TB 9-4920-367-24
(2) Open nitrogen tank valve and adjust manifold bracket regulator until output
gage indicates 25 psi.
(3) Operate pneumatic pressure standard for zero psi indication on TI. Pneumatic
pressure standard will indicate between 14.45 and 14.95 psia.
(4) Repeat technique of (3) above for each TI indication listed in table 5. Pneumatic
pressure standard will indicate within the limits specified.
Table 5. Pressure Check
Test instrument
Pneumatic pressure standard indications
indications
(psia)
(psi)
Min
Max
5
19.45
19.95
10
24.45
24.95
15
29.45
29.95
20
34.45
34.95
(5) Adjust pneumatic pressure standard for zero indication on TI.
(6) Close nitrogen tank valve and adjust regulator for zero output.
(7) Close nitrogen tank valve and bleed pressure from lines using manifold bracket
vent valve.
(8) Perform vent operation on pneumatic pressure standard
b. Adjustments. No adjustments can be made.
10. Final Procedure
a. Deenergize and disconnect all equipment and reinstall protective cover on TI.
b. Annotate and affix DA label/form in accordance with TB 750-25.
