CareFusion LTV 1200 Service Manual page 93

O % is high.
2
Page 7-16
O inlet pressure too high
2
when Low O Source
2
selected.
O inlet flow too high when
2
Low O Source selected.
2
Low O Source incorrectly
2
selected.
Flow valve output is low.
Failed calibration.
Internal flexible tubing
occluded or pinched.
Internal flexible tubing has
pinhole leaks or leaking at
connections.
Defective or leaking
solenoid manifold.
Defective solenoid.
Incorrect O blender
2
solenoid output flow.
®
LTV 1200, 1150, and 1100 Ventilator Service Manual
Verify the low pressure O
correctly calculated and set using the
Input O Flow Chart.
2
CareFusion recommends the use of an O
monitor to verify delivered O
entrained O flow so the monitored value
2
shows the desired FIO . (See the LTV
2
1200 Ventilator Operator's Manual for
information on using the Low O
and O % features.)
2
Verify that the Low O Source is on when
2
using a low flow, low pressure source and
off when using a high pressure source.
®
(See the LTV 1200 Ventilator Operator's
Manual for information on using the Low
O Source and O % features.)
2 2
Perform the Advanced FiO
Procedures, see page 7-27.
Recalibrate the vent. See Chapter 6 -
Maintenance & Calibration for instructions.
If the problem reoccurs after careful
recalibration, a transducer may be drifting
excessively. Replace the analog board.
See Analog Board Assembly in Chapter 8
for instructions.
Open the vent and verify that none of the
flexible tubes connected to the solenoid
manifold, analog board, oxygen blender or
flow valve are pinched or leaking. See
Solenoid Manifold Assembly or Analog
Board Assembly in Chapter 8 for routing.
Replace the solenoid manifold. See
Solenoid Manifold Assembly in Chapter 8
for instructions.
Perform the Advanced FiO
Procedures, see page 7-27.
If testing fails, replace the O
Chapter 8 - O2 Blender Assembly / O2
Block.
inlet has been
2
2
%. Adjust the
2
®
Source
2
Diagnostic
2
Diagnostic
2
blender, See
2
p/n 18603-001, Rev. J