PYROMETER CIRCUIT. (Cont)

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Step 1.

Disconnect leads from pyrometer and thermocouple. Connect multimeter to

pyrometer leads. If multimeter indicates 0 ohms, go to step 2. If multimeter

indicates infinity, replace pyrometer. Refer to page 2-1053. Connect leads.

Step 2.

Connect multimeter to thermocouple leads. If multimeter indicates 0 ohms,

the pyrometer circuit is operating normally. If multimeter indicates infinity,

replace thermocouple. Refer to page 2-1029. Connect leads.

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