid for a year. This leads to the wrong conclusion that a calibration interval of one year is sufficient.
Ideally, calibration intervals are defined following a risk-based methodology, for example what is the probability of something going wrong and how high is the impact? A high impact and high probability corresponds to a high risk, which requires a shorter calibration interval. Otherwise a low impact and a low probability results in a low risk, allowing intervals to be extended.
To forgo calibration is a high-risk strategy. Hidden costs and risks associated with the un-calibrated balance or scale could be much higher than the cost of calibration itself. Using non-calibrated equipment can lead to production problems such as:
- unscheduled downtime
- inferior product quality
- process and audit issues
- product rework and recalls
Environmental changes can also lead to undetected drift or increasing random errors which degrade performance. Periodically scheduled calibration along with routine testing is the best way to reduce calibration-related risk.