Description

Used for detection of null points in electrical circuits. Housed in metal casing with self contained lamp and scale arrangement. With Lock/Unlock knob at the top; and ON/OFF switch, a pair of 4mm colour coded socket terminals for input to be measured and sensitivity adjustment knob at the front. The front scale graduated in millimeters from 0-18cm (left zero and 9-0-9cm (center zero), for reading as required. Galvanometer coil resistance 125 Ohms Nominal, Sensitivity is 15mm/?A, time period 2 seconds, and critical damping resistance 1000 Ohms. Operates on 220-240V AC 50/60Hz.