TM 5-6115-332-14
P-8-614-14
TO 35C2-3-424-1
(d) Look at the needle.
1. If the needle swings to the far right
over the “O” on the top scale, the circuits are short-
ed.
2. If the needle doesn’t move, the cir-
cuits are not shorted.
3. If the needle jumps or flickers, the
circuits 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-
9).
CAUTION
Failure to do the following steps 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
“X10”).
NOTE
“Zero” the meter whenever you change ranges.
(d) Using either type of multimeter, connect
the probes across the circuit or item to be measured.
The example (fig. 4-12) shows measuring the re-
sistance of a temperature sending unit.
(e) Read the meter (fig. 4-13). If the meter
switch is on the “RX1” or “X1” range, the reading is
taken directly from the top scale. If the meter
switch is on a different range, multiply the reading
on the scale according to the table below.
Ohms Switch Setting
You Do
X1 or RX1
Read number on scale.
X10 or RX10
Multiply reading by 10.
X100 or RX100
Multiply reading by 100.
X1K or RX1K
Multiply reading by 1,000.
X10K or RX10K
Multiply reading by 10,000.
(Remember: K = 1,000)
Figure 4-12. Testing resistance.
4-25
