E. Measuring Resistance - UNI-T UT50E Operating Manual

Measurement Operation(7)
Warning
To avoid damages to the Meter or to the devices under
test, disconnect circuit power and discharge all the
high-voltage capacitors before measuring resistance.
The resistance ranges has 7 measurement positions on
the rotary switch: 200 , 2k , 20k , 200k , 2M ,
20M and 200M
To measure resistance, connect the Meter as follows:
1. Insert the red test lead into the V
the black test lead into the COM terminal.
2. Set the rotary switch to an appropriate measurement
position in range.
3. Connect the test leads across with the object being
measured.
The measured value shows on the display.
Note
l The test leads can add 0.1 to 0.3 of error to the
resistance measurement. To obtain precision readings
in low-resistance, that is the range of 200 , short-circuit
the input terminals beforehand and record the reading
obtained (called this reading as X). (X) is the additional
resistance from the test lead.
Then use the equation:
measured resistance value (Y) – (X) = precision
readings of resistance.
l For high resistance (>1M ), it is normal taking several
seconds to obtain a stable reading.
l When there is no input, for example in open circuit
condition, the Meter displays "1".
When resistance measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test.
Model UT50E: OPERATING MANUAL
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Cterminal and
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