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c) DC polarity test
The receiver unit can determine the polarity of low voltages of 5 to 16 V/DC.
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Proceed as follows to perform the continuity test:
-
Switch the receiver unit on by pressing the switch “ON/OFF” (13). The switch
snaps into place and the LED display (1) shows “00”. The operating indicator
“OP” will light up. If “OP” is not lit, please press the button “R test” (2) to
release it.
-
Press the button “V check” (3). The display “00” will go out. The polarity test
function is now active.
- Connect the red banana clip with the positive pole and the black banana clip
with the negative pole of the voltage source. The LED indicator now shows
“UU”.
- If there is no display, the polarity may be reversed or the voltage is outside of the test range (5 – 16 V/DC).
Perform a counter-polarity test to limit the two possibilities down to one.
-
Release all press switches and turn the receiver unit off manually (button “ON/OFF”).
d) Cable allocation
Up to 16 conductors can be indentified with the cable allocation function. All you need for this is a known reference
line/cable/pipe, e.g. a domestic water or heating pipe.
The transmitter (REMOTE UNIT) codes each test line with a number. These numbers are indicated on the corres-
ponding banana clips.
The receiver (DMM) decodes the signal and indicates the current line number on the LED display.
