When should we have instruments calibrated?
Calibrate on new instruments, after shock, on doubtful readings and at the manufacturer interval.
Calibrate when an instrument is new, after use outside the manual, after a functional fault, neglected maintenance, unauthorised adjustment, doubtful or wrong readings, or mechanical shock.
Wrong measurements cost time, labour, money and reputation. Preventive maintenance, repair and calibration extend instrument life and reduce repair and replacement spend.
Read the manufacturer interval (often 6–12 months for gas detectors) together with the site risk assessment. Recalibrate immediately after cell replacement or firmware updates. ESA offers laboratory and field options in the same quality system.
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