Figure 2. Depth gage (caisson)

TB 9-4220-215-35

a. Connect equipment as shown in figure 2.

Figure 2. Depth gage (caisson) - equipment setup.

b. Position controls on pneumatic pressure standard as indicated in (1) through (7)

below:

(1) Set POWER switch to ON and allow 1 minute for warm-up.

(2) Press SOURCE pushbutton to INT.

(3) Press UNITS DISPLAYED pushbutton to PSIA.

(4) Press RANGE pushbutton to 0-250.

(5) Press SENSITIVITY pushbutton to HIGH.

(6) Press RESET pushbutton.

(7) Press ZERO pushbutton.

13. Depth Gage (Caisson)

NOTE

Recompression chamber is to be operated by shop personnel

trained in the operation of diving equipment.

a. Performance Check

(1) Refer to tables 2 through 6 and select appropriate table for TI.