SLE SLE2000 HFO, Service Manual, Page: 69 / 84

SLE2000 HFO Service Manual
Doc No. SM/0001: Issue 7.0
Page 69 of 84
6.2.5.7 HFO Alarm
Switch the HFO mode to EXP. Fit a patient circuit and test lung to the ventilator.
Adjust oscillator pressure to a peak to peak value of: ............. 6cmH
2
O
±
0 cmH
2
O
Adjust oscillator frequency to: ..............................................................3Hz
±
0 Hz
Adjust P5 fully clockwise.
Adjust P6 so that the cycle fail alarm is just activated.
Increase oscillator pressure to a peak to peak value of: ........... 8cmH
2
O
±
0 cmH
2
O
Cycle fail alarm should be de-activated.
6.2.6 A
LARM MODULE AND OXYGEN CONDITIONING CIRCUIT
(A0738/02)
6.2.6.1 Oxygen Calibration
a) With blender set to 100% Oxygen connect Oxygen supply only to ventilator. Adjust 100% Oxygen
preset on back panel of ventilator so that displayed FIO
2
is 100%.
b) Set blender to 21%. Connect air supply only to ventilator. If necessary, adjust RV2 so that displayed
FIO
2
is 21%.
Repeat steps a) and b) until both displayed values are correct.
6.2.6.2 Alarm sounder volume
Set up an alarm condition on the ventilator.
Adjust RV1 to an acceptable alarm volume, bearing in mind that the alarm will sound slightly weaker when
the cover is fitted.
6.3 P
NEUMATIC
M
ODULE
Connect ventilator to air and oxygen supplies. With a standard patient circuit fitted and with the electronic
module switched to CPAP mode. Set HFO mode OFF and blender to 21%.
a) Monitor the fresh gas pressure regulator output using the test point provided and adjust output of
regulator (REG. 3) to 10psi ± 0.5psi.