ANALOG VOLTMETER
Analog Voltmeters with size 72x72 and 96x96 are available. Moving iron meters are suitable for the measurement of true rms a.c. current or voltage. All moving iron meters have interchangeable scaleplates. Scales are non-linear and are calibrated down to 20% of full scale. Ammeters are available with a 2x overload as standard or a 6x overload for monitoring motor start up currents. Voltmeters are also available with scales for high voltage measurement via voltage transformers. All moving iron meters are calibrated for operation at 50/60Hz but calibration at 400Hz is available upon request. Moving iron meters may be used to measure d.c. at reduced accuracy.
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