General Points; Function; Self Testing - TESTBOY Profi LCD Plus Bedienungsanleitung

| Do not use when compartment is open! The
test leads should be removed from the meas-
urement circuit while changing the batteries.
| Trouble-free operation is guaranteed at tem-
peratures of between -10 °C and +55 °C.
| Keep the device clean and dry at all times.
The casing may be cleaned by wiping with a
damp cloth.
| The additional warning symbols and acoustic
signals issued when voltages are greater than
35 V are only intended to warn of the danger
of life-threatening voltage. They should not be
used for measurement purposes.
| Check to make sure that the warning tone can
be heard amidst the local ambient noises.
| If the battery icon is displayed, immediately
change the batteries

General points

Voltages have priority. If no voltage is detected at the probe tips (< 3.0 V),
the device is in throughput testing mode.

Function

The device is activated and shut down at the "ON/OFF" switch. (See draw-
ing) The "Auto Power Off" function of the device activates after about short
minutes. By pressing the "DATA HOLD" button switch longer than 2 s the
LED torch will be switched on.

Self testing

Hold the probe tips together when carrying out this test. The buzzer on the
test device should sound clearly and the display should show nearly "000". If
the LCD screen is blank or dimly illuminated, the batteries must be replaced.
If the unit does not work with new batteries it has to be protected against
wrong use.
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Testboy Profi LCD Plus
Operation
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