Frequency measuring instrument FAD

voltageelectronicmoving coil

The instruments have 2 independent moving coil movements to measure the frequency for example between 2 generators or one generator and the net. These instruments are made of a moving coil movement with electronic transducer. The meter movements are jewelled and shock-proofed by sprung storage of jewels. The indication is mainly independent of curves, form errors and fluctuations of the measuring voltage. Scale - double Class - 1.5 Dimensions in mm - 96 x 96 Admissible change in rating voltage: ± 20 % External magnet field: 0.5 mT