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ML0044B October 15, 2019 Copyright 2019 Bitronics, LLC
3.1 Auxiliary Power
The M66x meters are powered by connections to L1(+) and L2(-). A Blue LED Power
(PWR) indicator is provided on the rear panel to indicate that the unit is powered ON.
It is located on the right of the rear panel.
There is an option that allows the voltage across the Auxiliary Power input voltage
across terminals L1(+) and L2(-) to be monitored. This monitoring option is only found
in 60 Series SCADA meters that have been manufactured with this monitoring option.
Refer to the order guide to verify whether the meter is made with this monitoring
option. ‘V Aux’ will appear on the display as a measurement for meters equipped with
this monitoring option.
3.1.1 Specifications (per section 1.3)
Power Supply Input (Auxiliary) Voltage – terminals L1(+) and L2(-)
DC PWR (Low Voltage Vdc) - Power Supply Input (Auxiliary Voltage - intended for
connection to 12V or 24V battery voltages)
Nominal: 12-40V dc
Operating Range: 8-40V dc
Burden: 5W max
Overcurrent protection (Required) : Refer to section 2.4
AUX PWR (Universal) - Power Supply Input (Auxiliary Voltage)
Nominal: 48-250V dc, 69-240V ac (50/60Hz)
Operating Range: 37-300V dc, 55-275V ac (45-65Hz)
Burden: 8W max, 24VA max
Overcurrent protection (Required) : Refer to section 2
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