Ntc to RS-485 Thermistor Temperature Modbus Data Acquisition Module

• Customization: Available
• Installation Type: Standard DIN35 Rail Installation
• Sensing Type: Thermocouple
• Model NO.: WJ126
• Contact: Contactless
• Output Signal Type: RS485
• Production Process: Normal Wirewound
• Material: Resistive Lithium Chloride
• Measuring Medium: Humidity
• IP Rating: IP20
• Certification: CE
• Customized: Customized
• Input Type: Ntc Resistor Input
• Product Features: Ntc10K/Ntc20K Resistance Isolation Conversion RS-4
• Typical Applications: Ntc Thermistor Temperature Signal Measuremen
• Wide Power Supply Range: 8~32VDC
• Advantage: High Reliability, Easy Programming, and Easy Appli
• Quantity: 99999
• Typical Applications1: RS-485 Remote I/O, Data Acquisition
• Accuracy: 0.1%
• Transport Package: Boxed
• Specification: 106 mm x 59mm x 37mm
• Trademark: wayjunr
• Origin: Guangdong, China
• Production Capacity: 99999

Product Description

 NTCtoRS-485, ThermistorTemperature Modbus DataAcquisition Module WJ126

Product features:
 NTC10K/NTC20K resistance isolation conversion RS-485 output
 Internal MCU performs linear processing on the input resistance value
 Using a 12 bitAD converter, the measurement accuracy is better than 0.1%
 The accuracy of the calibration module can be programmed through the RS-485 interface
 lsolation withstand voltage between signal input/output 1000VDC
 Wide power supply range: 8~32VDC
 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
 The ADconversion rate can be programmed and set
 Typical applications:
 NTC thermistor temperature signal measurement
 RS-485 remote I/O, data acquisition
Intelligent building control, security engineering and other application systems
RS485 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

Specification

Product selection	WJ126- Z- T- 485
Input type: NTC	Temperaturerange: T	communication interface
NTC1K  NTC5K  NTC10K  NTC20K  NTC50K  NTC100K  Other  NTC	T1:-20-100℃  T2: 0-100℃  T3: 0-150℃  T4: 0-200℃  T5: 0-400℃  Tu: User defined	485: Output as RS-485 interface
Selection Example 1: Model: WJ126-NTC10K-T1-485 indicates Input: NTC10K, Temperature Range:-20~100 ℃,output  is RS-485	Selection example 2: Model: WJ126-NTC20K-T4-485 indicates input: NTC20K, temperature range: 0~200 ℃, output  is RS-485	Selection example 3: Model: WJ126-NTC3K-Tu-485 indicates input: NTC3K, temperature range: 0~50 ℃, output is  RS-485

Company Profile

Shenzhen Weijunrui Technology Co., Ltd

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

WJ126 General Parameters:
 (Typical @+25 ℃, Vs is 24VDC)
 Input type: NTC resistor input
 Accuracy: 0.1%
 Temperature drift: ± 50 ppm/℃ (± 100 ppm/℃, maximum)
 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

 Function Introduction:
 The WJ126 signal isolation acquisition module can be used to measure one temperature signal.
 1,Temperature signal input
 12 bit acquisition accuracy, 1 temperature signal input. All signal input ranges have been calibrated before the
 product leaves the factory. During use, users can also easily program and calibrate themselves.
 2,Communication Protocol
 Communication interface: 1 standard RS-485 communication interface.
 Communication Protocol: Supports two protocols, the character protocol defined by the command set and the
 MODBUSRTUcommunication protocol. The module automatically recognizes communication
 protocols and can achieve network communication with various brands of PLCs, RTUs, or computer
 monitoring systems.
 Data format: 10 digits. 1 start bit, 8 data bits, and 1 stop bit.
 The communication address (0-255) and baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be set;
 The communication network can reach a maximum distance of 1200 meters and is connected through
 twisted pair shielded cables.
 High anti-interference design of communication interface, ± 15KV ESD protection, communication response time
 less than 100mS.
 3,anti-interference
 Checksums can be set as needed. There is a transient suppression diode inside the module, which can effectively
 suppress various surge pulses, protect the module, and the internal digital filter can also effectively suppress power
 frequency interference from the power grid

Certifications

FAQ

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