Advanced Signal Isolation Module for RS485 and RS232 Communication Automation Control Converter

• Customization: Available
• Type: Analog Signal Acquisition
• Output Signal Type: Analog Output
• Model NO.: WJ121
• Production Process: SemiConductor Integrated
• Material: Metal
• Accuracy Grade: 0.1G
• Application: Switching Power Supply
• IP Rating: IP20
• Certification: CE
• Customized: Customized
• Features: Analog Signal Acquisition, Isolated RS-485/232 out
• Features1: Can Program and Calibrate Modules Accuracy Via RS-
• Features2: High Reliability, Easy Programming, Easy Installat
• Typical Application: Signal Measurement/Monitoring/Control
• Typical Application1: RS-485 Remote I / O, Data Acquisition
• Typical Application2: 4-20mA or 0-5V Signal Acquisition
• Input Type: Input Current / Voltage Input
• Typical Application3: RS-485 Remote I / O, Data Acquisition
• Advantage: Medical, Industrial Product Development
• Quantity: 99999
• Transport Package: Boxed
• Specification: 106 mm x 59mm x 37mm
• Trademark: wayjunr
• Origin: Guangdong, China
• Production Capacity: 99999
• Package Size: 0.00cm * 0.00cm * 0.00cm
• Package Gross Weight: 0.000kg

Product Description

WJ121 series Analog Signal to RS485/232 Converter
(A/D Converter)

Features:
>> Analog signal acquisition, isolated RS-485/232 output
>> 12-bit AD converter, testing accuracy>0.1%
>> Can Program and calibrate modules accuracy via RS-485/232 interface
>> Signal input/output: 1000VDC Isolation
>> Wide power supply: 8~32VDC
>> High reliability, easy programming, easy installation.
>> Can program setting module address, baud rate
>> 0-5V voltage signal or 4-20mA current signal input
>> Supports MODBUS RTU protocol
>> DIN35 Rail-mounted
>> Size: 105.5x24x59mm
>> AD conversion rate can be programmed
Typical Application:
>> Signal measurement/monitoring/control
>> RS-485 remote I / O, data acquisition
>> RS-232/485 bus industrial automation control system
>> Industrial field signal data acquisition and recording
>> Industrial field signal isolation and long-term transmission
>> Medical, industrial product development
>> 4-20mA or 0-5V signal acquisition 

Product Selection:	WJ121 U(A)
Input Voltage or Current Signal	Interface
U1:0-5V                  A1:0-1mA U2:0-10V            A2:0-10mA U3:0-75mV            A3:0-20mA  U4:0-2.5V             A4:4-20mA  U5:0-±5V              A5:0-±1mA  U6:0-±10V            A6:0-±10mA  U7:0-±100mV      A7:0-±20mA  U8:user-defined	485: output is RS-485 interface  232: output is RS-232 interface
Sample 1: part No.:WJ121-A4-485 4-20mA input signal,output is RS485 interface Sample 2: part No.:WJ121-U1-232 0-5V input signal,output is RS232 interface Sample 3: part No.:WJ121-U8(U8:0-12V)-485 0-12V input signal,output is RS485 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

Global Showrooms

Factory Capabilities

General parameters:
 (typical @ +25 ℃, Vs to 24VDC)
 Input type: Input current / voltage input
 Accuracy: 0.1%
 Temperature drift:± 50 ppm / ℃ (± 100 ppm / ℃, maximum)
 Input Resistance: 150Ω (4-20mA/0-20mA/0- ± 20mA current input) 

300Ω (0-10mA/0- ± 10mA current input)
 1.5KΩ (0-1mA/0- ± 1mA current input)
 >200K (5V/10V voltage input)
 >1MΩ (<2.5V voltage input)
Bandwidth: -3 dB 10 Hz
Conversion rate: 10 Sps (factory default, the user can send commands to modify the conversion rate)
 You can set the AD conversion rate 2.5 SPS, 5 SPS, 10 SPS, 20 SPS.
(Channel conversion rate = AD conversion rate / Open numbers of channel)
 NOTE: after Modify the conversion rate, need re-calibration module, otherwise the measurement data
will be biased. You can also specify the conversion rate when ordering, we press the conversion rate you require
recalibration in the factory.
Common Mode Rejection (CMR): 120 dB (1kΩ Source Imbalance @ 50/60 Hz)
Normal Mode Rejection (NMR): 60 dB (1kΩ Source Imbalance @ 50/60 Hz)
Input Protection: over-voltage protection, over-current protection
Communication: RS-485 protocol or RS-232 standard characters protocols and MODBUS RTU communication
protocol
 Baud Rate (2400, 4800, 9600, 19200, 38400 bps) can be selected via software
Address (0 to 255) can be selected via software
Communication Response Time: 100 ms maximum
Power Supply: +8 ~ 32VDC wide range power supply, internal anti-reverse and over-voltage protection circuit
Power Loss: less than 1W
Operating Temperature: - 45 ~ +80 ℃
Humidity: 10 ~ 90% (no condensation)
Storage Temperature: - 45 ~ +80 ℃
Storage Humidity: 10 ~ 95% (no condensation)
Isolation Voltage: input / output: 1KVDC, 1 minute, leakage current:1mA
 Which output signal and power supply are common ground.
Shock Voltage: 1KVAC, 1.2/50us (peak)
Dimensions: 79 mm x 69.5 mm x 25mm 

Product Overview:
 WJ121 series products realize the signal acquisition between sensor and host, to measure analog signals. WJ121
products can be applied to RS-232/485 bus industrial automation control system,4-20mA / 0-5V signal measurement,
monitoring and control,0-75mV ,0-100mV and other small-signal measurement and signal isolation and long-term
industrial transmission and so on.
Products include power supply isolation, signal isolation, linearization, A/D conversion and RS-485 serial
communication. Each serial interface can connect up to 255 pieces WJ121 Series modules, communication using ASCII
code or MODBUS RTU communication protocol, and its instruction set compatible with the ADAM modules, baud rate
can been set by the code, with other manufacturers control module hang in the same RS-485 bus for easy programming. 

Certifications

FAQ

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