44 Chapter 4 Setup Menus
2
Energy roll value example: If roll value = 10.E4, the energy counter contains 4
digits, i.e., energy is displayed up to 9.999 MWh (Mvarh, MVAh) with resolution
0.001 MWh.
Rollover
Value
Maximum Energy
kWh (kvarh,
kVAh)
Maximum Display
Reading
MWh (Mvarh, MVAh)
Display Resolution
MWh (Mvarh,
MVAh)
10.E4 9,999 9.999 0.001
10.E5 99,999 99.999 0.001
10.E6 999,999 999.999 0.001
10.E7 9,999,999 9,999.99 0.01
10.E8 99,999,999 99,999.9 0.1
10.E9 999,999,999 999,999 1
The roll value may be changed in accordance with the average load of the power
line. For example, if average power is 400 kW and the counter must be reset every
3 months (2160 hours), then energy during this period equals 864000 kWh (6
digits) and the roll value = 10.E6.
3
Energy pulse test mode is used for testing the device’s energy measurement
accuracy. When the meter is put into the test mode, the energy pulse LED flashes
at a rate of 0.1 Wh/pulse (10,000 pulses/kWh) in secondary readings as the meter
measures imported (consumed) active or inductive reactive energy. When the
meter is in the test mode, the common energy accumulators are not affected.
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