External Voltages; Maintenance - dehn EP4 Instructions For Use Manual

Errors:
If no result is displayed, the evaluation may be outside the selected measuring
range, for example if the test prod slips down or impedances heavily fluctuate.
You should repeat the measurement. If the repeated measurement does not
provide a clear result, perform standard measurements with both polarities and
assess the measured values on your own.

4.5 External voltages

When the EP4 continuity tester is switched on and a voltage from 15 to 400 V
is applied, the red LED flashes and an acoustic signal sounds. At the same time,
the voltage is displayed on the LCD. Semi-conductors protect the device up to
400 V. In case of higher voltages, a fuse that can only be replaced by the
manufacturer trips. The fuse is automatically checked during the self-test of the
device (see 3.).

5. Maintenance

The current battery status is displayed via a three-stage battery indicator. All
three segments are displayed if the battery is fully charged. Many measurements
can still be performed if a half-filled battery symbol appears. If an empty battery
symbol is displayed, the battery voltage is too low and the battery must be
replaced. Depending on the battery type, at least five measurements can still
be performed.
Attention: If the empty battery symbol flashes, the measured values are no
longer reliable. Immediately replace the battery.
To this end, unscrew the rear cover.
⇒ Only use the following batteries:
9 V block battery (EC 6 LR 61 or 6 F 22).
⇒ Keep the plugs, sockets and contacts clean and clean them, if required.
Regularly check whether the battery has leaked.
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