3.2 Configuring Settings
40
This section describes how to select the wiring mode according to the line being measured.
Measurement characteristics
: Measurements are performed using the instrument’s CH1
and CH2.
:Measurements are performed using the instrument’s CH1,
CH2, and CH3.
3.2 Configuring Settings
3.2.1 Selecting the Wiring Mode
Display order
1P2W×2 → 1P3W → 3P3W → 3P3W2M ⋅⋅⋅
1P2W×3 → 1P3W&1P2W → 3P3W&1P2W → 3P3W2M → 3V3A → 3P3W3M → 3P4W ⋅⋅⋅
The wiring mode cycles through the
values described below each time
is pressed.
In the shift state, the wiring mode cycles
through the values in reverse order. The shift
state is canceled approx. 2 seconds after
pressing .
1P2W×2
Can be used to measure two 1-phase/2-wire circuits (default setting).
Can be used to measure the efficiency given by the CH2 active power relative to the CH1 active power,
or the efficiency given by the CH1 active power relative to the CH2 active power.
1P3W Can be used to measure one 1-phase/3-wire circuit.
3P3W
Can be used to measure one 3-phase/3-wire circuit.
Active power is measured by 2-power measurement method.
3P3W2M
Can be used to measure one 3-phase/3-wire circuit.
Active power is measured by 2-power measurement method.
The line voltage and phase current, which are not actually measured, are calculated using vector com-
putation internally and displayed as the CH3 voltage and current.
1P2W×3
Can be used to measure three 1-phase/2-wire circuits (default setting).
Can be used to measure the efficiency given by the CH3 active power relative to the CH1 active power,
or the efficiency given by the CH1 active power relative to the CH3 active power.
1P3W&1P2W
Can be used to measure a total of two circuits: one 1-phase/3-wire circuit with CH1 and CH2, and one
1-phase/2-wire circuit with CH3.
Can be used to measure the efficiency given by the CH3 active power relative to the sum of the CH1 and
CH2 active power, or the efficiency given by the sum of the CH1 and CH2 active power relative to the
CH3 active power.
3P3W&1P2W
Can be used to measure a total of two circuits: one 3-phase/3-wire circuit with CH1 and CH2, and one
1-phase/2-wire circuit with CH3. For one 3-phase/3-wire circuit, active power is measured by 2-power
measurement method. Can be used to measure the efficiency given by the CH3 active power relative to
the sum of the CH1 and CH2 active power, or the efficiency as given by the sum of the CH1 and CH2
active power relative to the CH3 active power.
3P3W2M
Can be used to measure one 3-phase/3-wire circuit.
Active power is measured by 2-power measurement method.
The line voltage and phase current, which are not measured with the 3P3W wiring mode, are calculated
using vector computation internally and displayed as the CH3 voltage and current.
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