Abstract: A modular utility meter, for example, a water meter, is provided which comprises a meter base and a meter head. The output signal from a transducer in the meter base is processed in the meter head to calculate the utility supply. The processing includes linearization of the signal calibration data stored in the meter base. Therefore, any meter head may be combined with a meter base containing any different type of transducer.

Abstract: A modular utility meter (1), for example, a water meter, is provided which comprises a meter base (2) and a meter head (3). The output signal from a transducer in the meter base (2) it processed in the meter head (3) to calculate the utility supply. The processing includes linearization of the signal using calibration data stored in the meter base (2). Therefore, any meter head may be combined with a meter base containing any different type of transducer.

Abstract: A switch status sensor is provided for counting on/off events of a switch of a water meter. When an on/off event is detected by a microcontroller, the microcontroller supplies a “signature” signal, which is distinguishable from electromagnetic noise, to the switch. If this “signature” signal is detected as having passed through the switch by the microcontroller, then it can be confirmed that the switch is closed. Alternatively, if the “signature” signal is not detected as having passed through the switch by the microcontroller, then it is verified that the switch is open. Thus, the switch status sensor can distinguish between false switch events caused by electromagnetic noise and true on/off events of the switch.