LS-80 Switchboard Meter
For ranges higher than 20A DC, use external shunt with a 50mV DC Ammeter. For ranges higher than 300V DC, use external Multiplier with a 1mA Voltmeter. For ranges higher than 5A AC, use external Current Transformer with a 5A AC Ammeter. For ranges higher than 600V AC, use external potential Transformer with a 150V AC Voltmeter.
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Hoyt Electrical Instrument Works Inc.
23 Meter Street
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