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FPSS025U bảng dữ liệu(PDF) 7 Page - All Sensors Corporation |
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7 / 11 page All Sensors DS-0329 Rev B Performance Characteristics4 (Cont’d) Page 7 Specification Notes (Cont’d) note 3: total accuracy iS tHe combineD error from offSet anD Span calibration, linearity, preSSure HyStereSiS anD temperature effectS. note 4: tHe SenSor iS calibrateD witH a common moDe preSSure of 1 bar abSolute. Due to tHe maSS flow baSeD meaSuring principle, variationS in abS- olute common moDe preSSure neeD to be compenSateD accorDing to tHe following formula : note 5: tHe max. common moDe preSSure iS 30 pSi note 6: figure baSeD on accelerateD lifetime teSt correSponDing to 1 year of life. note 7: tHe Digital output Signal iS a SigneD, two’S complement integer. negative preSSureS will reSult in a negative output. note 8: pleaSe contact all SenSorS corporation for low power optionS. note 9: non-linearity referS to a terminal baSeD fSl (fitting StraigHt line) going tHrougH tHe actual zero preSSure reaDing. note 10: for example witH a fpSS500... SenSor meaSuring co 2 gaS, at full-Scale output tHe actual preSSure will be 2.00 inH2o x 0.56 = 1.12 inH2o. note 11: for correct operation of fpS 3v DeviceS, tHe Device Driving tHe Spi buS muSt Have a minimum Drive capability of ± 2 mA. gas correction factor ΔPeff = ΔPsensor x ΔPeff = True differential pressure ΔPsensor = Differential pressure as indicated by output voltage Analog Output (Bidirectional Devices) Digital Output Characteristics Min Typ Max Units Zero Pressure Offset 1.49 1.50 1.51 V Full Scale Span 2.37 2.40 2.43 V Output @ Max. Specified Pressure - 2.70 - V Output @ Min. Specified Pressure - 0.30 - V Thermal Effects Offset @ 5 to 55 °C - - ±10 mV Offset @ 0 to 70 °C - - ±12 mV Thermal Effects Span @ 5 to 55 °C - ±1 ±1.75 %FSS Span @ 0 to 70 °C - ±2 ±2.75 %FSS Characteristics Min Typ Max Units Scale Factor (Digital Output)7 0.4 inH2O / ±0.4 inH2O - 75 - counts/0.001 inH2O 1.0 inH2O / ±1.0 inH2O - 30 - counts/0.001 inH2O 2.0 inH2O / ±2.0 inH2O - 15 - counts/0.001 inH2O Zero Pressure Offset Tolerance -0.1 - +0.1 %FSS Full Scale Span Tolerance -0.75 - +0.75 %FSS Thermal Effects Offset @ 5 to 55 °C - - ±30 counts Offset @ 0 to 70 °C - - ±60 counts Thermal Effects Span @ 5 to 55 °C - ±1 ±1.75 %FSS Span @ 0 to 70 °C - ±2 ±2.75 %FSS Pabs ΔPeff = ΔPsensor x 14.5 psia ΔPeff = True differential pressure ΔPsensor = Differential pressure as indicated by output voltage ΔPabs = Current absolute common mode pressure |
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Mô tả tương tự - FPSS025U |
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