MI 3000 EasiPLUS Measurements
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Figure 5.38: Example of phase sequence test result
Displayed results:
Ph...........Phase sequence,
1.2.3........Correct connection,
2.3.1........Invalid connection,
-.-.-..........Irregular voltages.
5.7 Voltage and frequency
Voltage measurements should be carried out regularly while dealing with electric
installations (carrying out different measurements and tests, looking for fault locations,
etc.). Frequency is measured for example when establishing the source of mains
voltage (power transformer or individual generator).
How to perform voltage and frequency measurement
Step 1 Select the VOLTAGE function (Volt.) with the function selector switch. The
following menu is displayed:
Figure 5.39: Voltage and frequency measurement menu
Step 2 Connect test cable to the EasiPLUS instrument and follow the
connection diagram shown in figure 5.40 to perform a voltage and frequency
measurement.
L1
L2
L3
N
PE
R
E
Ro
LPEN
L
/
L
1
N
/L
2
P
E
/
L
3
N/L2
L
/
L
1
PE/L3
Figure 5.40: Connection diagram