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V: 1.0 Revised: Jan. 2018
14
AcuDC 240 Series
DC Energy & Power meters
2.3.2 Current Input Wiring
AcuDC 240 meter current can be wired in three different ways: direct wiring, wiring using
a shunt and wiring using a current Hall Effect sensor.
NOTE: When wiring using a shunt or Hall Effect Sensor these must be wired on the
negative terminal of the load that is being measured.
Choice of wire current input is AWG15-16 or 1.5-2.5 mm2 or equivalent resistance wire.
Fig 2-11a Wiring using a Shunt
Fig 2-11b Direct Wiring
U+NCU-NCI+I-
123456
V+GNDV-NCDI22DI21DI12DI11
2423222120191817
Vdc+Vdc-
Load
shunt
I/O terminal strip
Meter
Voltage, Current, Terminal Strip
U+NCU-NCI+I-
123456
V+GNDV-NCDI22DI21DI12DI11
2423222120191817
Vdc+
Vdc-
Load
I/O terminal strip
Meter
Voltage, Current, Terminal Strip