B&K Precision 830C - Manual - Manual (Page 101)

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Measuring large capacitors: Measuring very large
capacitors, for example a 100 mF value, requires a
long time. . In this case, after inserting the capacitor
into the meter’s terminals, the meter display may
seem unresponsive and not respond to key presses.
This is normal, and indicates that the meter is
currently charging the capacitor. Depending on the
size of the capacitor, this charging period can take up
to 2 minutes until the meter becomes responsive and
display the result. If manual range is to be used,
please set to the correct range first before inserting
the capacitor. Otherwise, it will take much longer to
make the measurement.
When using tolerance and compare mode, it will also
take longer time for the meter to respond with
readings if large capacitors are being tested.
SUPPLEMENTAL
INFORMATION
Guard Terminal
One of the input sockets and terminals is labeled as
“GUARD”. This terminal does not have to be used in
all instances for the meter to make measurements.
But in some instances, it is very useful.