Small & Medium Pressure Sensor for Non-Corrosive Gas and Liquid

• Customization: Available
• Type: Piezoresistive Pressure Sensor
• Component: OEM Technology
• For: Diffused Silicon Pressure Transmitter
• Output Signal Type: Analog Type
• Production Process: Integration
• Material: Plastic
• Wiring Type: Four-Wire
• Measuring Medium: Liquid and Gas
• IP Rating: IP65
• Certification: ISO
• Customized: Customized
• Model No.: Wa18
• Pressure Range: 0-40kpa…2.5MPa
• Typical Output: 0-100V
• Media Range: Non-Corrosive Gas and Liquid
• Pressure Reference: Gauge
• Compensation Temperature: 0~70ºC
• Place of Origin: Heifei, Anhui, China
• Warranty: 1year
• Transport Package: Paper Carton and as Customer′s Requirement
• Specification: ceramic housing
• Trademark: WNK
• Origin: Hefei, Anhui Province, China
• HS Code: 902690000

Product Description

WA18 Diffused Silicon Oilless Pressure Sensor      

WA18 series is MEMS technology based piezoresistive silicon sensor. It uses ceramic housing without isolation diaphram and silicon oil. WA18 is different with tranditonal diffused silicon diaphram-free sensors: pressure media touches directly with the back of pressure chip (the side without circuit), ensuring durability and long-term stability of the sensor. It is a kind of low cost and high performance OEM pressure measuring sensor designed for clear and non-corrosive gas and liquid.
 
Every sensor was strictly temperature compensated for both zero and span before shipment to ensure measurement accuracy in complex environment.



Features - WA18 Diffused Silicon Oilless Pressure Sensor    

1. For measuring non-corrosive gas and liquid
2. Simple structure in low cost
3. Suitable for small and medium pressure (0-40Kpa2.5Mpa)
4. Compensation temperature 0-70ºC
5. Typical output: 0-100mV
6. Ventilating Gauge pressure (G)
 



Technical Parameters under Constant Voltage (excitation voltage 10VDC, preheat 10mins under 25ºC)

Parameters		Min.	Typical	Max.
Accuracy(%FS)
Non- Linearity^1	40Kpa		±0.20	±0.30
	>40Kpa		±0.10	±0.20
Hysteresis			±0.05	±0.1
Repeatability			±0.05	±0.1
Output(mV)
Zero		-5	0	5
Span(FS)		95	100	105
Temp. characters
Operation Temp.(ºC)^3		-40		125
Compensation Temp(ºC)		0		70
Zero Temp.error(%FS)^4		-0.75	±0.5	0.75
Span Temp. error(%FS)^4		-0.75	±0.5	0.75
Thermal hysteresis(%FS)			0.1
Long term Stability
Zero (±%FS annual)			0.1
Span (±%FS annual)			0.1
Supply Voltage			10VDC	14VDC
Input Resistance		6kΩ	8kΩ	10kΩ
Output Resistance		2.5kΩ	3kΩ	3.7kΩ
Load Resistance^5		5MΩ
Insulation Resistance(50V)^6		50MΩ
Pressure Range		0-40Kpa2.5Mpa
Pressure Overload		2X Rated pressure or 3.5Mpa (take the smaller)
Pressure Breakdown		1.5X Rated pressure or 4Mpa (take the smaller)
Pressure Media		Clear gas and clear non-corrosive liquid compatible with ceramic, silicon, glass, Silica( measuring range smaller than1Mpa)/ epoxy resin adhesive (measuring range higher than 1Mpa)

Note:

1. Best fit straight line.

2. Measured at vacuum for absolute (A), ambient for gage (G).

3. Maximum temperature range for product with standard cable is -20°C to +105°C.

4. Over the compensated temperature range with respect to 25°C.

5. Load resistance to reduce measurement errors due to output loading.

6. Between case and sensing element.
 

Dimensions - WA18 Diffused Silicon Oilless Pressure Sensor    



Why choose us?
1. We are professional manufacturer with own R&D and sales team, with more than 12 years producing experience in transmitters & sensors.
2. We have strict quality control system, each set product we do temperature compensation and aging test before shipment, so the quality is guaranteed.

Delivery
7~15 days after order confirmed