BP157 Piezoresistive Diffused Silicon Pressure Transmitter
Introduction:
The sensor contains a thin silicon diaphragm that acts as the sensing element. The diaphragm is fabricated using microelectromechanical systems (MEMS) technology.piezoresistive resistors are diffused into the silicon diaphragm, forming a Wheatstone bridge circuit. These resistors change their resistance when the diaphragm deforms under pressure.When pressure is applied to the sensor, the silicon diaphragm deforms. The deformation causes a change in the stress on the piezoresistive elements.The stress induced by the pressure changes the resistance of the piezoresistive elements in the Wheatstone bridge.The stress induced by the pressure changes the resistance of the piezoresistive elements in the Wheatstone bridge.The raw output from the Wheatstone bridge is typically very small and needs amplification. Signal conditioning circuits amplify and convert the signal into a standard output format (e.g., 4-20mA, 0-5VDC, or digital output).
Product Features:
Compact and robust design
Anti-electromagnetic interference.
Full welded sealed
IP65 protection
Multiple output signals
Robust Construction
Ease of Integration
Applications:
Compatible with 316L stainless steel, non-corrosive gases and liquids
Petrochemical and other industrial field
Air compressor, vacuum equipment
Hydraulic and pneumatic control systems
Performance Parameters:
| Measurement Range |
-100KPa~0kPa~10kPa…10MPa |
| Pressure Type |
Gauge Pressure, Absolute Pressure, Sealed Pressure |
| Overload Pressure |
≤ 1.5 times of the rated range |
| Accuracy @ 25℃ |
±0.25% (Typ.) , ±0.5% (Max.) |
| Repeatability& Hysteresis |
0.02%F.S(Typ.) 0.05%F.S(Max.) |
| Long-Term Stability |
±0.1%F.S/Year(Typ.) ±0.2%F.S/Year(Max.) |
| Temperature error -Zero |
±0.02%F.S/℃(≤100KPa) ±0.01%F.S/℃(＞100KPa) |
| Temperature error -Span |
±0.02%F.S/℃(≤100KPa) ±0.01%F.S/℃(＞100KPa) |
| Compensation Temperature |
0-50℃(<35KPa), 0-70℃(standard ) -20~80(customizable) |
| Operating Temperature |
-20℃~80℃ |
| Storage Temperature |
-40℃~120℃ |
| Housing Material |
304 SS |
| Diaphragm Material |
316L SS |
| Insulation Resistance |
100MΩ 100VDC |
| Explosion-proof Rating |
Ex db IIC T6 Gb |
| Protection Rating |
IP65 |
| Sealing material |
Fluoro rubber or full weld seal |
| Weigh |
~0.20kg |
| Output Signal |
Supply Voltage |
Output Type |
| 4～20mA |
12～30VDC |
2/3/4 wire |
| 0～10/20mA |
3 wire
|
| 0/1～5V |
| 0/1～10V |
| 0.5～4.5V |
5VDC |
Ordering tips
1. Determine Pressure Range: Identify the full range of pressures that the transmitter will need to measure. Ensure the transmitter you select can accurately measure within this range to avoid errors and potential damage.
2. Accuracy Levels: Understand the accuracy requirements for your application. Different transmitters offer varying levels of precision, so choose one that meets your specific needs for accurate data.
3. Mounting Options: Identify how the transmitter will be mounted in your application, whether it requires direct mounting, bracket mounting, or integration into a panel.
4. For special requirements such as strong vibration, instantaneous impact force, strong electromagnetic or radio frequency interference, please inform our company and specify them in the order.
5. Mounting Options: Identify how the transmitter will be mounted in your application, whether it requires direct mounting, bracket mounting, or integration into a panel.
FAQ:
Q: Are you manufacturer?
A: Yes, We are professional sensor manufacturer over 29 years! Our technical team has more than 10 engineers.
Q: Can you accept OEM service ?
A: Yes, we accept OEM and ODM.
Q: Can I be your distributor?
A: Yes, we are looking for distributors in oversea market.
Q: What is your lead time?
A: Normally 3-5days. For quantity above100pcs, need extra 5-7 working days.
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