• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
SensorsONE

SensorsONE

Measurement Instrumentation Products

  • Products
  • Tools
  • Contact

Loop Powered 4-20mA to Current/Volts Isolator – 420i & 420V

Request Price
PDF

Loop Powered 4-20mA to Current/Volts Isolator - 420i & 420V

The 420i 4-20mA loop powered isolator is typically used to provide an isolated 4-20mA current loop from any existing 4-20mA loop. This isolated 4-20mA can then be connected to any input stage without affecting other signals connected to the same earth. The output can be connected to any potential within 1kV of the input negative terminal while transients of 2.5kV can be withstood.

  • Isolated 4-20mA output
  • Loop powered
  • Low Voltage drop
  • High Accuracy, better than 0.1%
  • 1kV Isolation

Contents

  • Product Description
  • Isolator Types
    • 420i 4-20mA out
    • 420i 1-5V out
    • 420V 0-5V out
    • 420V 0-10V out
  • Related Documents
    • Specification data sheets

Product Description

The 420i loop powered isolator is a 0(4)-20mA direct current isolator. The isolator derives its power from the input signal and therefore requires no external power supply.

The output of the isolator is typically used to enable two control and instrumentation devices, e.g. PLC and local chart recorder, with non-isolated inputs, to monitor the same transmitter output simultaneously.

Alternatively the isolator can be used to isolate signals from non-isolated transmitters or as a noise reduction device.

Two variants are available. The 420i-1 which has a built in precision 250Ω resistor to give a 1-5V output, and the 420V which gives a 0-10V output from a 4-20mA input, whilst dropping just 5V from the input loop.

Another typical application is to use the 420i to enable two instruments to monitor the same 4-20mA at the same time. The 420i is wired in series with the input of the first instrument and then the output wired to the second.

The 420i also acts as a noise reduction device, giving a ‘clean’ 4-20mA output.

Isolator Types

420i 4-20mA out

4 to 20 milliamp isolated output signal

  • SKU ID: s1-420i-0001
  • Part No: II-420i-AA-8-000
  • Input Signal: 4-20mA
  • Output Signal: 4-20mA
  • Power Supply: Loop powered
  • Installation: DIN Rail TS35
  • Electrical Connections: Screw clamp with pressure plate

420i 1-5V out

1 to 5 volt dc isolated output signal

  • SKU ID: s1-420i-0002
  • Part No: II-420i-AF-8-000
  • Input Signal: 4-20mA
  • Output Signal: 1-5Vdc
  • Power Supply: Loop powered
  • Installation: DIN Rail TS35
  • Electrical Connections: Screw clamp with pressure plate

420V 0-5V out

0 to 10 volt dc isolated output signal

  • SKU ID: s1-420v-0003
  • Part No: II-420V-AE-8-000
  • Input Signal: 4-20mA
  • Output Signal: 0-5Vdc
  • Power Supply: Loop powered
  • Installation: DIN Rail TS35
  • Electrical Connections: Screw clamp with pressure plate

420V 0-10V out

0 to 10 volt dc isolated output signal

  • SKU ID: s1-420v-0004
  • Part No: II-420V-AG-8-000
  • Input Signal: 4-20mA
  • Output Signal: 0-10Vdc
  • Power Supply: Loop powered
  • Installation: DIN Rail TS35
  • Electrical Connections: Screw clamp with pressure plate

Related Documents

Specification data sheets

  • 420i pdf product data sheet
  • 420V pdf product data sheet

Request Product Price

  • Please complete this form to request a quote for Loop Powered 4-20mA to Current/Volts Isolator - 420i & 420V

  • Please enter info about your required product specification and type of application, plus any other requirements.

  • ⚠ Attention Required

    Please remove all web links from Product and Application Requirements text entry box above, to enable form submission.

    You will be able to provide any links related to your enquiry later on, by replying to the email confirmation once your submission has been processed.

    Thank you.



Primary Sidebar

Product Enquiry

Send us your enquiry for Loop Powered 4-20mA to Current/Volts Isolator – 420i & 420V to get assistance with this product type.

Email Your Enquiry

enquiries@sensorsone.com

© 2022 SensorsONE Ltd, all rights reserved

  • Home
  • Products
  • Tools
  • Legal
  • Contact