Capacitance Measurement - HT HT32 User Manual

4.3.8. Capacitance measurement

Before taking any in circuit or capacitance measurement, remove power
from the circuit being tested and discharge all capacitors. Use the short test
lead pair for measurement in order to reduce the stray capacitance. Before
connecting the test capacitor, note the display, which may show a reading
other than zero whenever the range is changed. Subtract this offset reading
from the test result of a capacitor to obtain the true value. Connect the test
capacitor to the input clamps noting the polarity connections when required.
1. Turn the selector on
2. Insert the test leads into the jacks, the red plug into
plug into COM jack (Fig. 9).
3. Connect the test leads to the capacitor terminals taking care of the shown polarity. The
capacitance value will be displayed with automatic detection of the range.
4. Press RANGE key to activate the manual mode; the "AUTO" symbol disappears from
display. Press cyclically RANGE to change the position of the decimal point on the
display. To activate the Autorange function keep pressed RANGE for at least 1 second.
5. The message "OL" means that the capacitance exceeds the measuring limits. In this
case disconnect the test leads from the circuit under test to avoid damaging the
instrument or endanger your own safety.
6. For minimum and maximum value measurement and HOLD function please refer to
paragraph 4.2.
CAUTION
Fig. 9: Capacitance measurement
.
EN - 16
HzVA jack and the black
HT32