TB 3-6665-313-50
SECTION III
CALIBRATION PROCESS
NOTE
Unless otherwise specified, verify the results of each test and take corrective action whenever
the test requirement is not met before continuing with the calibration.
g. Allow TI to operate for at least 10 minutes.
6. Preliminary Instructions. a. The instructions
h. Check that the water level in the bubbler
outlined in this section are preparatory to the calibration
assembly is approximately 2 inches above the tip of the
process. Personnel should become familiar with the
submerged tube.
entire bulletin (or specified sections) before beginning
the calibration.
NOTE
b. Items of equipment used in this procedure are
Add water to the bubbler assembly through
referenced within the text by common name and item
the fill port on top of the assembly and
remove water by opening the drain cock at the
identification of equipment referenced by item numbers
bottom of the bowl.
i.
Close the fill port.
j.
Slowly turn the BLEED VALVE clockwise until
bubbles form at the tip of the tube in the bubbler
zero-adjustment on TI gage to zero.
assembly. This should occur when the gage indicates
b. Set POWER switch to OFF.
approximately 2 inches of water.
c. Turn BLEED VALVE fully counterclockwise.
k. Decrease the reading by one graduation. The
d. Set TEST-VERIFICATION control to TEST.
formation of bubbles should stop.
e. Connect power cable connector to 115-volt, 60
l.
Insert the stopper (B3) into the canteen cap
Hz receptacle.
adapter.
f.
Set POWER switch to ON. Motor should
m. Turn the BLEED VALVE to obtain a reading of
operate.
8 inches of water on the gage. No bubbles should
appear.
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