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Phasing Of Line Voltage - Honeywell 3400 Installation Instructions Manual

E-mon series, advanced kwh/demand meter with communications.
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6.2 Main Power Board Connections (continued)
Verify the voltage readings on Screen 5 using an AC voltmeter. Typical
readings shown below are measured phase to neutral for 4 wire and
phase to phase for 3 wire. Readings should be +/- 10% of nominal.
Meter Type
120/208V, 3ø, 4 Wire
120/240V, 1ø, 3 Wire
120V, 1ø, 2 Wire
277/480V, 3ø, 4 Wire
277V, 1ø, 2 Wire
240V, 3ø, 3 Wire
400V, 3ø, 4 Wire
480V (380, 415), 3ø, 3 Wire 480 VAC (L-L)
600V, 3ø, 4 Wire
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 3-phase AC power input or single-phase option must be in 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.)
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.
Once the meter displays the correct line voltages and there are no error
messages, you are ready to connect the current sensors to the meter. Before
continuing with the installation, verify that the six screens display as follows:
Screen 1 (kWh): Should read 0.0 kWh; if not, should be reset.
Screen 2 (kW Peak Demand):kW peak should read 0.0 kW. There will not
be a date/time stamp yet. If there is a kW
peak recorded, it should be reset later
Screen 3 (kW Load): Should read 0.0 kW load.
Screen 4 (Amps per Phase): There should be 0.0 on all three phases.
Or in the SP option - 0.0 in A and B phases.
Screen 5 (Average AC Volts): See Step F.
Screen 6 (Average AC Volts):See Step F.
Screen 7 (Power Factor): There should be 0.0 PF on all three phases.
Or in the SP option - 0.0 in A and B phases.
NOTE: The meter will be reset later via the software during "startup" procedures.
Nominal Voltage
120 VAC (L-N)
277 VAC (L-N)
240 VAC (L-L)
230 VAC (L-N)
347 VAC (L-N)
Limits (+/- 10%)
108 to 132 VAC
249 to 305 VAC
216 to 264 VAC
207 to 253 VAC
432 to 528 VAC
312 to 380 VAC


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