Environmental instruments drift, sensors age and field conditions change. Calibration and verification records show that a device was suitable for use when measurements were collected.
Build a simple equipment history
A useful record connects each instrument to its serial number, checks, maintenance, repairs and field deployments.
- ✓Record calibration dates and results
- ✓Document standards or reference equipment used
- ✓Note failed checks and corrective action
- ✓Keep firmware, sensor and battery changes traceable
Match the check to the decision
The frequency and method should reflect manufacturer guidance, measurement risk, operating conditions and any applicable project requirement. A quick field verification and a formal laboratory calibration serve different purposes.
Good calibration records turn a reading into evidence that another person can understand and trust.
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