26 M1M 30 POWER METER USER MANUAL
6.5.VT ratio (VT)
M1M is capable to measure voltage via direct connection up to 265 VL-N, or via indirect connection by
means of voltage transformers.
In order to configure the voltage transformer ratio it is needed to enter manually the values of both
primary (PRIM) and secondary (SEC).
CONF INSTL VT
1. When the number of the primary VT is set, press Button
“Enter”
2. Use Button “Up” and Button “Down” to select the
magnitude
3. Press button “Enter” to confirm the setting of the primary
VT
4. Press button “Down” to go to the setting of the secondary
VT
5. When the number of the secondary VT is set, press Button
“Enter”
6. Press button “Enter” to confirm the setting of the
secondary VT
In case of direct insertion without voltage transformers, please set VT ratio as 230/230 (default)
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