H-SERIES GREEN CLASS NET METER
17
62-0424-02
f. Verify the voltage readings on Screen 7 using an AC voltmeter. Typical read-
ings shown below are measured phase to neutral for 4 wire and phase to
phase 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.
6.3 Phasing of Line Voltage
The three phase AC power input must be in proper phase sequence. Single phase
option - AC power input must be in the proper phase sequence. If the sequence is
incorrect or a phase is missing, there will be a message on the meter’s display: “PH
Sequence Error” or “PH Missing:. (Refer to the section on Line Voltage Diagnostics if
this message is present.) When the line voltage is connected correctly, the meter’s
display will be blank (no message).
For single phase connection: connect two ac main power wires to phases A
and B and a jumper wire from B to C - factory installed for single phase option.
Wait for the meter display to scroll to the voltage display. Verify that the meter reads
correct voltages on all three phases. Repeat Step F above.
Meter Type
Nominal Voltage
Limits (+/- 10%)
120/208V, 3ø, 4 Wire
120/240V, 1ø, 3 Wire
120V, 1ø, 2 Wire
120 VAC (L-N)
108 to 132 VAC
277/480V, 3ø, 4 Wire
277V, 1ø, 2 Wire
277 VAC (L-N)
249 to 305 VAC
240V, 3ø, 3 Wire
240 VAC (L-L)
216 to 264 VAC
400V, 3ø, 4 Wire (380, 415) 230 VAC (L-N)
207 to 253 VAC
480V, 3ø, 3 Wire
480 VAC (L-L)
432 to 528 VAC
600V, 3ø, 4 Wire, (wye only)
347 VAC (L-N)
312 to 380 VAC
