Figure 2. Leak check - equipment setup.

TB-9-6685-330-35 Pressure Gages Differential (General) Manual
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TB 9-6685-330-35

NOTE

All connections should either use a crush washer or Teflon tape

to assure a properly sealed connection.

g. Position controls on PNEUMATIC PRESSURE STANDARD (fig. 2) as indicated in

(1) through (7) below:

(1) Set power switch to ON and allow approximately 30 minutes for warm up.

(2) Press SOURCE pushbutton to INT.

(3) Set UNITS DISPLAYED switch to PSIA.

(4) Press RANGE pushbutton to 0-250.

(5) Press SENSITIVITY pushbutton to HIGH.

(6) Press RESET pushbutton.

(7) Press ZERO pushbutton.

h. Adjust WATER PUMP NITROGEN REGULATOR (fig. 2) fully ccw.

i. Open the INLINE VALVE (fig. 2); close the VENT VALVE (fig. 2).