4-20mA Hart Smart Pressure Transmitter for High Temperature Application


WNK5 series pressure transmitter is the high performance pressure transmitters provided by Hefei WNK Smart Technology Co., Ltd. It transforms the physical signal of pressure, differential pressure and level etc into standard signal, by collecting cell sensor and digital processing circuit.

Our WNK5 series has the best precision and signal uniformity by applying advanced specified integrated circuit digital technology. Each set of transmitter is ambient temperature compensated in our factory, to ensure max precision and mini drift in wide working temperature range.

Product application
1. Gauge & absolute pressure measurement in gases, steam or liquids in all areas of of engineering process and measurement.
2. Level, volume or mass measurement in liquids.
3. Working with detecting element, measure the flow of gases, steam and liquid flow.( volume and mass flow)
4. High pressure up to 700bar.

Product feature
1. High reference accuracy up to 0.05%.
2. Long-term drift ≤±0.25%URL for 1 year.
3. Hart, PROFIBUS-PA or FF protocol for option.
4. Intrinsically safe and Exd explosion proof
5. Range down ratio 100:1
6. Smart type for easy calibration

Technical data

Installation diagram


Ordering sheet

Founded in 2004, HEFEI WNK SMART TECHNOLOGY 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.