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6. Testing resistance and continuity
When the instrument is switched-on, press button
„Ω/V“. “Ol” and “MΩ” appear on the LCD.
Securely contact the measuring points with the test
probes.
Resistance values 0 ...10 kΩ
the measured value
is indicated on the LCD in „kΩ“.The green LED “Ω“
lights up at the same time, and an acoustic signal is
generated.
Resistance values 10 kΩ ...1,999 MΩ
the measured
value is indicated on the LC-Display in „kΩ“ or in
„MΩ“. The LED “Ω“ lights up at the same time, and no
acoustic signal is generated.
Resistance values > 2 MΩ
the display passes to
overflow and „OL” and “MΩ“ appear on the display.
The LED does not light up and no acoustic signal is
generated.
Function to “hold” measured values (HOLD)
As long as you keep pressed button „HOLD“ you can
“record” the latest measured resistance value on the
LC-display.
Zero balancing
The zero point in the resistance measuring range
can be recalibrated if necessary:
Hold the test electrodes together and press and
hold button „Ω/V“ until “CAL” appears in the display
and the green LED Ω flashes.
When 000 is indicated and the LED Ω lights up
continuously, then calibration has been carried out
sucessfully. During this process an acoustic signal is
generated.
Note!
During continuity tests, the plus pole of the measu-
ring voltage is located at the test probe designated
with +L1. The measuring current has a constant
value of 5 μA for values of 0 ... 10 kΩ; 1 μA for 10 ...
1999 kΩ. When in this operating mode a voltage of
24 V or more is impressed, then the device switches
automatically to „voltage testing”.
5. “Hold” test results (HOLD)
The maximum voltage value can be „stored“ on the
display when keeping pressed button „HOLD“. The
value is recorded for approx. 30 seconds or until you
press button „HOLD“ again. The Hold-function is
stopped when again a voltage is impressed.
Note!
When the measured value does not vary for 2
sec, then the maximum value is recorded.
