SECTION III CALIBRATION PROCESS

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

identification number as listed in tables 2 and 3. For the

remove water by opening the drain cock at the

identification of equipment referenced by item numbers

bottom of the bowl.

prefixed with A, see table 2, and for prefix B, see table

Close the fill port.

Slowly turn the BLEED VALVE clockwise until

7. Equipment Setup (fig. 2). a. Adjust mechanical

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

Insert the stopper (B3) into the canteen cap

Hz receptacle.

adapter.

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.