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RN221N
Active barrier with optional HART® diagnosis

Active barrier RN221N ©Endress+Hauser
Active barrier RN221N ©Endress+Hauser

Active barrier with power supply for safe separation of 4...20 mA current circuits

The active barrier RN221N supplies e.g. a transmitter with power, if required also in the Ex-area, and then transmits the galvanically isolated signal. With the optionally available HART® monitoring the status of the transmitter is monitored. If an error arises a relay at the RN221N sends an alarm. The relay has to be actively set back. Thus even just briefly occurring errors can be easily located.

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Variabel

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    • Input

      1 x analog 4...20 mA

    • Output

      1 x analog 4...20 mA

    • Power Supply

      Not defined

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  • Fordele

    • Wide range power supply, flexible power source

    • Compact side by side DIN rail housing

    • International Ex approvals; marine approval

    • Bidirectional HART® transmission. Communication sockets for HART® sensor setting up. Evaluation of status information from...

  • Anvendelsesområde

    • Galvanic isolation of 4 to 20 mA current circuits

    • Removing large loop circuits

    • Powering 2 wire transmitters

    • Monitoring of SMART transmitters with early-warning system

    • Intrinsically safe sensor supply for Ex-area

Details

  • Measuring principle

    Active barrier

  • Measuring principle

    Power supply

  • Function

    Active barrier with power supply for safe seperation of 4...20 mA current circuit

  • Loop power supply

    20...250 V DC/AC

  • Power Supply

    Not defined

  • Auxiliary power supply / Loop power supply

    20...250 V DC/AC

  • Input

    1 x analog 4...20 mA

  • Output

    1 x analog 4...20 mA

  • Software functions

    Not defined

  • Certificates

    Non-hazardous area

    ATEX (Ex ia)

    FM AIS

    CSA (Ex ia)

    IECEx (Ex ia)

    NEPSI (Ex ia)

    JPN (Ex ia)

    Non-hazardous area + EAC marking

    EAC (Ex ia)

  • SIL

    Not defined

  • Operation

    HART

  • Measuring principle

    Power supply

  • Function

    Active barrier with power supply for safe seperation of 4...20 mA current circuit

  • Certification

    ATEX II(1)GD(Ex ia)IIC

    FM USA IS

    FM USA NI

    CSA IS

    CSA NI

    IECEx Ex ia

    TIIS Ex ia

    GOST Ex i

    Marine approval

    SIL

    Hygenic WHG

  • Input

    1 x analog 4...20 mA

  • Output

    1 x analog 4...20 mA

  • Relay output

    1 x no contact

  • Auxiliary power supply / Loop power supply

    20...250 V DC/AC

  • Dimensions (wxhxd)

    22.5 x 110 x 112 mm

    (0.89" x 4.33" x 4.41")

  • Operation

    HART

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