Login Solutions Industries Media News and press releases RN Series: Reliable signal processing 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. Benefits 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. ©Endress+Hauser The RN Series interface devices for safe operations in hazardous areas Related offering F L E X PRODUCTS RNF22 power feed-in and error message module Safely power and monitor system interfaces on the DIN rail bus RNF22 power and error message interface module from €109.00 F L E X PRODUCTS RN22 active barrier, power supply, analog signal doubler Intrinsically safe 24 VDC compact interface module for use in hazardous areas, SIL systems RN22 active barrier, power supply, signal doubler from €189.00 Offering Products Solutions Services Industries Company Contact Information Downloads Sustainability Get technical support Equipment returns Contact us Endress+Hauser Oy Finland Tel. +358 20 1103 600 info.fi.sc@endress.com firstname.lastname@endress.com Copyright © Endress+Hauser Group Services AG Imprint Terms of use Data Protection Legal & General Terms and Conditions We use cookies to store information on your device which helps us to customize and improve your interactions with us. More on cookies can be found in the privacy policy. Accept and confirm all Adapt settings