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Hefei WNK Smart Technology Co.,Ltd
Home ProductsHead Mounted Temperature Transmitter

4 - 20mA PT100 Head Mounted Temperature Transmitter 24V Power Supply Range

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4 - 20mA PT100 Head Mounted Temperature Transmitter 24V Power Supply Range

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Large Image :  4 - 20mA PT100 Head Mounted Temperature Transmitter 24V Power Supply Range

Product Details:
Place of Origin: Anhui, China
Brand Name: WNK
Certification: ISO
Model Number: WNK-621
Payment & Shipping Terms:
Minimum Order Quantity: 1 pcs
Price: Negotiable
Packaging Details: Standard expoort carton packing
Payment Terms: T/T, Western Union, MoneyGram
Detailed Product Description
Input: RTD, T/C Output: 4-20mA 2 Wire
Temperature Range: -200~800 ℃ Display: No
Power Supply Range: 24V (standard) Accuracy: 0.5%
High Light:

high accuracy temperature transmitter


field mounted temperature transmitter

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




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.




  • 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


Power supply: DC 8~36V( Recommend DC 24V )
Signal Range: Pt100 (-200~650℃) Pt1000 (-50~300℃)
Cu50 (-50~150℃) Cu100 (-50~150℃)
R(-50~1700℃), B(0~1800℃)
±20mV,±60mV(Linear voltage,Resolution 0.002mV)
±500.0mV(Linear voltage,Resolution 0.1mV)
R400(0~400Ω Linear resistance,Resolution 0.01Ω)
R2000(0~2000Ω Linear resistance,Resolution 0.1Ω)
Temperature resolution: Thermocouple 0.1℃(Measuring and Transmitting) / Thermal Resistance 0.01℃(Measuring and Transmitting)
Sampling Rate: 5 times/second
Current output resolution: 2uA
Output accuracy ±0.2%
Temperature drift: <50ppm/℃
Operating temperature: Temperature-20~+80℃ Humidity <85%RH.
Power Consumption: Less than 0.2W
Dimension: Diameter 44mm,Height 20mm,Mounting hole 33~36mm

Contact Details
Hefei WNK Smart Technology Co.,Ltd

Contact Person: Leo Zhang

Tel: +8615056948430

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