2 main power board connections (continued), 3 phasing of line voltage, 4 current sensor installation & wiring – E-Mon E34-6003200R*KIT User Manual

Page 14

Advertising
background image

CLASS 3400 METER

62-0391-01

14

6.2 Main Power Board Connections (continued)

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 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.

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.

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

6.4 Current Sensor Installation & Wiring

Once the AC voltages have been confirmed to be within acceptable limits, you are

ready to install the current sensors. TB1, positions 5 and 6 are the inputs for Phase A,

TB1 positions 7 and 8 are the inputs for Phase B and TB1 positions 9 and 10 are the

Phase C inputs.

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

600V, 3ø, 4 Wire

347 VAC (L-N)

312 to 380 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

Advertising