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TM 55-4920-383-13&P
Table 2-1. Front Panel Controls, Indicators and Connectors-Continued
Fig. 2-1
item no.
1-
Continued
2
3
4
5
Panel component
IND TEST-A/C +
PROBE SIM + COMP
SIM position
CAPACITANCE- LOW
ADJ control
CAPACITANCE-HIGH
ADJ control
DISPLAY TEST switch
CAPACITANCE STANDARDS
placard
Function
Connect parallel combination of aircraft tank
units and simulated PROBE and parallel
combination of aircraft compensator and
simulated COMP to indicator under test.
Used for low range calibration of capacitance
measurement circuitry when CAPACI-
TANCE RANGE switch is in LOW ADJ
position.
Used for high range check of capaci-
tance measurement circuitry when
CAPACITANCE RANGE switch is in
HIGH ADJ position.
When depressed causes digital display to
read 8.8.8.8.8.8. Failure. of this test
identifies malfunctioning digits in display.
Placard is marked with capacitance values
of Test Set internal LOW and HIGH standard
capacitors.
2-4
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