Buchi Interface I-100 User Manual download pdf (Page 26)

6|Operation BÜCHILabortechnikAG

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6.3 Calibratingthepressuresensor

ThepressuresensoriscalibratedatthefactorybyBUCHIpriortodelivery.However,it

canberecalibratedwiththeaidofanexternalreferencepressuregaugeatanytime.

u PresstheMenubuttonandselectPressuresensorcalibration.

Fig.16:Menu>Pressuresensorcalibration

6.3.1 Offsetcalibration

Anoffsethastobespecifiedifthepressureindicatedontheinterfaceunitdiffersfrom

thepressureindicatedbyanexternalreferencepressuregauge.Thedifferencebe

tweenthetwofiguresisreferredtoastheoffset.Theoffsetappliestotheentirepres

surerange.

u Onthecalibrationmenu,selecttheoptionCalibrationpressureoffset.

Fig.17:Menu>Pressuresensorcalibration>Calibrationpressureoffset

u Usingthearrowbuttons,settheoffsetandpressOKtoconfirm.

Themeasuredreadingswillthenautomaticallybeadjustedbythespecifiedoffset.

u Makesurethatthereferencepressureindicatedontheinterfaceunitmatchesthe

figureshownontheexternalreferencepressuregauge.

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Buchi Interface I-100 User Manual Page 26