| Model: | WPAS02 |
| Detection principle: | MEMS piezoresistive pressure sensing |
| Characteristics: | SOP6 package, gauge pressure measurement, low cost, fast response, high reliability and customizable pressure ranges and output methods. |
| Standard encapsulation: | SOP6 |
| Output signal: | Millivolt bridge output |
| Measurement range: | 0～10kPa, 0～20kPa, 0～40kPa, 0～100kPa, 0～200kPa |
| Response time: | ≤1ms, Up to 90%FS |
| Pressure Range: | -100kPa～200kPa |
| Pressure Reference: | Gauge Pressure |
| Working Temperature: | -30℃～100℃ |
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Description
WPAS02 is a plastic package pressure sensor manufactured using a high-precision MEMS pressure-sensitive chip and mature production processes. Its standard pin and pressure-port structure supports convenient integration into OEM pressure measurement modules.
The sensor is intended for gauge, vacuum and negative pressure measurement of dry and non-corrosive gases. Different measuring ranges and output methods can be customized according to customer requirements.
Application
- Process control systems
- Pressure calibration instruments
- Blood pressure monitors
- Ventilators
- Oxygen concentrators
- Patient monitors
- Environmental monitoring
- Consumer products
- Massage chairs
- Massagers
- Air mattresses
- Tire pressure gauges
- MAP systems
- Power steering systems
- Brake assist systems
- Vacuum packaging machines
- Vacuum blenders
- Vacuum breakers
- Vacuum food storage containers
- Vacuum pumps
Features
- SOP6 plastic package
- High-precision MEMS pressure-sensitive chip
- Standard pressure-port structure
- Suitable for module assembly
- Gauge pressure measurement
- Vacuum and negative pressure measurement
- Low-cost OEM solution
- Fast response
- High reliability
- High vibration resistance
- High impact resistance
- Customizable pressure ranges
- Customizable output methods
Specifications
| Detection Range | -100kPa～0kPa…10kPa…200kPa |
| Pressure Type | Gauge Pressure |
| Excitation | (5±0.005)V |
| Impedance | 4kΩ～6kΩ |
| Electronic Connection | PINS; copper plated with silver |
| Working Temperature | -30℃～100℃ |
| Storage Temperature | -40℃～125℃ |
| Response Time | ≤1ms, Up to 90%FS |
| Detection Medium | Dry and non corrosive gas |
| Mechanical Vibration | 20g（20～5000Hz） |
| Impact | 100g（10ms） |
| Lifespan | 10×106 pressure cycles |
| Overload Pressure | 200%FS |
| Burst Pressure | 300%FS |
| Non-linearity | ≤10kPa: Min -0.5%FS, Typical ±0.3%FS, Max 0.5%FS; ＞10kPa: Min -0.3%FS, Typical ±0.15%FS, Max 0.3%FS |
| Hysteresis | Min: -0.3%FS; Typical: ±0.15%FS; Max: 0.3%FS |
| Repeatability | Min: -0.3%FS; Typical: ±0.15%FS; Max: 0.3%FS |
| Zero Point Output | -40mV～+40mV |
| Full-range Output Coefficient | ≤10kPa: 35～65mV, Typical 50mV; 20kPa: 35～50mV, Typical 40mV; 40kPa: 60～90mV, Typical 75mV; ≥100kPa: 70～110mV, Typical 90mV |
| Zero Temperature Coefficient | Min: -0.05%FS/℃; Typical: ±0.02%FS/℃; Max: 0.05%FS/℃ |
| Full-range Temperature Coefficient | -0.06%FS/℃ |
| Heat Hysteresis | Min: -0.075%FS; Typical: ±0.05%FS; Max: 0.075%FS |
| Long-term Stability | Min: -0.3%FS/Year; Typical: ±0.2%FS/Year; Max: 0.3%FS/Year |
| Package | SOP6 |
* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.
Technical Support:
Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.
The sensors don't have sleeping mode. It can be set in program if needed.
All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.
The sensor has been fully tested (not calibrated) before leaving the factory, but the module will be calibrated before leaving the factory.
However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.
15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.
Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.
Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.
Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to sales@winsensor.com
Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.
