When measuring at 20 and 200 range, the test clips
can add 0.1 to 0.3 error to resistance. To obtain precise
readings in these low-resistance measurement, that is
the range 20 and 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 clips.
Then use the equation:
measured resistance value (Y) – (X) = precision readings
of resistance.
The Meter displays “1” when there is no input, for
example, open circuit situation.
For high resistance measurement (>1M ), it is normal
taking several seconds to obtain a stable reading.
When resistance measurement has been completed,
disconnect the connection between the testing clips and
the circuit under test and remove the testing clips away
from the input terminals of the Meter.
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Model UT602/603: OPERATING MANUAL
Note
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