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5.
Other Functions
5.2 Measuring high voltage
If the line voltage measured is 480V or more, for example, measuring 6,600V in the cubicle, use a transformer to
convert the line voltage within the input voltage range of this product. Set the multiplication factor from the primary
voltage value and the secondary voltage value. For example, if the primary voltage is 880V and the secondary
voltage is 110V, this becomes 880/110=8.00.
■
Set the VT ratio (Ex.:
set to 8.00
)
If a measured value is displayed, press and hold the [MODE• ] key and enter your password to switch to the setting
mode.
1
Press the [MODE• ] key to move to the common settings "CMMN" category display screen.
2
From the common setting items, press the [
][
] keys to move to "VT ratio (MENU 06)".
3
Press the [ENTER] key to enter the setting mode. The second decimal place of the setting value in the main
display flashes.
4
Press the [
][
] keys to change the value to "8.00".
– Press the [MODE• ] key to move one place to the left.
– If you press the [MODE• ] key on the end at the left, the cursor moves to the right end.
5
Press the [ENTER] key to confirm your change.
Caution
• When measuring voltage under 480V, accuracy can be improved by directly entering the voltage rather than by
using a transformer.
Power side
1-phase 2-wire
3-phase 3-wire
1-phase 3-wire
Power side
Power side
R
N
L
N
T
R
S
T
Transformer for
instrument(VT)
Transformer for
instrument(VT)
Transformer for
instrument(VT)
V
2
V
3
V
1
V
N
V
1
V
N
V
3
V
1
1
Automatic transition
2
4
5
3
