LTV 1200 Operator's Manual - CareFusion Emergency Preparedness

Symptoms Possible Causes What to Do
continued…
Monitored volume is
low.
Delivered volume is
low.
Delivered volume is
half the set volume.
Delivered pressure is
low, PEEP is low,
ventilator is
autocycling.
Delivered pressure is
low.
Monitored pressure is
low.
Exhalation drive line
leaking or loose.
Exhalation valve
leaking during
inspiration.
Sense lines are
reversed.
Leak Compensation is
not on.
Check the exhalation drive line at both the
ventilator and exhalation valve ends. Verify the
line is securely seated and not leaking.
Verify the exhalation valve is not leaking during
inspiration. If it is leaking, open the exhalation
valve and remove the diaphragm. Reseat the
diaphragm. See page 13-10 for a diagram of
correct exhalation valve assembly.
If necessary, replace the exhalation diaphragm,
or exhalation valve with a new one.
The sense lines are not designed to be removed
from either the wye or the luer fittings. If the
sense lines have been removed and replaced
incorrectly, they may not seal correctly when
replaced. Replace the patient wye and sense
lines with a known good assembly.
Verify that the Leak Compensation extended
features option is set to On (default setting is on).
See page 10-12 for instructions.
Failed autozero. Perform an autozero under XDCR ZERO. See
page 10-28 for more information.
Failed calibration or
internal problem with
the ventilator.
VHome setting does
not match flow valve.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Circuit leak. Run a leak test and reseat or replace the leaking
parts or connections. See page 11-8 for
instructions.
Page 15-8 LTV ® 1200 Ventilator Operator’s Manual
p/n 18247-001, Rev. G