p/n 18603-001, Rev. C LTV
®
1200/1150 Ventilator Service Manual Page 9-5
I) Disconnect the high pressure
sense line from the ventilator.
DISC/SENSE alarm activates on the next
breath.
J) Reconnect the pressure sense
lines and clear the alarm.
K) Change control settings as
follows:
Mode: Pressure, Assist/Control
Breath Rate: 10
Pressure Control: 45
Insp. Time: 1.5 sec
PEEP: 5
Let the ventilator deliver several
breaths to stabilize.
Selected Monitors should read as follows:
PIP: 46 to 54 cmH
2
O
No alarms activate.
L) Return to normal ventilation
mode. Disconnect AC Adapter
from ventilator.
POWER LOST alarm activates.
Battery Level LED illuminates showing the
charge level.
Ventilator continues to operate from the
internal battery.
M) Clear the POWER LOST alarm.
Turn the ventilator off. Wait 15
seconds.
After the ventilator is turned off, the Vent
Inop alarm sounds continuously for a
minimum duration of 15 seconds.
Vent Inop LED illuminates continuously for
a minimum duration of 15 seconds.
N) Clear the Vent Inop alarm. Test
is complete.
Confirming audible chirp must activate
after alarm is silenced.
6) Perform a Patient Assist Port response test.
A) Connect a Patient Assist Cable,
Normally Closed (P/N 10779) to
the ventilator Patient Assist port,
reconnect the AC adapter, power
the ventilator up and clear all
alarms.
B) Use a Digital Multi-Meter to
measure the resistance at the
1/4” plug of the Patient Assist
Cable.
Resistance ≤2.3 ohm
67
C) Create a High Pressure alarm by
changing the High Pres. Limit
setting to 5 and measure the plug
resistance.
Resistance >1.0 mega ohms
67
This measurement can best be obtained using the relative (delta) measurement of a DMM.
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