Thermocouple Temperature Signal to RS-485, Modbus Data Acquisition Module

• Customization: Available
• Installation Type: Standard DIN35 Rail Installation
• Sensing Type: Thermocouple
• Model NO.: WJ127
• Contact: Contactless
• Output Signal Type: RS-485
• Production Process: Normal Wirewound
• Material: Ceramics
• Measuring Medium: Humidity
• IP Rating: IP20
• Certification: CE
• Customized: Customized
• Typical Applications: Temperature Signal Measurement, Monitoring, and Co
• Typical Applications1: RS-485 Remote I/O, Data Acquisition
• Quantity: 9999
• Product Features: One Thermocouple Signal Acquisition Isolation Conv
• Product Features1: Using a 12 Bitad Converter, The Measurement Accura
• Advantage: Users Can Program Module Addresses, Baud Rates, Et
• Transport Package: Boxed
• Specification: 106 mm x 59mm x 24mm
• Trademark: wayjunr
• Origin: Guangdong, China
• Production Capacity: 9999

Product Description

Thermocouple temperature signal to RS-485, Modbus data acquisition module
 WJ127

 Product features:
 One thermocouple signal acquisition isolation conversion RS-485 output
 Using a 12 bitAD converter, the measurement accuracy is better than 0.1%
 Isolation withstand voltage between signal input/output 1000VDC
 Wide power supply range: 8~32VDC
 K/J/T/E/R/S/B/N type thermocouple input
 High reliability, easy programming, and easy application
 Standard DIN35 rail installation, convenient for centralized wiring
 Users can program module addresses, baud rates, etc
 Supports Modbus RTU communication protocol and automatic recognition protocol
 Industrial flame retardant shell, RS485 port surge protection
 Low cost, small volume modular design
 Typical applications:
 Temperature signal measurement, monitoring, and control
 RS-485 remote I/O, data acquisition
 Intelligent building control, security engineering and other application systems
 RS-485 bus industrial automation control system
 Industrial site signal isolation and long-distance transmission
 Equipment operation monitoring
 Measurement of sensor signals
 Acquisition and recording of industrial field data
 Development of medical and industrial control products
 Various types of thermocouple signal acquisition

Specification

Product selection:
WJ127
Communication interface	485: Output as RS-485 interface
Selection example 1: Model: WJ127-485 represents thermocouple signal input, and the output is RS-485 interface

Company Profile

Shenzhen Bridal Manufacturing Co.

Since: 2011
Specialty: The company's main products include analog acquisition modules, signal isolators/conversion modules, and signal transmitters
Capacity: Produce 10000 per month
Advanced Features:
Switching to TCP/network/remote IO module, Modbus RTU to TCP, RS232/485 to Ethernet, analog signal (current/voltage/thermistor/frequency/displacement/speed/pulse) isolation transmitter, mV differential signal amplifier, isolation amplifier, micro power DC-DC module power supply, etc

Global Showrooms

Factory Capabilities

 WJ127 General Parameters:
 (Typical @+25 ℃, Vs is 24VDC)
 Input type: thermocouple signal input, supports multiple thermocouple signals, K/J/T/E/R/S/B/N type thermocouples
 Accuracy: 0.1% (excluding cold end sensor error)
 Temperature drift: ± 50 ppm/℃ (± 100 ppm/℃, maximum)
 Input resistance: greater than 1M Ω
 Cold end compensation sensor accuracy: ± 0.5 ℃
 Bandwidth:-3 dB 10 Hz
 Conversion rate: 10 Sps (factory default value, users can modify the conversion rate by issuing commands.)
 You can set the AD conversion rate to 2.5 SPS, 5 SPS, 10 SPS, and 20 SPS by sending commands. (Channel
 conversion rate=AD conversion rate/number of open channels)

Note: Please recalibrate the module after modifying the conversion rate, otherwise the measured data may have
 deviations. You can also specify the conversion rate when placing an order, and we will
 recalibrate the product according to the conversion rate you require when it leaves the factory.
 Common moderejection (CMR): 120 dB (1k Ω Source Imbalance @ 50/60 Hz)
 Normal mode suppression (NMR): 60 dB (1k Ω Source Imbalance @ 50/60 Hz)
 Input protection: overvoltage protection, overcurrent protection
 Communication: RS-485 standard character protocol and MODBUS RTU communication protocol
 Baud rates (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be selected by software
 The address (0-255) can be selected by software
 Communication response time: 100 ms maximum
 Working power supply:+8~32VDC wide power supply range, with internal anti reverse and overvoltage protection
 circuits
 Power consumption: less than 1W
 Working temperature:-45~+80 ℃
 Working humidity: 10~90% (no condensation)
 Storage temperature:-45~+80 ℃
 Storage humidity: 10~95% (no condensation)
 Isolation withstand voltage: 1KVDC between input/output, 1 minute, leakage current 1mA
 The RS-485 output and power supply are grounded together.
 Surge resistant voltage: 1KVAC, 1.2/50us (peak value)
 Dimensions: 106 mm x 59mm x 24mm

Product Overview:
 diagram 1 WJ127 module appearance diagram
 The WJ127 product implements signal acquisition between sensors and hosts for detecting analog signals. The
 WJ27 series products can be applied to RS-485 bus industrial automation control systems, measurement of
 K/J/T/E/R/S/B/N thermocouple signals, as well as industrial field signal isolation and long-distance transmission.
 The product includes power isolation, signal isolation, linearization, A/D conversion, and RS-485 serial
 communication. Each serial port can connect up to 255 W1J25 series modules, and the communication method adopts
 ASCII code communication protocol or MODBUS RTU communication protocol. The address and baud rate can be set
 by code, and can be hung on the same RS-485 bus with control modules from other manufacturers for easy computer
 programming.

FAQ

Q: How to contact you?
A: Please contact us via email or online customer service