Dc Null Detector - Substitute for Spot Reflecting galvanometer

Digital Null Detector Replacement of spot Reflecting Galvanometer. Basic purpose of Spot reflecting Galvanometer is to measure current & by rotating milli-ohm dial & slide wire dial in Kelvin, we will minimize current & make it zero which is called Null Detection & in DND, we also do same thing i.e. when current is zero, we get null detection. Digital Display of 4.1/2 digit is provided on front panel. Connect it with Kelvin Double Bridge & set zero as 00.00 & now do balancing of bridge. At the time of null point, Value from +ve side will decrease & move gradually to – side. At the time of Null point, our display will show 00.00 & then we can note down readings. Resolution of displayed value is as good as .01 micro-Amp. Basically it is 4.1/2 digit Micro-amp. meter which will have max. range of 199.99 uA at high sensitivity range & Resolution is 0.01 uA. Set Zero facility is also provided. This instrument is Vibration Proof & we get better results in comparison to Spot Reflecting Galvanometer. We also provide warranty of 1 year which we normally do not give for Spot Reflecting Galvanometer.