CLASS 3200 METER
62-0390-02 14
6.2 Main Power Board Connections (continued)
D. Connect the three AC main power wires (Phases A, B and C) to their respec-
tive positions as labeled on terminal block TB1. After all conductors are con-
nected to each of their respective terminal block positions and tightened to 7
in-lb, verify that each terminal block screw is securely fastened by gently tug-
ging on each conductor. Verify that no conductor wires are frayed or shorting
to adjacent terminal block positions.
E. Turn ON the AC main power input. The meter display will light up and scroll
through 6 displays. Each display is visible for 5 seconds. Display screens are
as follows:
Screen 1 - Total kilowatt-hours (kWh) consumed
Screen 2 - Peak demand (kW) with date & time stamp
Screen 3 - Actual load (kW)
Screen 4 - RMS Amps
Screen 5 - RMS Volts Phase to Neutral
Screen 6 - RMS Volts Phase to Phase
Screen 7 - Power factor (PF) per phase
F. Verify the voltage readings on Screen 5 using an AC voltmeter. Typical read-
ings shown below are measured phase to neutral (L-N) for 4 wire and phase
to phase (L-L) for 3 wire. Readings should be +/- 10% of nominal.
NOTE: Meters are powered by phases A and B. The displayed voltages will be the
measured AC voltage between phases.
Meter Type Nominal Voltage Limits (+/- 10%)
208V, 3ø, 4 Wire 120 VAC (L-N) 108 to 132 VAC
480V, 3ø, 4 Wire 277 VAC (L-N) 249 to 305 VAC
600V, 3ø, 4 Wire 347 VAC (L-N) 312 to 380 VAC
240V, 3ø, 3 Wire 240 VAC (L-L) 216 to 264 VAC
480V, 3ø, 3 Wire 480 VAC (L-L) 432 to 528 VAC
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