Elenco Digital Bench Multimeter - Manual (Page 16)

DVM645BI GB 15
Red
Measuring Capacitance
Figure 2-6. Measuring Capacitance
WARNING
Turn off the power to the device under test and discharge all
capacitors.
c Turn the selector to capacitance.
d Connect the leads as shown: insert the black and red test leads into the COM
and V Ω Ω Ω Ω Hz input terminals respectively.
e is not available with capacitance, all other buttons can be used.
1. Turn off the power to the device under test and discharge all capacitors.
2. Completely discharge the capacitor before measuring its capacitance value.
3. Set to the capacitance range that gives the most accurate reading or select
auto range.
4. Connect the crocodile clips to the capacitor leads or insert the capacitor leads
into the multimeter measuring socket. Always observe the correct polarity when
measuring electrolytic capacitors.
5. Read the capacitance value directly from the display. The accuracy of the
capacitance measurement can be improved by first pressing the button
(Relative mode) in order to zero the display and automatically subtract the
residual multimeter and test lead capacitance. The Relative mode also selects
manual range.
6. Residual charge in the capacitor, or capacitors with poor insulation resistance
or poor dielectric absorption may cause measurement errors.
NOTE: A safe way to discharge a capacitor is to connect a 100k Ω resistor across
the two capacitor leads.