Stainless Steel Piezoresistive Pressure Sensor, Analog Output for Pressure Transmitter

• Customization: Available
• Type: Piezoresistive Pressure Sensor
• Component: OEM Technology
• Model NO.: WA19
• For: Diffused Silicon Pressure Transmitter
• Output Signal Type: Analog Type
• Production Process: Integration
• Material: Stainless Steel
• Thread Type: NPT
• Wiring Type: Four-Wire
• Measuring Medium: Media Compatible with 316L Stainless Steel
• IP Rating: IP65
• Certification: ISO
• Customized: Customized
• Model No.: Wa19
• Output Signal: Analog Type
• Working Temperature: -40~125ºC
• Pressure Range: 0-40kpa^7MPa
• Compensation Temperature: -20~70ºC
• Typical Output: 0-100mv
• Usage: Industrial
• Sealing Material: NBR
• Place of Origin: Heifei, Anhui, China
• Transport Package: Paper Carton and as Customer′s Requirement
• Trademark: WNK
• Origin: Hefei, Anhui Province, China

Product Description

WA19 Piezoresistive Pressure Sensor
 

   WA19 series are based on piezoresistive silicon pressure sensors packaged in a 316L stainless steel housing. The sensing package utilizes silicon oil to transfer pressure from the 316L  diaphragm to the sensing element.  

   It is designed for o-ring mounting for the applications where compatibility with corrosive media is required. Each sensor was strictly temperature compensated for both zero and span. 

  There are two options of excitation power -- constant current and voltage.


Features - Pressure Sensor:

1. Low cost OEM
2. High stability and accuracy
3. Suited for pressure of 0-40Kpa...7Mpa
4. Wide compenstation temperature range
5. Compatible with 316L, suitable for corrosive media
6. Standard mounting size
7. Typical output: 0-100mV

Specifications of current excitation(1.5mA, 25ºC):
 

Parameters			Min.	Typical	Max.
Accuracy(%FS)
Non- Linearity^1		40Kpa		±0.20	±0.30
		>40Kpa		±0.10	±0.20
Hysteresis^2				±0.05	±0.1
Repeatibility^3				±0.05	±0.1
Output(mV)
Zero			-2	±1	2
Span(FS)			70
Temp. characters
Operation Temp.(ºC)			-40		125
Compensation Temp(ºC)	40Kpa		0		50
	100Kpa		0		70
	>100Kpa		-10		70
Zero Temp.error(%FS)^4				±0.75	±1.0
Span Temp. error(%FS)^4				±0.75	±1.0
Thermal hysteresis(%FS)^5				0.1
Long term Stability
Zero (±%FS annual)				0.1
Span (±%FS annual)				0.1
Supply Current			0.5mA	1.5mA	2mA
Input Resistance			2kΩ	2.5kΩ	3kΩ
Output Resistance			2.5kΩ	3kΩ	3.7kΩ
Load Resistance^6			5MΩ
Insulation Resistance(50V)^7			50MΩ

 Specifications of voltage excitation(10VDC 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			-2	±1	2
Span(FS)			98	100±1	102
Temp. characters
Operation Temp.(ºC)^3			-40		125
Compensation Temp(ºC)	40Kpa		0		50
	100Kpa		0		70
	>100Kpa		-10		70
Zero Temp.error(%FS)^4				±0.75	±1.0
Span Temp. error(%FS)^4				±0.75	±1.0
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			0-40Kpa7Mpa
Pressure Overload		≤4Mpa	2X
		7Mpa	1.5X
Pressure Media			Liquids and Gases compatible with 316L Stainless Steel

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 - Pressure Sensor:

 Ribbon Cable
 


Connect Pin



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FAQ:
Q: Are you manufacturer or trading company?
A: We are 13-year professional manufacturer of Pressure/ Level/ Temperature transmitters with 4~20mA, Hart, Profibus & FF protocols, pressure sensors with SPI, I2C, 4~20mA, 0.5~4.5V and etc, and electronic switches. We provide high quality products with high competitive factory price.
 
Q: What's your quality control system?
A: As an ISO9001:2015 certificated manufacturer, we have strict quality control system, and each product is done fatigue testing, calibration, temperature compensation before shipment. High quality is guaranteed.
 
Q: Is there MOQ with your product?
A: We have no MOQ limits, 1pc for testing purpose is acceptable.
 
Q: Can we print our logo on the products? Do you provide customized products?
A: Yes, we can print your logo on our products; OEM, ODM&customization are welcomed.
 
Q: What is the warranty of your products? And after-sales service?
A: Our warranty time is 12 months after shipment, and our after-sales dpt will respond with your questions in 24hrs, remote instruction by PC network is always available.
 
Q: What is lead time of your product?
A: We are factory, our lead time is always within 7 working days for products without customization, but lead time for flange products is a little longer.