Differential Pressure Sensor
Description of UPX30 differential pressure sensor
Based on piezoresistive silicon technology, UPX30 differential pressure sensor is manufactured from piezoresistive silicon dies. This differential pressure sensor has two flush diaphragms facing the pressure medium, it is able to measure differential pressure of gas or liquids. The diaphragm form a chamber, in which oil is filled to isolate the sensing element and transfer pressure. The measured differential 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.
UPX30 differential pressure sensor is tested by computer automatically, and is compensated by compensation board for zero and sensitivity. Its profile and assembly size have good interchangeability with some overseas' general products.
UPX30 differential 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 of UPX30 differential pressure sensor
◇Good performance, high reliability
◇Imported pressure silicon dies
◇Integrated, high static pressure 200bar
◇Isolated-type structure, suitable for many kinds of medium measurement
Specifications of UPX30 differential pressure sensor
| pressure medium | gas or viscous fluid or fluid with grains compatible to stainless steel |
| pressure ranges | 0~0.2,0~0.35,0~0.7,0~1,0~2.5,0~4,0~6,0~10,0~16,0~25,0~35(bar) |
| pressure type | differential |
| overload pressure | 250%FS(positive end),100%FS(negative end) |
| system pressure | 1000%FS or 10MPa (select the lower) |
| output signal | ≥70mV(typical) |
| accuracy | 0.25%FS(standard), 0.5%FS |
| zero offset | ≤±3mV |
| system pressure effect | ≤0.5mV/MPa |
| excitation | 1.5mA or 5V DC (1.5mA standard) |
| compensated temperature range | -10~+70℃(0~60℃ for range 0.2bar,0.35bar) |
| operating temperature range | -40~+125℃ |
| storage temperature range | -40~+125℃ |
| temperature coefficient of zero | 0.2%FS/10℃ |
| temperature coefficient of span | 0.2%FS/10℃ |
| input/output resistance | 2~6kΩ |
| insulation resistance | 100MΩ@50VDC |
| response time(10%~90%) | ≤1ms |
| electrical connection | 4 color silicon rubber shielded flexible wires |
| housing and diaphragm material | 316L stainless steel |
| filled oil | silicon oil |
| service life | >1×10^8 times |