Section 5 - Operation
Breathing Pressure Monitoring
PEEP > 25
(Caution)
Any time that the monitor measures a PEEP of 26 cmH
2
O or greater,
the Caution message PEEP > 25 appears on the central alarm display
and an intermittent audible alarm sounds.
Alarm annunciation ceases when the measured PEEP drops below
26 cmH
2
O. Also, an APNEA or CONTINUING PRESSURE alarm condition
will clear this alarm condition.
THRESHOLD LO
(Advisory)
The Advisory message THRESHOLD LO appears on the central alarm
display any time the sensed peak pressure exceeds the threshold
pressure alarm limit by more than 6 cmH
2
O at threshold pressure alarm
limit settings of 5–20 cmH
2
O, or by more than 8 cmH
2
O at threshold
pressure alarm limit settings of 21–29 cmH
2
O. Setting the threshold
pressure alarm limit at 30 cmH
2
O disables the THRESHOLD LO
advisory.
PEEP > 4
(Advisory)
Any time the monitor measures a PEEP of 5 cmH
2
O or greater, the
Advisory message PEEP > 4 appears on the central alarm display.
When the measured PEEP drops below 5 cmH
2
O, the Advisory message
is cleared from the display.
APNEA-P OFF
(Advisory)
Any time that the apnea pressure alarm (threshold pressure alarm limit)
has been disabled, the Advisory message APNEA-P OFF appears on the
central alarm display. This Advisory is also generated automatically
after power-up if the ventilator power switch is in the OFF position.
Problem Resolution
PROBLEM POSSIBLE CAUSE REMEDY
No pressure
readout in display
area during
ventilation
Pilot line not
connected
Make sure pilot line
is properly connected.
Pilot line blocked or
kinked
Make sure that
lumen of pilot line is
free of obstructions.
Erratic readings Condensation
accumulation in
pilot line
Drain and reconnect
pilot line.
5-12-11
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