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RLN22 isolating amplifier

RLN22 1- or 2-channel, 24 V DC, isolating amplifier with relay signal output for systems up to SIL 2 ©Endress+Hauser

RLN22 isolating amplifier for safe and reliable switching operations

The RN Series interface offering including the RLN22 isolating amplifier ©Endress+Hauser

The RN Series interface devices including the RLN22 isolating amplifier

RN Series interfaces installed in a control cabinet ©Endress+Hauser

The RN Series interface modules with RLN22 isolating amplifier being commissioned

Safe and reliable switching operations in critical systems

The RLN22 is a compact 1- or 2-channel, 24 V DC isolating amplifier with relay signal output. It is designed to safely operate e.g. proximity sensors or point level switches such as Liquiphant FTL51B (NAMUR) as per IEC 60947-5-6.
The interface module monitors line faults such as breaks or short-circuits of sensors or mechanical switching contacts. The device is suited for use in hazardous areas and safety instrumented systems up to SIL 2 in accordance with IEC 61508.

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  • Specs at a glance

    • Input

      NAMUR
      blocking: < 1,2 mA
      conducting: > 2,1 mA

    • Output

      relay contact

    • Power Supply

      24 V DC

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  • Benefits

    • Safe and reliable switching operations: trust your critical applications

    • Compact housing: up to 2 channels on 12.5 mm (0.49 in) for efficient use of space in control cabinets

    • Installation in hazardous areas; Ex approval for Ex zone 2

    • Up to SIL 2 in...

  • Field of application

    • Isolating amplifier for the transmission of binary switching signals

    • Input for proximity sensors, open contacts or contacts with resistive coupling elements

    • Galvanic isolation (3-way)

    • Line fault monitoring of input circuits or mechanical switching contacts

    • Group error message via DIN rail bus connector

    • Output-side relay contacts...

Features and specifications

Back

Details

  • Measuring principle

    Active barrier

  • Measuring principle

    NAMUR isolating amplifier

  • Function

    1-channel, changeover contact

    2-channel, normally open contact

  • Loop power supply

    8 V DC

  • Power Supply

    24 V DC

  • Auxiliary power supply / Loop power supply

    8 V DC

  • Input

    NAMUR

    blocking: < 1,2 mA

    conducting: > 2,1 mA

  • Output

    relay contact

  • Certificates

    ATEX

    IECEx

    DNV

  • SIL

    SIL 2

  • Operation

    DIP switch

Documents / Manuals / Software

Accessories / Spare parts

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