Dc Null Detector - Substitute for Spot Reflecting galvanometer

Product Details

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.