Testboy Profi III LED, Operating Instructions Manual

Page: 17 / 156

Operation
Testboy
®
Profi III LED 17
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Load connection / FI/RCD trigger test, PE (protective earth test)
Interference voltages and inductives, as well as capacitive coupling can be reduced during the voltage test by simultaneously press-
ing both buttons, FI/RCD. Thereby, a lower impedance is switched on.
When activating the button, the peak current is less than 0.3 A (Is).
This additional load circuit is protected against overloading and reduces the load current after a few seconds.
This in-built load enables a FI/RCD circuit breaker to trigger.
The FI/RCD (max . 30 mA @ 230 V AC) is tested between the phase and protective earth.
Hold a test probe on a phase-carrying conductor ( refer to the phase test ), the other at the protective earth and press in both
FI/RCD buttons as far as possible.
In the normal case, the FI is not triggered without pressing both buttons!
NOTE
Only carry out the FI/RCD test on fix ed installations and power circuits. In the event of a fault, a test on movable
and devices not permanently wired, ex tension leads, amongst other things, can result in ex cessive current flow
in metallic parts connected to the protective earth.
This test does not replace tests on the FI/RCD protective earth, in accordance with VDE 0100!
For this, Testboy
® provides the appropriate instruments.
Cleaning
Use a damp cloth and mild household detergent to clean the instrument should it become soiled through daily use. Never use ag-
gressive cleaning agents or solvents to clean the instrument.
To prevent electric shocks, do not allow moisture to ingress the housing.
Maintenance
During operation in accordance with the operating instructions, the instrument does not require special maintenance, with the ex -
ception of the batteries.
Replacing the battery
If the batteries are discharged, warning signals are emitted successively and the instrument automatically switches off. Imme diately
replace the batteries in order to ensure accuracy of the test values.
Before opening the battery compartment, disconnect the test probes from the test circuit!
To replace the batteries, open the battery compartment on the main housing. Use a suitable screwdriver and alternately releas e the
screws. When inserting the batteries, ensure that the polarity is correct.
Carefully close and lock the battery compartment with the screws.
With the aid of an LED and without batteries, the instrument indicates an applied voltage of more than the ELV value .
At lower temperatures of less than 5 °C, the readiness of the voltage tester can be impaired. Please provide sufficient power supply
by using suitable batteries which are also specified for the appointed temperature range!
Batteries must not be disposed of with normal domestic waste. There will be a collecti on point near you!