General; Function; Self-Test; Checking The Dc Voltage - TESTBOY Profi III LCD+ Bedienungsanleitung

Operation
The following safety precautions are applicable:
| Immediately before using, carry out a function check of the volt-
age tester (VDE regulation 0105, Part 1- Operation of elec. in-
stallations). Make sure that the connecting lines and appliance
are fully serviceable. Check the appliance on a known source of
voltage, e.g. 230 V socket.
Hereby, if the display fails to indicate one or more functions, do
|
not use the appliance and it must be checked by a specialist.
| Only hold the appliance by the handles, avoid touching the
probes!
| Only carry out for isolation from the power supply on both poles!
The appliance must not be operated in a moist environment!
|
Do not use with the battery compartment open! Whilst replacing
the battery, the connecting lines must be removed from the
measurement circuit
|
Correct indication is ensured in the temperature range of
-10 °C − +55 °C.
Always keep the appliance dry and clean. The housing can be
|
cleaned using a moist cloth.
The additional warning symbol and acoustic indications for volt-
|
ages > 35 V are only for warning of hazardous voltages, not for
measurement.
| Before the test, check the audibility of the warning sound at the
ambient volume.
Immediately replace the batteries when the battery icon is dis-
|
played.

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 device, simply hold the test probes on one another.
Attaching and removing the measuring probe adapter makes it easier to carry out measurements at the socket.
Indication of the voltage is carried out without the batteries.

Self-test

For the test, keep the probes apart. The test buzzer must clearly sound and the indication must display ap-
prox. „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 negative voltage is applied at the probe „L2", a „−" (minus) is indicated in front of
the value. From a voltage of approx. 35 V, the hazardous voltage is indicated by a flashing LED behind the display
and an acoustic, vibrating signal is indicated. If the batteries are completely discharged, if voltage is applied,
a warning triangle is indicated on the display.
14
®
Testboy Profi III LCD+