PeakTech 1660 Bedienungsanleitung Seite 50

The AC Voltage ranges are:100 V, 400 V and 750 V.
The frequency range is: 50 Hz ~ 60 Hz.
To measure AC voltage + frequency, connect the Meter as
follows:
1. Insert the red test lead into the L1, L2, L3 input terminal, and
black test lead to the COM input terminal.
2. Dial the Rotary to VAC to select Voltage + Frequency range.
3. Connect the red test leads (L1, L2, L3 input terminal) to the
corresponding three phases loaded live wire. Black test lead
(COM input terminal) to the corresponding three phases
loaded neutral wire.
4. Press SEL to select phase location, the display shows the
corresponding phase symbol. L1 means the first phase
L2 means the second phase
.
5. The display shows the corresponding True RMS voltage
value and frequency value of each phase.
6. Press MAXMIN, the LCD displays
the maximum AC voltage True RMS value.
7. Press MAXMIN the LCD displays
the minimum AC voltage True RMS value. Press MAXMIN
again to show the current AC voltage True RMS value.
8. The display shows 0L when the input voltage is higher than
750V rms.
Note:
When the measurement has been completed, disconnect the
connection between the testing leads and the circuit under test
and remove testing leads from the input terminals.
, L3 means the third phase
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, it starts recording
, it starts recording
,