TM 55-4920-401-13&P
2-8. Heat Detection Systems Check (Fire
a. Turn FUNCTION SELECT, STD DAY, and
Warning). The tester can be used to check various
MASTER POWER switches to OFF position and
types of heat detecting systems including thermal
PROBE CONTROL fully counterclockwise.
switches and continuous wire heat detection
b. Connect BH405 heater cable to HEATER
systems. The tester is used in conjunction with
Tempcal probes to apply known heat to check the
CABLE receptacle and to Tempcal probe.
operating temperature of thermal detectors. Refer
c. Apply Tempcal probe to overheat detector.
to figure 2-13 and proceed as follows:
Change 2
2-12.1/ (2-12.2 Blank)
