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3 phasing of line voltage – E-Mon E50-6003200J*-N-KIT User Manual

Page 15

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GREEN CLASS NET METER

15

62-0416-01

f. Verify the voltage readings on Screen 5 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 3-phase AC power input 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 6.2.4.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 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 (Load/Clock Calendar): Should read 0.0 kW load.

Screen 4 (Amps per Phase):

There should be 0.0 on all three phases.

Screen 5 (Average AC Volts):

See the section 6.2.4.F.

Screen 6 (Power Factor):

There should be 0.0 PF on all three phases.

NOTE: The meter will be reset later via the software during “startup” procedures.

Meter Type

Nominal Voltage

Limits (+/- 10%)

208/240V, 3ø, 4 Wire

120 VAC (L-N)

108 to 132 VAC

480V, 3ø, 4 Wire

277 VAC (L-N)

249 to 305 VAC

208/240V, 3ø, 3 Wire

240 VAC (L-L)

216 to 264 VAC

480V, 3ø, 3 Wire

480 VAC (L-L)

432 to 528 VAC

600V, 3ø, 4 Wire

347 VAC (L-N)

312 to 380 VAC