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2. PILOT VALVE BLEED
With both supplies on, place your ear near back of case. An audible internal leak is
normal.
3. PILOT VALVE SEAL
With both supplies pressurized and ON/OFF valve to OFF, occlude the circuit
exhalation valve exhaust port and observe the manometer on the unit. There
should be no continuous rise in pressure indicated by manometer.
4. MANOMETER
Using a variable low-pressure source and known standard, verify 3% full-scale
accuracy and a zero of +/- 1 cm.
5. RELIEF VALVE
CAUTION:
Proceed with care. If the relief valve is malfunctioning, damage to the
manometer may occur during this check.
NOTE:
The point at which the relief valve begins to fully open may cause oscillation
in the manometer. This is normal.
Set Flow Rate to minimum flow. Set ON/OFF switch to ON. Occlude circuit
exhalation valve exhaust port and observe manometer. Slowly increase the flow
rate to 20 LPM. A minimum of 100 cm of pressure should be indicated during
inspiratory. Continue to slowly increase flow to 75 LPM. The pressure during
inspiratory should not be less than 100 cm or greater than 130 cm.
6. MAXIMUM PRESSURE
Set INSPIRATORY TIME to 2 sec. Set ON/OFF switch to ON. Observe the
manometer while increasing the flow rate through its entire range. The circuit
pressure during inspiratory must be 100 cm or greater through entire flow range.
7. MAXIMUM PRESSURE ZERO
Turn Maximum Pressure knob fully CW. Set ON/OFF switch to ON. Observe the
manometer. Except at start of inspiratory, no more than 1 cm rise in pressure
should be observed.
8. FAILSAFE
Set ON/OFF switch to ON. Manometer should indicate Maximum Pressure during
Inspiratory. Slowly decrease the logic supply pressure. At a supply pressure of 30
PSI or less, the patient circuit should stop pressurizing while the unit continues to
cycle.
9. PEEP PRESSURE
Turn PEEP knob fully CCW and install test lung at patient end of circuit. Set
ON/OFF switch to ON. The test lung should fill by the second breath and the
manometer should indicate a PEEP pressure of 25 cm ±3. Switch
CYCLE/MANUAL CPAP switch to MANUAL CPAP. Unit will continue cycling
without inspiratory pressurization and with no CYCLE INDICATOR action. PEEP
pressure should be 25 cm ±3. Press and release the Manual Button. A
pressurized bolus of gas will be delivered.
Summary of Contents for 2005IC
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