• 0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor
  • 0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor
  • 0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor

0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor

Type: Piezoresistive
Measuring Medium: Media Compatible with 316L Stainless Steel
Output Signal Type: Analog Type
Production Process: Integration
Material: Stainless Steel
IP Rating: IP65
Samples:
US$ 150/Piece 1 Piece(Min.Order)
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Basic Info.

Model NO.
WA19
Certification
ISO
Customized
Customized
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
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.

0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor
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-
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
 
0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor

Connect Pin
0-40kpa… 7MPa High Accuracy Mini Diffused Silicon Oil-Filled Pressure Sensor



 

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