(7) Adjust the mode selector control to spontaneous breathing on and rotate
the following controls fully clockwise.
(b) Expiratory flow.
Inspiratory time limit.
(d) Red handle of the outflow valve (proximal airway pressure (PAP
Rotate the following controls fully counterclockwise.
(b) Inspiratory time.
(d) Inspiratory relief pressure.
(9) Turn the source gas on, pull the red locking ring forward, and rotate the
calibration regulator clockwise for a pressure of 50psig (pounds-per-square-inch-gravity)
(static). Lock the regulator by pushing the red ring back.
(10) Observe the pressure gauge on top of the ventilator for an operating
pressure of 45 to 55psig as indicated by the green wedge. If the pressure is within the
green wedge (45-55psig), proceed to paragraph c below. However, if the indicated
pressure is outside the wedge, refer to Table 2-1 for procedures on troubleshooting the
source pressure gauge.
c. Calibrate the Ventilator.
(a) Using slot-head screwdriver, remove the black bezel ring around the
face of the manometer.
(b) Use the same screwdriver to rotate the adjusting screw at the 12
o'clock or 3 o'clock position, left or right as needed, to center the needle at zero.
(c) Tap the gauge (to shock the needle). Check to ensure the gauge
still registers zero.