WAYJUN New product: PT100 turn RS-485, thermal resistance temperature modbus data acquisition module

Features:

● PT100 / PT1000 thermal resistance isolation conversion RS-485 output

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

● 12-bit AD converter, measurement accuracy is better than 0.1%

● Program of calibration module via the RS-485 interface

● Signal input / output isolation withstand voltage 1000VDC

● Wide power supply range: 8 ~ 32VDC

● High reliability, convenient programming, easy to apply

● Standard DIN35 rail installation, convenient centralized wiring

● User programmable setting module address, baud rate, etc.

● Support MODBUS RTU communication protocol, automatic identification protocol

● Industrial flame retardant housing, RS485 port surge protection

● AD conversion rate can be programmed

typical application:

● PT100 temperature signal measurement

● RS-485 remote I / O, data collection

● Intelligent building control, security engineering and other application systems

● RS485 bus industrial automation control system

● Industrial field signal isolation and long-term transmission

● Equipment operation monitoring

● Measurement of sensor signals

● Acquisition and record of industrial field data

● Medical, industrial control product development

product description:

WJ125 product implements multiple signal acquisitions between sensors and hosts to detect temperature signals. WJ125 series products can be applied to RS-485 bus industrial automation control systems, temperature signal measurements, monitoring, and control, etc.

Products include power isolation, signal isolation, linearization, A / D conversion, and RS-485 serial communication. Each serial port can be connected to 255 W1J25 series modules, and the communication mode uses the ASCII code communication protocol or Modbus RTU communication protocol, address and baud rate can be set by code settings, can be hung in the same RS-485 bus with other manufacturers' control modules. It is easy to program.

The WJ125 series is based on a single-chip intelligent monitoring and control system, all user setting calibration values, information, baud rates, data formats, checksum, and other configuration information stored in non-volatile memory EEPROM.

WJ125 series products are isolated from industrial standards, manufacturing, signal input / output, can withstand 1000VDC isolation voltages, strong anti-interference ability, high reliability. Working temperature range - 45 ° C ~ + 85 ° C

WJ125 general parameters:

(Typical @ + 25 ° C, VS is 24VDC)

Input Type: PT100 Input / PT1000 Input

Essence: 0.1%

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

Bandwidth: -3 dB 10 HZ

Conversion rate: 10 SPS (factory default value, user can send a command to modify the conversion rate.)

               The AD conversion rate can be set by sending a command to 2.5 SPS, 5 SPS, 10 SPS, 20 SPS. (Channel conversion rate = AD conversion rate / open channel number)

              Note: After modifying the conversion rate, please re-calibrate the module, otherwise the measured data will deviate. You can also indicate the conversion rate when ordering, we can re-calibrate the conversion rate you asked when the product is shipped.

Commodity inhibition (CMR): 120 dB (1kΩ Source Imball @ 50/60 Hz)

Storm inhibition (NMR): 60 dB (1KΩ Source Imball @ 50/60 Hz)

Input protection: overvoltage protection, overcurrent protection

Communication: Protocol RS-485 Standard Character Protocol and Modbus RTU Communication Agreement

             Baud Rate (2400, 4800, 9600, 19200, 38400, 57600, 115200 bps) can be selected

Address (0 ~ 255) can be software selection

Communication Response Time: 100 MS Max

Working power supply: +8 ~ 32VDC wide power supply range, there is anti-reverse and overvoltage protection circuit

Power consumption: less than 1W

Work temperature: - 45 ~ + 80 ° C

Work humidity: 10 ~ 90% (no condensation)

Storage temperature: - 45 ~ + 80 ° C

Storage humidity: 10 ~ 95% (no condensation)

Isolation, pressure: input / output between: 1kVDC, 1 minute, leakage current 1mA

             Where RS-485 outputs and power supplies are common.

Impact resistant voltage: 1kvac, 1.2 / 50US (peak)

Dimensions: 79 mm x 69.5mm x 25mm