How often should the AC6 be re-calibrated?

A-All electronic manometers should be re-calibrated at least once per year. The main reason for this is that the commissioning engineer is usually next in line to work on a system after the water treatment engineers. It has been shown through experience that water treatment chemicals and agents get left behind in the system- often in the test point pockets if these are facing downwards.

The chemicals have been found to deposit thin coatings on the internal parts of the meter with a resultant change in the calibration. Calibration by Comdronic Ltd is reasonably priced and includes complete overhaul. More.

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