28
MEASURING RESISTANCE
The resistance-measuring circuit compares the voltage
gained through a known resistance (internal) with the
voltage developed across an unknown resistance.
1. Remove all power from the circuit under test and dis-
charge all capacitors.
2. Set the selector to
W
.
Caution: NEVER CONNECT THE PROBES TO A
SOURCE OF VOLTAGE while the selector is set to
W
.
Note: With no resistance connected across the test
leads (resistance infinite),
OL.
(overload) appears on
the display when you set the selector to
W
. This is
normal.
3. Plug the red test lead into the
V•W•
•mA•mA•
jack
and the black lead into the
COM
jack.
4. Connect the probes across the circuit or component
you want to measure.
5. The meter automatically moves to the proper range.
If you select manual range control, press
RANGE
to
change the range.
22-178.fm Page 28 Friday, August 6, 1999 11:38 AM
