UNI-T UT20B Operating Manual page 20

Note
l
If the value of resistance to be measured is unknown, use the maximum
measurement position (2000k ) and reduce the range step by step until a
satisfactory reading is obtained.
l
The test leads can add 0.1
obtain precision readings in low-resistance measurement, 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 measurement (>1M ), it is normal taking several seconds
to obtain a stable reading.
l
If reading with shorted test leads is not 0.5 , check for loose test leads, or
incorrect function selection.
Model UT20B: OPERATING MANUAL
Measurement Operation (10)
to 0.2 of error to resistance measurement. To
20