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RN Series: Reliable signal processing and conditioning

New interface components for reliable power supply, switching and signal doubling in safety systems

The RN Series interface modules power the foundation of measurement instrument loops and safety instrumented systems built on the widely used analog process control infrastructure. The intrinsically safe signal processing and conditioning devices (up to SIL 2 (SC 3) in accordance with IEC 61508) ensure reliable power supply and safe operations in hazardous areas, establishing a trusted signal link between field instruments and the process control level.

优势

  • Intrinsically safe signal processing and conditioning devices certified up to SIL 2 (SC 3)

  • Smart integrated safety features such as NAMUR signal conversion and line fault monitoring

  • Compatible with multi-platform DIN rail bus connector system, ensures fast and easy commissioning and interoperability with compatible interfaces

  • Tried and tested to seamlessly complement Endress+Hauser 2- and 4-wire (4 to 20 mA) instruments

  • Signal doubling safely opens a second channel for the process optimization domain without affecting the traditional automation system (in accordance with NAMUR NE 175)

  • Compact housings for efficient use of space in control cabinets

  • Easy selection, supply, installation, commissioning, troubleshooting and service

Smart power

Smart functions such as NAMUR signal conversion, line fault monitoring, galvanic signal isolation, signal doubling, output signal amplification with bidirectional HART transparency give operators control and flexibility in systems of any scale, protecting assets and safeguarding data signal integrity in the process.

The RN Series at a glance

  • RN22: (RN42*): Active/passive barrier, signal doubler

  • RLN22: (RLN42*): NAMUR isolating amplifier

  • RNO22: Output isolating amplifier

  • RNB22: System power supply (single or redundant)

  • RNF22: Feed-in & error message module

* variant for wide range power supply (24-230 V AC/DC), available in Q4 2021

Typical application scenarios

2- and 4-wire (4 to 20 mA) instruments (e.g. Cerabar PMP71, Proline 200/300, ModuLine TM131, …)

  • RN22 active barrier, sensor supply with HART transparency

Data managers (e.g. Memograph M RSG45)

  • RN22 signal doubler

Point level switches (e.g. Liquiphant FTL51)

  • RLN22 or RLN42 NAMUR isolating amplifier

Active components (e.g. control valves, actuators)

  • RNO22 isolating output amplifier

RNB22 230 V/110 VAC to 24 VDC system power supply

  • RNF22 Feed-in & error message module, redundant power supply

Seamless system integration

All RN Series interface modules perfectly integrate with Endress+Hauser instruments, and work equally seamlessly with instruments from other vendors. The compact, space-saving housings with up to two channels on 12.5 mm are plug-and-play ready for standard DIN rails and control cabinets.

Independent of the industry, our offering promotes simplicity every step of the way: from easy selection and supply, to installation, commissioning, troubleshooting and service at all stages of the life cycle.

RN Series interface components ©Endress+Hauser

The RN Series interface devices for safe operations in hazardous areas

RN Series interface modules in a control cabinet ©Endress+Hauser

RN Series interface modules power the foundation of measurement instrument loops

RN22 active isolated barrier or signal doubler, HART-transparent ©Endress+Hauser

RN22 active barrier or signal doubler, HART-transparent

RNO22 output isolating amplifier ©Endress+Hauser

RNO22 output isolating amplifier

RNF22 power feed-in and error message module ©Endress+Hauser

RNF22 power feed-in and error message module

RNB22 230V/110V AC to 24V DC system power supply ©Endress+Hauser

RNB22 230V/110V AC to 24V DC system power supply

RLN22 isolating amplifier with relay signal output for safe and reliable operations ©Endress+Hauser

RLN22 isolating amplifier for safe and reliable switching operations

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