CareFusion LTV 1200 Service Manual page 264

L) Return to normal ventilation
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mode . Disconnect AC Adapter
from ventilator.
M) Clear the POWER LOST alarm.
Turn the ventilator off. Wait 15
seconds.
N) Clear the Vent Inop alarm. Test
is complete.
5) Perform a Patient Assist Port response test using cable P/Ns 10779 and 10780.
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.
C) Create a High Pressure alarm by
changing the High Pres. Limit
setting to 5 and measure the plug
resistance.
D) Return the High Pres. Limit
setting to 100 and clear all
alarms.
E) Turn the ventilator off, leaving the
audible alarm sounding and
measure the plug resistance.
F) Press the Silence Reset button
to clear the audible alarm and
measure the plug resistance.
G) Disconnect the Patient Assist
Cable, Normally Closed (P/N
10779) and connect a Patient
Assist Cable, Normally Open
(P/N 10780) to the ventilator
Patient Assist port.
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This measurement can best be obtained using the relative (delta) measurement of a DMM.
p/n 18603-001, Rev. J
®
LTV 1200, 1150, and 1100 Ventilator Service Manual
POWER LOST alarm activates.
Battery Level LED illuminates showing the
charge level.
Ventilator continues to operate from the
internal battery.
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.
Confirming audible chirp must activate
after alarm is silenced.
Resistance ≤ 4.0 ohm
Resistance > 1.0 mega ohms
Resistance > 1.0 mega ohms
Resistance ≤ 4.0 ohm
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