Smart 4-20mA Head Mounted Temperature Transmitter with Universal Input

Instruction

WNK621 4~20mA two-wire integrated circuit board is specifically designed for intelligent temperature transmitters. With microprocessor as the core of its highly-integrated circuit, it reliably achieves thermal resistance/thermocouple signal acquisition, processing and loop output, and also provides single bus digital interface and dedicated configurator to achieve full digital debugging and calibrating. it particularly well-suited for producing and manufacturing two-wire intelligent temperature transmitters.

Features

• Two-wire work mode
• Pt100,Cu50,Cu100, Pt1000 Four thermal resistance full measurement range
• K, S, R, B, N, E, J, T Eight thermocouples full range measurement
• Cold end automatic compensation
• Thermal resistance three-wire measurement automatically eliminating the lead resistance
• Thermal resistance/ Thermocouple disconnection fault prompts and output processing;
• Independent setting for temperature transmission output range
• High accuracy, low temperature drift
• Single wire communication interface, dedicated configurator debugging
• Unique output migration, reverse function
• Highly integrated, Anti-jamming design and Hardware and Software watchdog

Technical Data

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.