SLE SLE2000 HFO, Service Manual, Page: 67 / 84

SLE2000 HFO Service Manual
Doc No. SM/0001: Issue 7.0
Page 67 of 84
Turn motor speed control fully anti-clockwise
Verify that frequency at TP1 is: .......... 600Hz±60Hz(1.67ms±0.167ms)Factory set.
Connect a patient circuit and test lung to the ventilator.
Adjust HFO peak to peak pressure to: ........................................20cmH
2
O approx.
Monitor buffered transducer output using a calibrated oscilloscope.
Verify that minimum HFO rate is:................................................3Hz ,333ms±3ms
and that maximum HFO rate is: ................................................ 20Hz ,50ms±0.5ms
6.2.5 HFO M
AIN
B
OARD
(A0736/01)
Connect Pressure source to PTR1
6.2.5.1 Scaling of pressure LCD display
Set up a pressure of:.......................................................... 60 cmH
2
O ±0.5cmH
2
O.
Adjust P14 to give:........................................................................... 4.63V±0.01V
Set up a pressure of:.......................................................... -60 cmH
2
O ±0.5cmH
2
O
Confirm TP2 is:................................................................................ 0.28V±0.01V
Remove pressure source from PTR1 port.
Set low alarm to: ..................................................................................... 0 cmH
2
O
Confirm that the displayed low alarm level coincides with the displayed pressure level.
Reconnect pressure source to PTR1 port.
Set high, FTC and low alarm controls fully clockwise. Switch ventilator to CMV mode.
Adjust P11 so that displayed high alarm level:........................................ 62 cmH
2
O
Adjust P13 so that displayed FTC level:................................................. 50 cmH
2
O
Adjust P12 so that displayed low alarm level: ........................................ 40 cmH
2
O
Confirm that the fresh gas dump solenoid is de-activated at a position above the high
alarm setting of between:................................................................... 0cm and 2cm
6.2.5.2 Bargraph Calibration
Set high pressure limit to : ..................................................................... 60cmH
2
O
Set FTC pressure limit to : ..................................................................... 50cmH
2
O