TM 5-3610-252-14
Table 3-3. ORGANIZATIONAL TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
HUMIDITY INDICATOR NEEDLE REMAINS DEFLECTED AND CANNOT BE ZEROED WITH KNOB.
Test operation of reader as follows:
CAUTION
Do not attempt to use ohmmeter or any other dc measuring device to check
continuity of temperature or humidity elements or sensor will be damaged.
a.
Unplug cable from probe.
Leave cable connected to reader.
b. Connect cable test plug to end of cable.
NOTE
If cable test plug is not available, connect 300K (5%) resistor between
pins 1 and 2 at end of cable.
c.
Slide power switch up to ON.
d. Slide TEMP/RH switch up to TEMP.
e.
Rotate null control knob until HUMIDITY INDICATOR needle is at center
point.
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