Aktakom ??M-1130, Руководство пользователя

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АМM-1130
25
Capacitance Measurement
The measurement chart is seen in figure 3-6. the measurement range of capacitance is of
10PF
～
220mF and the measurement methods are as follows:
1. Turn on the power switch and set the rotary switch to the position .
2. Insert the red and black testing lines into the
VΩHz
input end and the COM input end respectively.
3. If exists voltage in the capacitor, connect the two ends of the capacitor for a short time to discharge.
4. Connect the red and black probes to the two ends of the capacitor, if the measured capacitor is heteropolar, it is
necessary to connect the red probe to the positive polarity of the capacitor and the black probe to its negative polarity.
5. Read the capacitance from the display screen. If capacitance value >220mF, the meter will display OL, while
capacitance value <10pF, it will display zero.
6. It is possible to select range manually by pressing the RANGE key. The indicator of range indicates the value of range.
If OL displaying during manual range measurement, it is necessary to select a larger range. If it has been the largest
range, which means capacitance value >220mF.
Notes: When performing measurement on 10mF capacitor, in order to ensure measurement accuracy the meter takes a relative long
time to discharge capacitor, so it is relatively slow in refreshing the measured value. In addition, not to perform Capacitance
measurement on a circuit board on which there are other parallel devices, for that may leads to very large error.