Radio Shack Marine Instruments Marine Instruments User Manual


 
17
Care
If the function selector is set to
R
×
××
×
1K
, multiply that reading by
1000 to compute the resistance.
For example, if the needle points
to
1
, the resistance is 1000 ohms
(1
×
1000 = 1000
).
Hint:
If you are identifying cathode
and anode ends or the type of transis-
tor (PNP or NPN), the actual polarity
of the multimeter's voltage is the op-
posite of the polarity suggested by the
test probes' color. The red test probe
is the negative source, and the black
test probe is the positive source.
ˆ
Care
Keep the multimeter dry; if it gets wet,
wipe it dry immediately. Use and
store the multimeter only in normal
temperature environments. Handle
the multimeter carefully; do not drop
it. Keep the multimeter away from
dust and dirt.
Modifying or tampering with the multi-
meter’s internal components can
cause a malfunction and might invali-
date its warranty. If your multimeter is
not performing as it should, take it to
your local RadioShack store for assis-
tance.
CLEANING
To keep the multimeter looking new,
occasionally wipe it with a cloth slight-
ly dampened with water. Do not use
harsh chemicals, cleaning solvents,
or strong detergents to clean the mul-
timeter.
WARNINGS:
DO NOT LET ANY WATER DRIP
INSIDE THE MULTIMETER
WHILE CLEANING IT.
MAKE SURE THAT THE MULTI-
METER IS COMPLETELY DRY
BEFORE USING IT.