Series 2000 MMU Installation Manual
Leviton Manufacturing Co., Inc. 17
3.9 Testing the Installation
Testing Voltage
Voltage should also be tested using an AC Voltmeter to verify that the voltage
across voltage line terminals (L1, L2, and L3 to Neutral) is not in excess of the
maximum rated voltage.
CT Reverse Phase Indicator
Series 2000 meters have a red reverse phase indicator LED. There must be a
load drawing more than 1 Amp connected to the meter in order for the
reverse phase LED to function correctly. If this LED is on (with a
sufficient load), power down the voltage supply and verify that all CTs are
installed correctly.
Load LED
The load LEDs are described in section 2.3. These LEDs should be pulsing at
50% duty cycle when the meter is connected properly and a constant load is
applied. Without a proper load, the load LEDs could be on or off.
LCD Display
From this description, it is possible to determine if the kWh and/or demand
values displayed on the LCD are consistent with the applied load. A load must be
applied for the kWh value to show significant changes.
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