Invacare LiNX - Page 141

ModifyingwheelchaircongurationwithPCtool
3.
Fig.10-64
A
Hardzoneforpuffinput
B
Thresholdslidertoadjustminimumlimitfor
hardpuff
C
Softzoneforpuffinput
D
Thresholdslidertoadjustminimumlimitforsoft
puff
E
Neutralzoneforpuffinput
F
Neutralzoneforsipinput
G
Thresholdslidertoadjustminimumlimitforsoft
sip
H
Softzoneforsipinput
I
Thresholdslidertoadjustminimumlimitfor
hardsip
J
Hardzoneforsipinput
4.Userperformshardpuff,softpuff,hardsipandsoft
sipinnospecicorder.Foreachsipandpuff,a
pressurelevelKisrecordedoncalibrationtool.Based
ontheserecordedlevels,youdeterminebestlevelat
whichtoseteachpressurethreshold.
5.DragcorrespondingThresholdsliders.
•Forsoftpuff,dragthresholdsliderDtoposition
justbelowuser’ssoftpuff.Anysubsequent
pressurebelowthresholdsliderDisinneutral
zoneEandisignored.Pressureabovethreshold
sliderDandbelowthresholdsliderBisinsoft
zoneCanddeterminedasoftpuff.
•Forhardpuff,dragthresholdsliderBtoposition
justbelowuser’shardpuff.Pressurebelow
thresholdsliderBisnotconsideredashardpuff.
PressureabovethresholdsliderBisinhardzone
Aanddeterminedashardpuff.
•Forsoftsip,dragthresholdsliderGtoposition
justaboveuser’ssoftsip.Anysubsequent
pressureabovethresholdsliderGisinneutral
zoneFandisignored.Pressurebelowthreshold
sliderGandthresholdsliderIisinsoftzoneH
anddeterminedassoftsip.
•Forhardsip,dragthresholdsliderItoposition
justaboveuser’shardsip.Pressureabove
thresholdsliderIisnotconsideredashardsip.
PressurebelowthresholdsliderIisinhardzone
Janddeterminedashardsip.
SipandPuffRampTime
TheSipandPuffRampTimedenestheamountoftime
thatapressureinputmustremaininthesoftzonebefore
itisregisteredasasoftsiporpuff.Consequently,italso
provides:
•Timeforausertocrossfromtheneutralzonetothe
hardzoneand
•alterforanynoise(unintentionallypressures)at
thezoneboundaries.
Fig.10-65
TheramptimeCbeginsatthepointwherethepressure
inputD,EorFcrossesintosoftzoneH—eitherfrom
neutralzoneI,whenpressureisincreasing,orfromhard
zoneG,whenpressuredecreases.ApressureinputD
thatreachesthehardzonebeforeramptimeexpires,is
registeredasahardsiporpuff.ApressureinputEwithin
softzoneattheendoframptimeisregisteredasasoftsip
orpuff.PressureinputsFthatfallawayintoneutralzone
beforeramptimeexpiresarenotregisteredasaninput.
Fig.10-66
WhensettingSipandPuffRampTime,consideration
shouldbegiventousers,whocannotproduceahardsip
orpuffwithintheramptime.Iframptimeissettoolow,
ausermaynotbeabletoreachthehardzoneGintime
andasoftsiporpuffisregisteredinsteadoftheintended
hardsiporpuff.Foruserswhoneedmoretimetoreach
hardzone,theramptimeCneedstobeextended,sothe
pressureinputJisregisteredasahardsiporpuff.
1.OpenModules–>IN5xx.
2.AdjustSipandPuffRampTime.
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