User Manual

2. Plug the black test lead into the COM-terminal and the red test lead into the V/Ω-terminal.
3. Remove power from the circuit.
4. Connect the test lead tips to the object to be measured.
Note:
The buzzer will sound, if the measured resistance from the components is below about 50 ohms
approx. and the middle secondary display will show "Shrt" to indicate a state of short.
7.7. Measuring Resistance
Warning !!
Never connect the test leads to a source of voltage, when you have selected the ohms function and
plugged the test lead jack into V/Ω terminal.
Be sure, that the circuit under test has all power removed and any associated capacitors are fully
discharged before you make a resistance measurement.
Follow these steps to measure resistance.
1. Press FUNC-Switch "OHM".
2. Plug the black test lead into the COM-terminal and the red test lead into the V/Ω-terminal
3. Connect the test leads to the object to be measured.
Notes:
* The resistance in the test leads can diminish the accuracy on the lowest 200 Ohm range. The
error is usually 1 to 0,2 ohms for a standard pair of test leads. To determine the error, short the
test leads together and read the resistance of the test leads.
* When measuring resistance, be sure, that the contact between the test leads and the object is
good. Dirt, oil, solder flux or other foreign matters can cause incorrect readings.
* If the measured resistance value exceeds the max. value, "OL" will be displayed indicating
overload and bar graph will be flashing.
* For resistance of approx. 2 MOhm and above, the display might take a few seconds to stabilise.
This is normal for high resistance readings.
* During resistance measurements, the present value is in the main display, the measured value
taken 1 second earlier in the upper secondary display, the measured value taken 2 seconds
earlier in the middle secondary display and the measured value taken 3 seconds earlier in the
lower secondary display.
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