27
3. Plug the black test lead into the
COM
jack and the red
test lead into the appropriate jack.
4. Remove power from the circuit under test and dis-
charge all capacitors.
5. Break the circuit at the appropriate point.
6. Connect the probes in series with the circuit.
7. Apply power and read the current.
If the measured current’s polarity is negative, a minus
sign appears before the value.
If you are using the 20A jack and setting, and the
measurement is less than 320 mA, remove power
from the circuit, move the red test lead to the
V•W•
•mA•mA•
jack, set the selector to
32/320 mA
,
and apply power to the circuit.
If you are using the 32/320 mA jack and setting, and
the measurement is less than 3.2 mA, move the red
test lead to the
V•W•
•mA•mA•
jack, set the selec-
tor to
320/3200 mA
, and apply power to the circuit.
Note: If the meter does not show a reading, check
the fuses (see “Fuse Replacement” on Page 33).
22-178.fm Page 27 Friday, August 6, 1999 11:38 AM
