p/n 18603-001, Rev. C LTV
®
1200/1150 Ventilator Service Manual Page 7-1
Chapter 7 -
T
ROUBLESHOOTING
This chapter describes troubleshooting for the LTV
®
1200/1150 ventilator. Some problems
can result from improper operation and can easily be corrected without any modification to
the ventilator. Other problems may require that the ventilator be recalibrated or have parts
replaced.
WARNING
Ventilator Service and Repair - Only service technicians who have been trained and
certified by Pulmonetic Systems to service the LTV
®
1200/1150 ventilator are authorized to
perform repairs or maintenance on LTV
®
1200/1150. Do not attempt to repair or replace any
part of the ventilator unless you are trained and certified by Pulmonetic Systems. Personal
injury could result.
NOTE
Event log entries are only one of many diagnostic tools used to troubleshoot the ventilator.
Additional information is often required to accurately identify the root cause of a problem.
This chapter is organized into eight sections:
• Displays and Buttons
Includes problems with control and window displays and with
setting controls.
• Ventilator Performance
Includes problems with delivered or monitored pressure, volume
or PEEP, accuracy, sensitivity and triggering.
• Advanced Vte
Diagnostic Procedures
Includes advanced diagnostic procedures for troubleshooting
Vte problems involving transducer accuracy/drift, the pneumatic
system and flow valve accuracy.
• Advanced FiO
2
Diagnostic Procedures
Includes advanced diagnostic procedures for troubleshooting
O
2
% concentration (FiO
2
) problems involving calibration of the
oxygen pressure transducer, flow valve and O
2
blender.
• Power and Battery
Operation
Includes problems with turning the ventilator on, operating from
external power sources, battery operation or duration, and Vent
Inops.
• Alarms
Includes problems with recurring alarms.
• Checkout Test Failures
Includes problems detected while performing the VENT CHECK
and VENT MTNCE tests.
• Test Lung Operation
Includes problems encountered when operating the ventilator
with a test lung.
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