8-channel Pt100/Pt1000 temperature to Modbus TCP and MQTT network data acquisition module WJ285

Product features:

●Convert 8-channel Pt100/Pt1000 thermistor to standard Modbus TCP protocol

● Supports communication protocols such as TCPServer, UDP, MQTT, etc

● Built in web page function, data can be queried through web pages

●Standard 3-wire measurement method with automatic long line compensation

●Using a 12 bit AD converter, the measurement accuracy is better than 0.1%

●The accuracy of the calibration module can be programmed through the network

●Wide power supply range: 8~32VDC

●High reliability, easy programming, and easy application

●Standard DIN35 rail installation, convenient for centralized wiring

●Users can set module IP addresses and other parameters on the webpage

●Low cost, small size, modular design

● Dimensions: 106mmx59mmx37mm

Typical applications:

● Signal measurement, monitoring, and MQTT reporting

●TCP network, data collection

●Intelligent building control, security engineering and other application systems

●Industrial automation control system based on TCP network

●Equipment operation monitoring, MES system

●Measurement of sensor signals

● Acquisition and recording of industrial field data

●Development of medical and industrial control products

●Pt100/Pt1000 temperature signal measurement

WJ285 General Parameters:

(Typical @+25 ℃, Vs is 24VDC)

Input type: Pt100 input/Pt1000 input

Measurement temperature range: -200~600 ℃

Accuracy: 0.1%

Temperature drift: ± 50ppm/℃ (± 100ppm/℃, maximum)

Bandwidth: -3dB 10Hz

Conversion rate: 16FPS (factory default value, users can modify the conversion rate on the webpage). ）

You can set the AD conversion rate to 2SPS, 4SPS, 8SPS, 16SPS, 32SPS, 50SPS, 80SPS, 100SPS by sending commands

Common mode rejection (CMR): 120dB (1k Ω) SourceImbalance@50 /60Hz）

Norm suppression (NMR): 60dB (1k Ω) SourceImbalance@50 /60Hz）

Input protection: overvoltage protection, overcurrent protection

Communication: MODBUS TCP communication protocol or TCP socket character protocol or MQTT protocol

Web page: Supports web access module and web page setting module parameters.

Interface: RJ-45 network interface.

Communication response time: 100ms maximum

Working power supply:+8~32VDC wide power supply range, with internal anti reverse and overvoltage protection circuits

Power consumption: less than 3W

Working temperature: -45~+80 ℃

Working humidity: 10~90% (no condensation)

Storage temperature: -45~+80 ℃

Storage humidity: 10~95% (no condensation)

Dimensions: 106mmx59mmx37mm