| Prod Model: |
WA19 |
| Model No.: |
Wa19 |
| Output Signal: |
Analog Type |
| Working Temperature: |
-40~125ºC |
| Compensation Temperature: |
-20~70ºC |
| Typical Output: |
0-100mv |
| Usage: |
Industrial |
| Sealing Material: |
NBR |
| Place Of Origin: |
Heifei, Anhui, China |
| Measuring Medium: |
Media Compatible with 316L Stainless Steel |
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: 0-100mVSpecifications of current excitation(1.5mA, 25ºC): | Parameters | Min. | Typical | Max. |
| Accuracy(%FS) | | | |
Non-
Linearity1 | 40Kpa | | ±0.20 | ±0.30 |
| >40Kpa | | ±0.10 | ±0.20 |
| Hysteresis2 | | ±0.05 | ±0.1 |
| Repeatibility3 | | ±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 Resistance6 | 5MΩ | | |
| Insulation Resistance(50V)7 | 50MΩ | | |
Specifications of voltage excitation(10VDC 25ºC): | Parameters | Min. | Typical | Max. |
| Accuracy(%FS) | | | |
Non-
Linearity1 | 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 Resistance5 | 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.
Founded in 2004, ANHUI WNK ELECTRONIC ENGINEERING Co., Ltd is a hi-tech company specializing in different kinds of technologically-advanced and good quality sensor, transmitter and automation instrument. We devote to developing, manufacturing and selling of automation control system, providing our customers comprehensive fieldbus technical solutions and factory informatization construction.
Our main products include iEOS industrial cloud data base developing plate form; Industrial Internet of Things; WNK-WMS industrial wireless measurement system; Onsite measurement instruments like temperature, pressure, flow, level sensor and transmitter etc, widely applied in Petrochemical, Chemical, Power, Steel and Cement.
WNK is the third company in China developed PROFIBUS transmitters. WNK series PROFIBUS transmitter is the fourth in China certificated by international PROFIBUS organization, and Chinese first that completely having proprietary intellectual property rights. WNK PROFIBUS-PA temperature transmitters filled Chinese blank technology in the field.
With strict, scientific management system, WNK has been certificated to conform to standard GB/T 19001-2008 / ISO 9001: 2008 by China CLASSIFICATION SOCIETY CERTIFICATION COMPANY. WNK commits to developing of new products and technical innovation. With continuously effort in advanced technology of automation control system, WNK has been undertaking some innovation projects of MST (Ministry of Science and Technology), and has been honored as promising enterprise of "Giant of Technology "in Hefei Hi-tech Industry Development Zone.
As Chinese first and unique qualified production enterprise of 0.075% measurement in Anhui, WNK brand was awarded Anhui Famous Brand.
