General Information - Gossen MetraWatt METRAVOLT 12D+L Mode D'emploi

4. Measuring and testing

4.1 General information

The voltage tester switches on automatically when
a voltage of at least 24 V is applied. If the function
continuity testing had been activated, the device
switches automatically to voltage testing. The in-
strument automatically selects the measuring range
that corresponds to the applied voltage (see section
5.). In order to extend battery life the instrument
switches off automatically approximately 30 seconds
after the last measurement.
Note:
It is possible that the voltage tester switches-on
automatically when only one test electrode is
connected to voltage or to a statically charged
object. This has no significance.
"Hold" test results (HOLD)
The maximum voltage value can be stored on the
display when keeping pressed button .
HOLD
The value is recorded for approx. 30 seconds or until
you press button again. The Hold-function is
HOLD
stopped when again a voltage is impressed.
Note:
When the measured value does not vary for
2 seconds, the maximum value is recorded.
4.2 Testing voltage an polarity
Securely contact the test electrodes with the test
points. Voltage is indicated on the display.
Attention!
When a hazardous voltage (≥ 50 V AC / 120 V DC) is
impressed, the red LED lights up.
The maximum allowable on-time for voltage testing
is 2 minutes.
Note:
The display of the LV indication (LED) remains
in working order even when the battery is not
available.
Direct and alternating voltage, polarity
The type of voltage is indicated by the symbols "~"
for AC and "-" for DC. When minus is connected to
the test electrode with display part designated with
"+", then the "-" leading sign appears. When plus is
connected, then no leading sign appears left to the
displayed value.
Note:
Voltages with frequency of more than 2 kHz are
indicated by the flashing Hz symbol.
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