Pressure Sensitivity - GE Aespire 7100 Technical Reference Manual

4.9.7
Pressure
Sensitivity
4 Tests and Calibration
1h e Pre揭ure Se
nsltlvlty
calibration calculates correction factors for common mode
pre臼ure 臼nsitivity of 由edi仔erential pressure transducers.
1h
e pr，臼sure transducers
must be calibrated whenever the VMB or the Control Boa时 is replaced.
1h
is pressure sensitivity calibration is not an auωmated calibration. Follow 由eprompts
on the screen to complete the calibration.
1h
e rou甘ne calculates the pr l 臼 sure sensitivity
atfourdi何'erent
pressures (1 0 , 20 , 40 , and 60 cm H
2
0) and extrapolates
the 币仙
pre臼ure point(70 cm H
2
0).lt uses these five pr l 臼 sure points alongwith the zero offsets
to find the pressure sensitivity.
• If 甘le calibration passed , the five pressure sensitivity points are stored in the
EEPROM.
• If 由e calculations for the pressure sensitivity are not within the correct
tolerance , the calibration fails.
旦旦旦旦业E且
Direct阳、S 101 Pr essure S町随脂Iu C副阳a翩翩
1. Perfor. the
.Z嗣同酬， and 幽WëIIJ
Sensor
S" c司阳It阳.
2. PerfollR the .抽响日臼n回『匈田r'
3. 口cclude the 叩eninglt 恼e bag...m
4. Connect short pat iei1t tubing 110. mp
11酬 portto e叩 IlM po且
5. S øI B
II!I''t',
nt a咽tchtoB咽 positlon.
6. S剧创.Nelct pr酷剧re SensKMlv 阳lU" 10r neKl叫ibr画。n 帽盹
1. 峭ust 恤eAPL 田dlr础 g嗣甜酬 to stable 阴阳 uresdl且
刻1， 40 副市d 60cII H20.
自.A1ter 剧由 setti咽 walSsec田晦 and S蜘ct， .Save VM.re"
to
S8\吊 thevalue.
圆圆圆回-回回国回回圃'回回归圃-
GotoCallbr硝onsM田lU
Callbratlon procedure 1. Perform the "Zero Flow and
Ai附ay
Sensors" calibration.
M1110140 08/07
2. Perform 由e "Airway Sensor Span".
3. Occlude the opening at the bag arm
4. Connect short patient tubing from the inspiratory flow patient connection
to 由e
expiratory flow patient connection.
5. Setthe
BagjVentswitchωthe
Bag position.
6. Select "Next Pressure Sensitivity Menu' for the next calibration menu.
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