Wattmeters

The Crompton Instruments Switchboard Analog Meter Series of AC Wattmeters incorporate a DC moving coil, pivot and jewel indicator with a micro-circuit watt transducer PCB to read power on single or three phase systems. The most frequently selected wattmeter scale marking for common current and voltage transformers are listed on the following pages. In addition, these instruments may be supplied with zero left or center zero scaling.