Radio Shack 22-168A User Manual

MEASURING RESISTANCE 1. Plug the black probe into your meter’s COM
terminal and the red probe into your meter’s
WARNINGS: V/0 terminal.
* NEVER CONNECT THE TEST PROBES TO
A SOURCE OF VOLTAGE WHEN YOU
HAVE SELECTED THE OHMS FUNCTION
AND PLUGGED THE PROBES INTO THE
V/Q. TERMINAL.
© BE SURE THAT THE CIRCUIT UNDER TEST
HAS ALL POWER REMOVED AND THAT
ANY ASSOCIATED CAPACITORS ARE 2. Rotate the function selector to the desired
FULLY DISCHARGED BEFORE YOU MAKE OHM range.
A RESISTANCE MEASUREMENT.
3. Connect the probes to the device you want
The resistance measuring circuit compares the to measure.
voltage gained through a known resistance
(internal) with the voltage developed across the
unknown resistance. So, when you check in-cir-
cuit resistance, be sure the circuit under test has
all power removed (all capacitors are fully dis-
charged).
24 Resistor

Radio Shack 22-168A Specifications

General

Brand	Radio Shack
Model	22-168A
Category	Multimeter
Language	English