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h) Capacity Measuring
Make sure that all circuit parts, circuits and components and other objects of measurement are dis-
connected from the voltage and discharged.
Always observe polarity with electrolyte capacitors.
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Switch on the DMM and select measuring range
.
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Plug the red measuring line into the V measuring socket (7) and
the black measuring line into the COM measuring socket (8).
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The display shows the unit “nF”.
Due to the sensitive measuring input, the display may show a
value if the measuring lines are “open”. By pressing the button
“REL/PC”, the display is set to “0”. The basic value (rel differ-
ence) is displayed in the upper, small display. The autorange
feature is deactivated.
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Now connect the two test prods (red = plus/black = minus) with the
object to be measured (capacitator). After a short while the display
shows the capacity. Wait until the displayed value has stabilised.
This may take a few seconds for capacities of >40 µF.
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If “OL” (overload) appears on the display, you have exceeded the
measuring range.
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After measuring, remove the measuring lines from the measured object and turn off the DMM.
