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TM 55-6695-220-13&P
CHAPTER 2. OPERATING INSTRUCTIONS
Section I. DESCRIPTION AND USE OF OPERATOR'S CONTROLS AND INDICATORS
2-1.
THERMOCOUPLE INDICATOR TEST PROCEDURES.
2-1
Make sure the RESISTANCE AND VOLTAGE FUNCTION SWITCH is set to the OFF
position and the COARSE AND FINE RHEOSTATS are turned fully counterclockwise
before commencing tests. This action will prevent the VOLTMETER pointer from
striking harder than necessary the upper stop because of no load present across the clip
leads.
a.
Preliminary. As preparatory data, determine the types of material used in the thermocouple sensor and the
resistance of the thermocouple leads by referring to the appropriate service manual or indicator nameplate. The types of
thermocouple sensors and the temperature ranges over which they can be tested are presented as reference below and
can be correlated by looking at the TEMPERATURE SELECTOR SWITCH dial.
2-1
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