YOKOGAWA WT310E, User Manual

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2-3 IM WT310E-01EN
Measurement Conditions
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App
Index
2.2 Configuring the Wiring System Settings
(WT332E/WT333E only)
Procedure
Press WIRING to select the wiring system.
Each time you press WIRING, the wiring system changes in the order shown below.
The WT310E and WT310EH only have one input element, so there is no wiring system selection.
WT332E
(2 input elements)
WT333E
(3 input elements)
1P3W 3P3W
3P4W
3V3A
1P3W
3P3W
3P4W 3V3A
Explanation
Wiring System
The wiring systems that you can select vary depending on the model.
WT310E and WT310EH
The WT310E and WT310EH are only equipped with one input element. You can measure single-phase,
two-wire systems. Because there is only one input element, you cannot select different wiring systems.
WT332E (Two Input Element Model)
The WT332E is equipped with two input elements (element 1 and element 3).
On the WT332E, you can select the following wiring systems.
Wiring System Description Elements
1P3W Single-phase, three-wire Element 1 and element 3.
3P3W Three-phase, three-wire Element 1 and element 3.
The measured data when a single-phase, two-wire system (1P2W) has been specified is the measured
data for elements 1 and 3.
The measured data for a single-phase, two-wire system will be measured correctly regardless of which
of the above wiring systems you select.
WT333E (Three Input Element Model)
The WT333E is equipped with three input elements (element 1, element 2, and element 3). On the
WT333E, you can select the following wiring systems.
Wiring System Description Elements
1P3W Single-phase, three-wire Element 1 and element 3. Element 2 is for a single-
phase, two-wire system.
3P3W Three-phase, three-wire Element 1 and element 3. Element 2 is for a single-
phase, two-wire system.
3P4W Three-phase, four-wire Elements 1, 2, and 3.
3V3A
Three-voltage, three-current method Elements 1, 2, and 3.
The measured data when a single-phase, two-wire system (1P2W) has been specified is the
measured data for elements 1, 2, and 3. The measured data for a single-phase, two-wire system will
be measured correctly regardless of which of the above wiring systems you select.
Note
• Select a wiring system that matches the connected circuit under measurement. The internal processing
of this instrument varies depending on the selected wiring system. If the selected wiring system does not
match the actual circuit, measurements and computation will not be correct.
• For the relationship between the wiring systems and the method of determining the measured values or
computed values, see page appendix 1.