LCD Plus Voltage Tester
ENG
Thank you for purchasing your Testboy® Profi LCD two-pole voltage tester with LCD screen. The device can
be used to detect DC and AC voltages of between 12 and 690 V, for polarity, phase sequence and
throughput testing at up to 2 k
Ω
,and for FI/RCD tests.
The Testboy® Profi LCD carries a high protection rating (IP65), making it suitable for use in harsh conditions.
Notes on safety:
You have selected a device that is designed to offer you a high
degree of safety. It conforms to standards DIN VDE 0682-401 and
IEC/EN 61243-3. In order to ensure that the unit is operated
correctly and safely, read these operating instructions thoroughly
BEFORE operating the device.
The following safety precautions should be observed:
* Check the voltage tester for correct functioning immediately before
each use (as per VDE specification 0105, part 1), by connecting it
to a known voltage source (e.g. a 230V power socket). If the
indicator shows that one or more functions are not working
correctly, do not use the device any further, but have it examined
by a qualified service technician.
* Always hold the device by its handles. Avoid touching the probe
tips.
* Note that all testing for no voltage should be carried out at two
poles.
* Trouble-free operation is guaranteed at temperatures of
between -10°C and +50°C.
* Keep the device clean and dry at all times. The casing may be
cleaned by wiping with a damp cloth.
General points:
Voltages have priority. If no voltage is detected at the probe tips (<
3.0V), the device is in throughput testing mode.
1.) Function:
The device is activated and shut down at the “ON/OFF” switch. (See drawing) The “Auto Power Off” function
of the device activates after about seven minutes.
2.) 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 "000". If the LCD screen is blank or dimly illuminated, the batteries must be
replaced.
3.) DC voltage testing:
When the probe tips are connected to a DC voltage within the nominal voltage range, the reading is displayed
in volts and the “DCV” LED indicator lights up. If a negative voltage is detected at probe tip “L1”, a “-” (minus)
symbol is displayed before the reading.
4.) AC voltage testing:
When the probe tips are connected to an AC voltage within the nominal voltage range, the reading is dis-
played in volts and the “ACV” LED indicator lights up.
5.) “Data Hold” function:
Press the “Data Hold” button to save the LCD screen reading to memory. The “Data Hold” function, which is
indicated by a red LED in the display field, can be toggled by repeated pressing of the same button.
6.) Phase testing:
Bring one of the probe tips into contact with a conductor, while touching the finger contact located at the
back. When a phase of min. 100V~ is connected, the small LCD screen indicates “L1”.
7.) Rotating field testing:
Identify a phase conducting wire as described in point 6. Now connect two phase conductors to the probe
tips and touch the finger contact. If the phase connected to probe tip L2 follows the phase connected to
probe tip L1, the phase sequence is right-handed. The small display indicates “L1”. If this is not the case,
there is a left-handed field. The voltage indicator should give a reading of approx. 400V. If “L1”appears in the
small LCD screen and the only reading is 230V, only one phase conductor is connected.
Probe Tips
Finger Contact
(at the back)
ON/OFF Switch
Data-Hold Switch
