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MOVING IRON & MOVING COIL METERS

Moving Iron Instruments are generally used for measuring AC Voltages and Currents. A feature of the moving element is that it is fitted with synthetic sapphire jewels. The movement is light and quick-acting, but extremely robust. An efficient system of fluid damping is employed. The movement is efficiently shielded against the effect of external magnetic fields.

Moving Coil Instruments are used for measuring DC values. They can be used too on AC systems , if the input is fed through bridge rectifiers. A Centre magnet system is incorporated in our moving coil instruments which completely shields the movement from the effect of external magnetic fields. The movement is pivoted between synthetic sapphire jewel bearings for frictionless operation.

The above meters can be used for higher ranges by using necessary Current and Potential transformers,  and external shunts, Accuracy Class: 1 to 1.5% as per ISS 1248/83, we also manufacture.


MOVING IRON AMMETERS
Range: 50mA to 100A Self contained and higher ranges via current transformers, with secondary 1A or 5A.Overload scales 2.3 or 4 & 6 times rated load can be provided.

MOVING IRON VOLTMETERS
Range: 50V to 600V Self contained and higher ranges, using  PTs.

MOVING COIL AMMETERS
Range: 50 µA to 30A Self contained and external shunt operated for higher ranges.

MOVING COIL VOLTMETERS
Range: 50 µA to 30A Self contained and external shunt operated for higher ranges.

Specifications:

SIZE 48X48 72X72 96X96 144X144 65 Round 96 Round 65X65 85X85 106X82
CUTOUT IN MM 44X44 68X68 92X92 138X138 66Ø 110Ø 550Ø 650Ø 650Ø
CUTOUT IN MM 40 60 90 140 50 95 52 75 105