Capacitance Measurement - UNI-T UT39A Operating Manual

H. Capacitance Measurement (see figure 8)
Warning
To avoid damage to the Meter or to the equipment
under test, disconnect the tested circuit power when
measuring on line capacitors and discharge all high-
voltage capacitors before measuring capacitance.
Use the DC voltage function to confirm that the
capacitor is discharged.
Never attempt to input over 60V in DC or 3V rms in
AC to avoid personal dangerous.
To measure capacitance, connect the Meter as follows:
1. Insert the capacitor to be tested into the capacitance
jack.
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
For testing the capacitor with polarity, connect the red
test lead to anode & black test lead to cathode
l
When the tested capacitor is shorted or the value is
overloaded, the LCD display "1".
l
To minimize the measurement error caused by the
distributed capacitor, the connection should be as short
as possible.
l
It is normal to take a while for zeroing when changing
over the measurement range. This process will not
affect the accuracy of the final readings obtained.
Model UT39A/B/C: OPERATING MANUAL
( figure 8)
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