Catalogue 2022

84

Highlights 2022

85

RN42 and RLN42 interfaces – components for signal processing Interface devices with wide-range power unit and ATEX approval for individual applications

Services System components Automation Optical analysis Temperature Liquid analysis Flow Pressure Moisture Digitalization Plant safety Level

• Universally usable thanks to wide-range power unit • Two-channel version saves space and money • Safe to use for Ex zone applications and applications up to SIL2 SC3

The RN42 barrier offers various possible applications. Since its input can be connected passively as well as actively, it can be used both as an active and a passive barrier. The device is designed as a single-channel version. The RN42 can be used very flexibly, meaning the output can be connected to passive as well as active PLC inputs. The device detects the type of output and adapts its function accordingly. HART signals are also transmitted by the RN42. Users have access via two lugs at the front without interrupting the HART signal. The RN42 can be used in SIL applications up to SIL2 SC3. The RLN42 NAMUR isolating switch repeater reliably transmits digital statuses from Ex zones to non-Ex zones. It is suitable for SIL applications up to SIL2 SC3. Its compact design accommodates two channels on a width of 12.5 mm. The function is easily configurable via DIP switches, with LEDs showing the switching statuses.

RN42

Benefits • Wide-range power unit – a single device for all applications • Compact design: 12.5 or 17.5 mm • Passive/active output (automatic detection with RN42) • ATEX approval • For SIL applications up to SIL2 SC3

Technical data • Wide-range power unit 20–253 V AC/DC • Transmitter power ≤16.7 V at 20 mA (RN42) • Ambient temperature -40°C to +60°C • Can be installed in Ex zone 2

More information available at: www.endress.com/rn42 www.endress.com/rln42

RLN42