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4~20mA SPI I²C 0-5V Compact Pressure Sensor Transmitter

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Details

Introduction

WNK80MA is a series of high performance compact pressure transmitter by using ASIC signal conditioning chip and dry ceramic capacitive pressure sensor. It has features of anti-corrosion, anti-wear, shock resistance and vibration resistance. Its anti-overload capacity is up to 100 times of the range, completely solved poor overload in small range of other sensors. In addition to general ranges of normal sensors, its most outstanding characteristic is the positive and negative gauge pressure function. With high output and wide range, WNK80MA is especially suitable for manufacturing of high-performance industrial control pressure transmitter and harsh environment pressure measurement.

Applications：

Pressure measurement of gas, vapor or liquid in various areas;
Liquid level, volume or mass measurement;
Integrated in a variety of user-defined solutions;
Smart water and gas management, smart fire controling, automotive electronics controlling, air compressor, HVAC, pump, valve and etc;

Product Features:

Specific high performance ASIC conditioning circuit;
Dry ceramic capacitive pressure sensor;
Robust ceramic capacitive sensitive membrane;
Excellent anti-corrosive and anti-wear performance;
Suitable for pollution and corrosive environment;
Various electrical connectors optional;
Rapid response, no hysteresis;
Wide operating temperature range -40~135℃;
Anti-icing;
0.5…4.5V and 4…20mA analog output or I2C and SPI digital output;
Accurate, stable and reliable;

Technical Parameters:

Input
Pressure type	Gauge pressure, sealing pressure, absolute pressure
Measure range	0.005~10MPa
Output
Analog	0.5…4.5V, 4…20mA
Digital	I2C, SPI
Accuracy
0.5%	Linearity, hysteresis, repetitiveness：＜0.5% sensor full range
1%	Linearity, hysteresis, repetitiveness：＜0.1% sensor full range
Thermal effects
Compensation Temperature	-20…70℃，
Temperature effect
Accuracy 0.5%	In compensation temperature, accuracy is ±0.5% for LRV & URV are lower than sensor full range
Accuracy 1%	In compensation temperature, accuracy is ±1% for LRV & URV are lower than sensor full range
Housing material	Stainless steel 304
Ingress protection	IP65/IP67

Power Supply:

Supply voltage

5V 24VDC regulated power supply,

Supply voltage effect

5V supply voltage effect: min.3V/max.5.5V

●For 0.5…4.5V output sensor, voltage has no effect for linearity and temperature compensation, voltage is proportional to LRV and FRV.

●For I2C and SPI digital output sensor, voltage has no effect for linearity, LRV, URV and compensation temperature.

24V supply power effect: min.9V/max30V

●For 4…20mA current output sensor, voltage has no effect for linearity, LRV, URV and compensation temperature.

Operating condition：Temperature

Environment	-40 to 85℃,
Storage	-45 to 85℃,

Ordering Info：

Model	Product description
WNK80MA	Pressure Transmitter
Code	Pressure type
A	Absolute pressure
G	Gauge pressure
S	Sealing pressure
Code	Accuracy
F	0.5%
O	1%
Code	Sensor range
A	5bar
B	10 bar
C	20 bar
D	50 bar
E	100 bar
Other ranges are in developing
Code	Output
1	0.5…4.5V
2	4…20mA
3	I2C
4	SPI
5	Customization
Pls contact WNK for other outputs
Code	Electrical connector
C1	Packard
C2	M12
C3	Cable outlet（pls put down cable length, such as 01 for 1 meters）
C4	Mini DIN43650
Code	Process connector
P1	G1/4
P2	1/4-18NPT
P3	1/8-27NPT
P4	M14×1.5
P5	M12×1.5
P6	1/4-19PT
P7	7/16-20UF(female)
P8	Customization
Pls contact WNK for other process connectors
Typical model：WNK80MA GB2 C1 P1 WNK80MA GB2 C301 P1________C3 direct cable outlet length is 1 meter.

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