The M100 series of frequency transducers are designed to measure frequency in single and 3 phase systems. The AC input is converted to a DC output, that is directly proportional to the change in input frequency within a specified span. The M100-FA1 is self powered (no auxiliary required). The working voltage range is 75-125% of the nominal voltage. The M100-FL1 is auxiliary powered. The outputs are live zero either 4mA or 1V. The auxiliary enables the working voltage range to be 15-125%. The M100-FX1 is essentially the same as the FA1 but an auxiliary is provided to enable the unit to have a working voltage range of 15-125%. All types of the above frequency transducers are typically used to monitor and control frequency in such applications as 3 phase main supplies, AC generation sets and process controls etc.

M100-FA1 Self Powered True Zero OutPuts
M100-FL1 Self Powered Live Zero Outputs
M100-FX1 Auxiliary Powered True Zero Outputs