TS 022257
TS 022257
TM 5-6115-329-14
TO 35C2-3-440-1
Figure 4-12.
Testing for shorts.
(d) Look at the needle.
1. If the needle swings to the far right
over the “o” on the top scale (on all three multi-
meters), the circuits are shorted.
2. If the needle doesn’t move, the cir-
cuits are not shorted.
3. If the needle jumps or flickers, the cir-
cuits are occasionally shorted.
(4) Testing Resistance. To measure re-
sistance in a circuit , do the following steps:
(a) Set up and “zero” the multimeter (fig.
4-10).
CAUTION
Failure to do the following step can
damage the multimeter.
(b) Disconnect the circuit being tested. To
be safe, disconnect the battery ground strap.
(c) If the test in this manual calls for an
“ohms range” different than “RX1” or “X1”, set the
selector switch to that range (such as “RX10” or
X1O”).
NOTE
“Zero” the meter whenever you change ranges.
(d) With all three multimeters, connect the
probes across the circuit or item to be measured.
The example (fig. 4-13) shows measuring the re-
sistance of a temperature sending unit.
Figure 4-13. Testing resistance.
(e) Read the Meter. If the meter switch is
on the “RX1” or “X1” range, the reading is taken di-
rectly from the top scale. If the meter switch is ton a
different range, multiply the reading on the scale
according to the table below.
Ohms Switch
You Do
Setting
X1 or RX1
Read number on scale
X10 or RX10
Multiply reading
X1OO or RX1OO
Multiply reading
X1K or RX1K
Multiply reading
X10K or RX10K
Multiply reading
(Remember: K
by 10
by 100
by 1,000
by 10,000
= 1,000)
4-20
