Since magmeters do not have mechanical parts that wear out, once the unit has been calibrated (during the manufacturing period), it should not drift from this original setting, and therefore does not require period calibration.
Flow Meters and Environmental Sensors for Precision Fluid Measurement
Since magmeters do not have mechanical parts that wear out, once the unit has been calibrated (during the manufacturing period), it should not drift from this original setting, and therefore does not require period calibration.