Fluke 8845A, Руководство пользователя

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Making Measurements
Measuring Capacitance (8846A only)
4
4-13
2. Press
K
.
0.0333
uA
~
F1 F2 F3 F4 F5
caw08f.eps
3. With the test leads connected to the
400 mA
and
Input LO
connectors, press the
€A
soft key as shown above, if not already highlighted. If the test leads are connected to
the
10A
and
Input LO
connectors, then press the
10A
soft key.
4. Apply power to the measured circuit and read the current in the Meter’s display.
Function modifiers:
Filter
Displays the filter menu. For best accuracy and stable readings,
choose a filter based on the lowest frequency to be measured and the
accuracy needed.
3HZ SLOW
Provides higher measurement accuracy on ac signals
between 3 Hz and 20 Hz. However, the measurement
cycle time is longer than it is when using the 20 Hz
filter.
20HZ
Provides higher measurement accuracy on ac signals
between 20 Hz and 200 Hz. However, the measurement
cycle time is longer than it is when using the 200 Hz
filter.
200HZ
Provides accurate measurements on ac signals 200 Hz
and above.
2ND MEAS
Cycles the secondary display through the measurement functions
listed below, and then off. When a second measurement function is
selected, the
2ND MEAS
soft key label is highlighted.
IDC
- Displays the dc current the ac signal is riding on.
Frequency
- Displays the frequency of the ac signal on the Meter’s
current connectors (
Input Lo
and
400 ma
or
10A
) connectors.
Measuring Capacitance (8846A only)
The Fluke 8846A is capable of measuring capacitance from 1 pF to 100 mF (0.1 F).
To make a capacitance measurement:
1.
Press
C
. An example of the capacitance display is shown below.
0.000
nF
F1 F2 F3 F4 F5
caw10f.eps