TM 10-4510-209-13&P
0059 00
Test the Heat Trace Cable
WARNING
Do not handle heat trace while it's connected to a receptacle. Ensure it has been
disconnected from receptacle and allowed to cool for at least 15 minutes before handling,
failure to do so may cause serious burn injury to personnel.
NOTE
The hose temperature must be well below the activation temperature before any test is
performed. The heat trace is fitted with an integral thermostat that activates the heat
trace element at approximately 45oF (7.2oC).
1. Unplug the heat trace plug (1).
the two flat prongs (2) of the plug (1). There should be continuity between the two flat prongs.
Replace a heat trace (3) with an open element. Refer to WP 0011 00 for installation procedures.
the each of the flat prongs (2) and the U-shaped ground prong (4). There should be no continuity
between the each flat prongs and the U-shaped ground prong. Replace a heat trace (3) with a
shorted element. Refer to WP 0011 00 for installation procedures.
4. If facilities are available to provide an ambient temperature greater than 60oF (15.5oC), allow the heat
trace to warm, then use an ohmmeter or multimeter set to read ohms to check for continuity
between the two flat prongs at temperatures greater than 60oF (15.5oC). Replace a heat trace (3)
with a shorted thermostat. Refer to WP 0011 00 for installation procedures.
4
2
1
3
0059 00-4