Pulmonetic Systems LTV 950 - Page 212

Page 15-12 LTV
®
Series ventilator Operator’s Manual
p/n 10664, Rev. Y
Symptoms Possible Causes What to Do
High side sense line or
elbow at patient wye
loose or leaking.
Check high and low pressure sense lines to be
sure they are correctly attached and securely
seated at both the ventilator and wye ends.
Check the luer fitting connections for leaks.
Check the elbow connectors at the wye to be
sure they have not loosened or been broken
loose.
Verify lines are not occluded or pinched.
Continued…
PEEP not working.
PEEP low.
PEEP sags during
exhalation.
Failed calibration or
internal problem with
the ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Patient effort
inadequate.
Some very small patients and patients with very
weak inspiratory efforts may not be able to
generate a 1 Lpm effort.
Failed autozero. Perform an autozero under XDCR ZERO. See
page 10-23 for more information.
Leak Compensation is
not on.
Verify that the Leak Compensation extended
features option is set to On (default setting is on).
See page 10-12 for instructions.
Ventilator won't
trigger at sensitivity
setting of 1 Lpm.
Failed calibration or
internal problem with
the ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
High or low sense lines
are occluded.
High or low sense ports
in the wye are
occluded.
Verify lines are not occluded or pinched and/or
clear the lines with a low flow (less than 10 lpm)
gas source.
Condensation in
sense lines.
Defective purge
solenoids.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Ventilator is on, gas is
not delivered and
turbine is running.
Failed calibration or
internal problem with
the ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Ventilator makes a
high pitched noise
when in Standby.
Battery charge circuit
running.
When the battery charge circuit is running in bulk
charge (the Charge Status LED is amber) the
ventilator may emit a high pitched sound that
some people can hear. This is normal.