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4-20ma to RS485 Converter

4-20ma to RS485 Converter
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Product Code : AIOM 01
Brand Name : WAYJUN
Product Description

Analog Current signal to RS485 or RS232 Converter/Analog data acquisition module.Slim-line plastic housing with integral 35mm DIN rail mounting , power supply(8-32VDC)

 Products selection guide

WJ21  U(A)

Input signal(current/voltage)                        Communication Interface
   U1:0-5V                  A1:0-1mA             485:RS-485 output interface
   U2:0-10V                A2:0-10mA           232:RS-232 output interface 
   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     A8:user-defined

Products List Samples:

  • WJ21-A4-485 (4-20ma input signal, output is rs485 interface)
  • WJ21-A3-232 (0-20ma input signal,output is rs232 interface)
  • WJ21-A7-485(0-±20mA input,output is rs485 interface)
  • WJ21-A4-232 (4-20ma input signal, output is rs232 interface)

Other types,please check our datasheet.

Features:

  • Analog signal acquisition,isolated RS-485/232 output
  • 12-bit AD converter,testing accuracy>0.1%
  • Can be remotely reconfigured for modules accuracy
  • Three-port isolation(input/output/assistant power supply): 3000VDC
  • Power supply:8~32VDC
  • High reliability,easy programme,installation.
  • Can programme setting module address,baud rate
  • 0-5V/0-10V/0-12V voltage signal or 4-20mA/0-20mA current signal input
  • Support Modbus RTU
  • DIN35 Rail-mounted
  • Dimension:106.7x79.0x25.0mm

Application:

  • Signal testing/monitoring/cintrol
  • RS-232/485 industrial automation control system
  • Industial field signal isolation
  • Process Monitoring & Control
  • Test sensors signal
  • Laboratory Data Acquisition
  • Medical machine monitoring
  • 4-20mA/0-5V signal acquisition

General parameters: (typical @ +25 deg.C, Vs to 24VDC)

  • Input type: Input current / voltage input

  • Accuracy: 0.1%

  • Temperature drift:± 30 ppm / (± 50 ppm / maximum)

  • Input Resistance: 50 (4-20mA/0-20mA/0- ± 20mA current input)

  • 100(0-10mA/0- ± 10mA current input)

  • 1K(0-1mA/0- ± 1mA current input)

  • 1M(voltage input)

  • Bandwidth: -3 dB 10 Hz

  • Conversion rate: 10 Sps

  • Common Mode Rejection (CMR): 120 dB (1kohm Source Imbalance @ 50/60 Hz)

  • Normal Mode Rejection (NMR): 60 dB (1kohmSource 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 (1200,2400,4800,9600,19200,38400 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 deg.C

  • Humidity: 10 ~ 90% (no condensation)

  • Storage Temperature: - 45 ~ +80 deg.C

  • Storage Humidity: 10 ~ 95% (no condensation)

  • Isolation Voltage: input / output: 3KVDC, 1 minute, leakage current:1mA

Which output signal and power supply are common ground.

  • Shock Voltage: 3KVAC, 1.2/50us (peak)

  • Dimensions: 106.7 mm x 79 mm x 25mm 

 


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