LTV 1200 - Page 262

Page 9-6 LTV
®
1200/1150 Ventilator Service Manual p/n 18603-001, Rev. C
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.
Resistance >1.0 mega ohms
F) Press the Silence Reset button
to clear the audible alarm and
measure the plug resistance.
Resistance ≤2.3 ohm
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.
H) Turn the ventilator back on in
breathing mode, clear all alarms
and measure the plug resistance.
Resistance >1.0 mega ohms
I) Create a High Pressure alarm by
changing the High Pres. Limit
setting to 5 and measure the plug
resistance.
Resistance ≤2.3 ohm
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J) Return the High Pres. Limit
setting to 100 and clear all
alarms.
K) Turn the ventilator off, leaving the
audible alarm sounding and
measure the plug resistance.
Resistance ≤2.3 ohm
L) Press the Silence Reset button
to clear the audible alarm and
measure the plug resistance.
Resistance >1.0 mega ohms.
7) Check date, time and usage by operating the ventilator using the test lung for 1 hour.
A) Set the date to the current date. Note the current date and date format.
B) Set the time to 23:15.
C) Note the current usage meter.
D) Run the ventilator connected to a
test lung for 1 hour.
Verify that no alarms occur.
E) Power the vent off and on. Check
the date.
Date has incremented correctly.
F) Check the time. Time has incremented correctly.
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This measurement can best be obtained using the relative (delta) measurement of a DMM.