General; Function; Self-Test; Checking The Dc Voltage - METREL MD 1155 Manual De Instrucciones

Operation

General

Voltages have priority. If no voltage is applied at the measurement probes
(< 3.0 V), the appliance is in the continuous/resistance test mode.

Function

To switch on the appliance, activate the „ON" button.. After a short period,
the appliance automatically switches off by the „Auto Power Off" function.
Attaching and removing the measurement probe adapter makes it easier to
carry out measurements at the socket.

Self-test

For the test, keep the probes apart. The test buzzer must clearly sound and
the indication must display approx. „000". If the LC display does not, or only
faintly illuminates, replace the batteries. If the appliance does not function
with the new batteries, it must be protected from misuse.

Checking the DC voltage

When placing the probes on a DC voltage within the rated voltage range, the
voltage is indicated in Volts and „DC" also appears on the display. If a nega-
tive voltage is applied at the probe „L1", a „−" (minus) is indicated in front of
the value. From a voltage of approx. 35 V, the hazardous voltage is indicat-
ed by a flashing LED behind the display and an acoustic, vibrating signal is
indicated. If the batteries are completely discharged, if voltage is ap-
plied, a warning triangle is indicated on the display.

Check AC voltage (TRMS)

When placing the probes on an AC voltage within the rated voltage range,
the voltage is indicated in Volts and „AC" also appears on the display. The
mains frequency is also indicated. From a voltage of approx. 35 V, the haz-
ardous voltage is indicated by a flashing LED behind the display and an
acoustic signal is indicated.
If the batteries are completely discharged, if voltage is applied, a warn-
ing triangle is indicated on the display.
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Metrel MD 1155* - LCD