Promax PD-185, Instruction Manual

Page: 53 / 60

USER’S MANUAL PD-185
11/2015 Page 21
4.11 Capacitance measurements
CAUTION
Turn off power and discharge the capacitor before
attempting a capacitance measurement. Use the DCV
function to confirm that the capacitor is discharged.
1. Set the rotary switch position ( ).
2. Connect the COM/Cx(-) and the Cx(+) / μ A /mA leads to the
capacitor. Observe polarity when measureing polarized
capacitors.
3. Read the capacitance directly from the display. A shorted
capacitor will indicate an overrange. An open capacitor will
indicate near zero on all ranges.
4. To achieve maximum precision, passing the desired scale
using the manual range button RANGE , then press the REL
button to zero out test lead capacitance before the
measurement.
5. The bar graph is disabled in capacitance measurement
mode.
6. In 4mF and 40mF ranges, the bar graph on LCD will be in
action vack and forth. The is a charging mode during, not a
indication of the measured reading.
7. When the capacitor to be tested is connected, if "disc"
symbol indicates on LCD, it means there is voltage existing
the tested capacitor and need to be discharged before
testing.