OEM piezo-resistive differential pressure sensor

Based on piezoresistive silicon technology, UPX30 is manufactured from piezoresistive silicon dies. This sensor has two flush diaphragms facing the pressure media, able to measure differential pressure of viscous liquids, th diaphragm form a chamber, in which oil is filled to isolate the sensing element and transfer pressure. The measured pressure is transmitted to the piezoresistive silicon sensing element through 316L isolated diaphragm and internal medium, thus to realize the precise transformation of electrical signal from pressure. This isolation enables the sensor to measure the pressures of corrosive fluids as well as electro conductive liquids. This sensor is tested by computer automatically, and is compensated by laser trimming for zero and sensitivity. Its profile and assembly size have good interchangeability with some overseas' general products. UPX30 pressure sensor is designed for easy installation with O-rings as sealing method, it is widely used for differential pressure measurement in many industrial process control areas. Features: Features * Computer tested, laser trimming compensation * Good performance, high reliability *Imported pressure silicon dies * Intergrated, high static pressure * Isolated-type structure, suitable for many kinds of medium measurementium Speifications pressure mediumgas liquid compatible to stainless steelpressure ranges0 0.35,0 1,0 2.5,0 4,0 6,0 10,0 16,0 25,0 35(bar) pressure typedifferential(D)overload pressure250%FS(positive end),100%FS(negative end)accuracy0.25%FS (standard), 0.5%FSoutput signal≥70mV (typical)zero offset≤±3mVsystem pressure4MPaexcitation1.5mA(not exceeding 2mA)compensated temperature range0 +70°coperating temperature range-20 +80°cstorage temperature range-40 +100°ctemperature coefficient of zero0.2%FS/10°ctemperature coefficient of span0.3%FS/10°cinput/output resistance2 6kΩinsulation resistance100MΩ @ 50VDCresponse time (10% 90%)≤1mselectrical connection4-wirematerial of pressure membrane316Lmaterial of housing316Lsealingfluoro-rubber sealing ringfilled oilsilicon oil, or olive oil (hygienism)wire4-color silicon rubber shielded flexible wiresvibration20g/ (20 5000Hz)service life>1x108 times