(d) Reinstall the bezel and recheck for zero. Table 2-2 explains
troubleshooting procedures for the airway manometer.
┌──────────────────┬────────────────────────┬───────────────────┐
│ Problem
│ Potential Cause
│ Corrective Action │
╞══════════════════╪════════════════════════╪═══════════════════╡
│ Airway manometer │ Gas flow delivery to
│ 1. Reduce flow to │
│ will not
│ breathing circuit
│
ventilator to │
│ calibrate to
│ manometer is measuring │
zero.
│
│ zero.
│
Recalibrate.
│
│
│ through tubing.
│
│
│
│
OR
│
│
│
├────────────────────────┼───────────────────┤
│
│ Internal malfunction
│ 2. Replace the
│
│
│ of the manometer.
│
manometer with │
│
│
│
P/N 4407R.
│
│
│
│
Ensure a .013D │
│
│
│
orifice (P/N
│
│
│
│
4016D) is
│
│
│
│
placed in the │
│
│
│
tubing attached│
│
│
│
to the back of │
│
│
│
the manometer. │
└──────────────────┴────────────────────────┴───────────────────┘
│ Manometer will
│ External tube discon- │ 3. Ensure airway │
│ not register
│ nected.
│
pressure tube │
│ pressure change │
│
is attached to │
│ with ventilator │
│
patient con-
│
│ active.
│
│
nection and
│
│
│
│
outlet under
│
│
│
OR
│
ventilator
│
│
│
│
marked "Airway │
│
│
│
Pressure
│
│
│
│
Monitor."
│
│
├────────────────────────┼───────────────────┤
│
│ Internal tube discon- │ 4. Ensure tube is │
│
│ nected.
│
secured from
│
│
│
│
manometer to
│
│
│
│
airway-pressure│
│
│
│
monitor outlet │
│
│
OR
│
inside base of │
│
│
│
ventilator.
│
│
├────────────────────────┼───────────────────┤
│
│ Internal malfunction
│ 5. See action
│
│
│ of the manometer.
│
#2 above.
│
│
│
│
│
│
│
│
│
└──────────────────┴────────────────────────┴───────────────────┘
Table 2-2. Airway manometer troubleshooting.
MD0355
2-8