1.
Opening for current measurement
2.
Test leads
3.
LED display
4.
LCD display
5.
On/Off and function key
6.
Flashlight and function key
7.
Battery compartment
8.
Cable break sensor area
General
Voltages have priority. If no voltage is applied to the test probes ( ≥1 V ), the device is in continuity test mode.
Function
To switch on the device, press the On/Off key.
The device switches off automatically after about 10 seconds if no signal is detected at the test probes. The measuring point illumi-
nation switches off after about 30 seconds.
Screwing or unscrewing the test probe adapters makes testing at sockets more convenient.
The nominal current In is a maximum of 3.5 mA.
Self test / Auto Power-Off
When the instrument is switched on for the first time, either when new batteries are inserted, when the test probes are held together
or by pressing the power button when the instrument is off, all the indicators in the LCD display light up briefly. Shortly thereafter,
the instrument switches to voltage mode. If the display of one or more functions fails, the device may no longer be used and must
be checked by qualified personnel. Hold the test probes together for testing; this should be done shortly before and after use to
ensure that the device is ready for operation. If the LCD does not light up or only lights up weakly, the batteries must be replaced. If
the instrument does not work even with new batteries, it must be protected from misuse. After some time without use, the device
will automatically switch off by the "Auto Power Off" function.
Check voltage
Contact the object to be measured with the test probes. The test probes can be held in the hand or plugged in at the top of the hou-
sing. When the test probes are plugged in, they have a distance of 19 mm to be plugged into sockets with one hand. The applied
voltage is indicated with the LEDs and on the LCD. The sound generator and vibration function turn on above a voltage of 50V AC
or 120V DC.
®
Testboy
TV 230
Operation
15