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 TM 55-1905-219-14-9
4-64.1. TANK LEVEL INDICATION - RECEIVER - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
ADJUSTMENTS AND ALIGNMENTS (Cont)
(g) Adjust the FLOAT SIMULATOR control to bring meter deflection to the desired low-level alarm
setting marked on the meter face.
NOTE
If a low-level alarm occurs in a tank in which a level link is used,
adjust the FLOAT SIMULATOR control to bring meter deflection
to a point slightly (3/16 to 1/4 inch) below the alarm setting
marked on the meter.
(h)
Adjust Alarm Circuit Threshold Adjust potentiometer on the low-level alarm control module printed
circuit board associated with the meter that has deflected until the LOW LEVEL lamp for that meter just lights.
NOTE
Perform steps (i) and (j) only for those tanks, the receiver
circuits for which include high level alarm capabilities.
(i) Adjust the FLOAT SIMULATOR control to bring meter deflection to the desired high-level alarm
setting marked on the meter face.
NOTE
If a high-level alarm occurs in a tank in which a level link is
used, adjust the FLOAT SIMULATOR control to bring meter
deflection to a point slightly (3/16 to-1/4 inch) below the alarm
setting marked on the meter.
(j) Adjust Alarm Circuit Threshold Adjust potentiometer on the high-level alarm control module
printed circuit board associated with the meter that has deflected until the HIGH LEVEL lamp for that meter just
lights.
(k) Place the ON-OFF switch to the OFF position.
(l) Disconnect the float simulator cable leads from the terminal board for the receiver circuits being
adjusted and connect them to the float simulator terminal board.
4-1361
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