Constant Current and Constant Voltage Power 316L Liquid Oil Gas Pressure Sensor

• Type: Piezoresistive Pressure Sensor
• Component: OEM Technology
• For: Diffused Silicon Pressure Transmitter
• Output Signal Type: Analog Type
• Production Process: Integration
• Material: Stainless Steel
• Model NO.: WA19
• 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
 

   A11 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



Why choose WNK?

1. Founded in 2004 , 12 years producing experience of sensors, transmitters
2. Chinese first having completely proprietary intellectual property rights of PROFIBUS temperature transmitter
3. Chinese industry leader in cement applying field
4. Aboundant experience of OEM & ODM with customers around the country including many trading companies. 5. Having not done foreign trade before, but users of our products have been all over the world
6. WNK profound accuracy of 0.075% is unique in our local, and it has been local measurement standard.
7. WNK has been continously awarded National High-tech Enterprice, Hefei Famous Brand, Chinese Top Ten Famous Brand of Transmitters, Chinese AAA Enterprice of Quality Guarantee and Good Faith, Chinese Industrial Fieldbus Leading Enterprice and etc.

FAQ

 Q: Are you trading company or manufacturer ?

A: We are a manufacturer since the year 2004, committed to producing high accuracy, long-term stability, cost-efficient pressure/level/temperature measuring instruments.

Q: What's your quality control system?

A: Our factory is cerrified under ISO 9001-2015. All products are completed with temperature compensation and 48 hours aging test before shipment.

Q: What is the warranty of your products?

A: 12 month from shipment date, for non-man-made damages.

Q: Shipping and Delivery

A: Small orders are delivered with DHL, Fedex, TNT, UPS , with delivery time in 4 - 5 business days.

Large orders are recommended to ship by sea

If you have another question, pls feel free to contact us as below