CareFusion LTV 1200 Service Manual page 280

6) Perform a Real-time Transducer test. Turn the ventilator off. Turn the ventilator on while
holding the Select, Control Lock, and Manual Breath buttons (3-finger mode
the REMOVE PTNT alarm, and then turn to the RT XDCR DATA menu and press
Select. Turn the Set Value knob to display the required data.
Airway Pressure Transducer
A) Open all connections to ambient air
to apply 0 cmH
XDCR port.
B) Apply 50 cmH
flow XDCR port.
Flow Transducer Wide
C) Open all connections to ambient air
to apply 0 cmH
XDCR ports.
D) Apply 15 cmH
high flow XDCR port.
E) Apply 15 cmH
flow XDCR port. Record the FDw
value. Open all connections to
ambient air.
Flow Valve Differential Transducer
F) Exit the RT XDCR DATA menu and rotate the Set Value knob to the VENT
MTNCE menu and press Select.
G) Press Select to enter the Servo
menu, use the Set Value knob to
select ON, and press Select. Set
step position (listed under Tidal
Volume) to 500 and turbine speed
(listed under High Press alarm) to
10. Return to the RT XDCR DATA
menu and view FVd.
H) Set step position to 100 and turbine
speed to 4000. Return to the RT
XDCR DATA menu and view FVd.
O Transducer (LTV
2
I) Open O connections to ambient.
2
View the O
2
XDCR DATA menu.
J) Apply 50 ± 2 PSIG to O
87
Using the 3-finger technique enables a modified mode of VENT MTNCE in which testing may be performed,
but Calibration procedures and changing Configuration settings are not available.
p/n 18603-001, Rev. J
O to high flow
2
O ± 2 cmH O to high
2 2
O to both flow
2
O ± 0.5 cmH O to
2 2
O to high and low
2
®
1200 only)
reading under the RT
inlet port.
2
®
LTV 1200, 1150, and 1100 Ventilator Service Manual
 AP display must read 0  0.5 cmH

AP display must read the applied
pressure  2 cmH
 FDw display must read 0  0.5
cmH O
2

FDw display must read the applied
pressure  0.5 cmH
 FDw display must read 0  0.5
cmH O
2
 FVd display must read 0  0.5 cmH
 FVd display must read ≥ 14 cmH
 display must read 0  0.5 PSIG
O
2

O display must read the applied
2
pressure  2 PSIG
87
). Clear
O.
2
O.
2
O
2
O
2
O
2
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