UNI-T UT71A Operating Manual page 43

2. Set the rotary switch to
the Meter may display a fixed reading which is a
internal distributed capacitor value. For testing less
than 10nF capacitor, the tested value must subtract
the internal distributed capacitor value to maintain
the accuracy.
To improve the measurement accuracy of small value
capacitors (less than 10nF), press REL
test leads open to subtract the residual capacitance
of the Meter and leads.
3. It is recommended to use test clip to carry out
measurement to reduce the effect of internal
distributed capacitor.
Note
l
The LCD displays OL indicating the tested capacitor
is shorted or it exceeds the maximum range.
l
Capacitors larger than 400µF take longer time. The
analogue bar graph shows the time left before
finishing the measurement.
40
measurement mode,
with the
Model UT71A/B/C/D/E: OPERATING MANUAL
l
When capacitance measurement has been
completed, disconnect the connection between the
testing leads and the circuit under test and remove
the test leads away from the input terminals of the
Meter.