Thermal Resistance Temperature Modbus Data Acquisition Module PT100 PT1000 to RS-485

• Customization: Available
• Installation Type: Tee Type
• Sensing Type: Thermocouple
• Model NO.: WJ225
• Contact: Contactless
• Output Signal Type: Digital Type
• Production Process: Normal Wirewound
• Material: Ceramics
• Measuring Medium: Humidity
• IP Rating: IP20
• Certification: CE
• Customized: Customized
• Input Type: PT100 Input/PT1000 Input
• Measurement Temperature Range: -200~600 ºC
• Accuracy: 0.1%
• Temperature Drift: ± 50 Ppm/ºC (± 100 Ppm/ºC,
• Bandwidth: -3 dB 10 Hz
• Power Consumption: Less Than 1W
• Working Temperature: -45~+80 ºC
• Working Humidity: 10~90% (No Condensation)
• Transport Package: Wayjunr
• Specification: 120 x 70 x 43mm
• Trademark: wayjunr
• Origin: Guangdong, China
• Production Capacity: 9999

Product Description

8-channel Pt100/Pt1000 to RS-485/232, thermal resistance temperature Modbusdataacquisition module WJ225

Product features:
Pt100/Pt1000 thermal resistance isolation conversion RS-485 output
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 RS-485 interface
Isolation 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 AD conversion rate can be programmed and set
Typical applications:
Pt100 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 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: WJ225 - Z Selection example 1: Model: WJ225- Z1-485 indicates input: Pt100, temperature range: -200~600 ℃, output is RS-485interface Selection Example 2: Model: WJ225- Z5-485 Input: Pt1000, Temperature Range: -200~600 ℃, Output: RS-485Input type: Z communication interface Z1: PT100 485: Output as RS-485 interface Z5: Pt1000 232: Output as RS-232 interface

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

WJ225 General Parameters:

Function Introduction:

(Typical @+25 ℃, Vs is 24VDC)
Input type: Pt100 input/Pt1000 input
Measurement temperature range: -200~600 ℃
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 mayhavedeviations. 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 mode rejection (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: Protocol RS-485/RS-232 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 protectioncircuits
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: 120mm x 70mm x 43mm

The WJ225 signal isolation acquisition module can be used to measure 8 temperature signals. 1, Temperature signal input
12 bit acquisition accuracy, 8 temperature signal inputs. Measure temperature range -200~600 degrees. Theproduct has been fully calibrated before leaving the factory. During use, users can also easily programandcalibratethemselves. 2, Communication Protocol
Communication interface: 1 standard RS-485 or RS-232 communication interface. Communication Protocol: Supports two protocols, the character protocol defined by the command set andtheMODBUS RTU communication protocol. The module automatically recognizes communicationprotocols and can achieve network communication with various brands of PLCs, RTUs, or computermonitoring 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) canbeset;The communication network can reach a maximum distance of 1200 meters and is connectedthroughtwisted pair shielded cables. High anti-interference design of communication interface, ± 15KV ESD protection, communication responsetimeless than 100mS. 3, anti-interference
Checksums can be set as needed. There is a transient suppression diode inside the module, which caneffectivelysuppress various surge pulses, protect the module, and the internal digital filter can also effectively suppresspowerfrequency interference from the power grid.

FAQ

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