RN221N

Supply isolator with auxiliary power for safe separation of 4...20 mA standard signal circuits

General Information
Input/Output
Mechanical Data
Certification/Approvals
Additional Information
Endress+Hauser
SKU: RN221N

Highlights

  • Input: 1 x analog4...20 mA
  • Output: 1 x analog4...20 mA
  • Output relay: 1 x NO contact
  • Dimensions: 22.5 x 110 x 112 mm
  • Bidirectional HART® transmission: Communication sockets HART® for sensor parameterization and evaluation of status information of a connected transmitter with HART® protocol

Fields of application

  • Galvanic isolation of 4...20 mA circuits
  • Elimination of ground loops
  • Power supply for 2-wire transmitters
  • Monitoring of SMART transmitters with early warning system
  • Intrinsically safe supply for sensor in Ex-area
  • Sensor monitoring with early warning system

Details

The RN221N supply isolator from Endress+Hauser supplies e.g. a transmitter, if necessary also in hazardous areas, and transmits the signal galvanically isolated. With the optionally available HART® monitoring, the status of the transmitter is monitored. If an error occurs, a relay switches on the RN221N. The relay must be actively reset. This makes it easy to locate faults that only occur for a short time.

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  • 30-day return policy
  • Official reseller
  • Expert engineering support
  • Free delivery in the EU

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RN221N
from
€132.00 plus VAT
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We find the right product for you
  • 30-day return policy
  • Official reseller
  • Expert engineering support
  • Free delivery in the EU
Product Details