Moving Coil 240 Long Scale Instruments

We are highly reputed manufacturer, supplier and exporter of Moving Coil 240 Long Scale Instruments in Kolkata, West Bengal, India. Moving coil instruments with circular scale of 240A employ a platinum taut band for suspension of moving coil assembly instead of pivot & jewel system. It is less prone to sluggishness & zero shift due to frictionless movement. These meters are basically used for the measurement of DC current & voltage, and can be used with built in rectifier for the measurement of AC current & voltage in the frequency range 45~65Hz. / 400Hz. The meters measure average value. It can be scaled to indicate RMS values (on request).
These instruments are not recommended for non-sinusoidal waveforms of current & voltage. The other indications like Frequency, Power & Power factor can be offered with suitable external transducers. Speed indication is possible if used with AC tacho-generator (not in the scope of AE).

Features:

a c Long scale instruments.

Electrical Specifications

a c TYPEMOVING COIL 240A .
a c OPERATING VOLTAGE60mV to 600V.
a c OPERATING CURRENT500AuA to 30A & Above 30A with external shunt.
a c ACCURACY CLASS2.5 for SQ48, 1.5 for SQ72 & SQ96, 1.0 for SQ14 4, SQ110.
a c DIELECTRIC TEST2kV RMS for 1 min.
a c OPERATING TEMP.-10A C to 55A C
a c STORAGE TEMP.-20A C to 70A C
a c HUMIDITYUp to 95% RH
a c CONFORMS TOI.S. 1248 / I.E.C. 60051 (Part 2)