Catalogue 2022

82

Highlights 2022

83

RNx2x DIN rail interfaces – system components for flexible use Systems with a central power supply and ATEX approval

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

• Low wiring requirements thanks to a central power supply • Save time and costs with a universally usable system with five different functional components • Reliable thanks to the option for a redundant power supply

The RN22 signal barrier offers a variety of different appli cations. Since its signal input can be connected passively as well as actively, it can be used both as an active and a passive barrier. The device is available in a single-channel or two-channel version. In the two-channel version, the device can also be used as a signal doubler. The RN22 signal barrier can be used very flexibly, mean ing the output can be connected to passive as well as active PLC inputs. The device detects the type of output and behaves accordingly. HART signals are also transmitted by the RN22. Users have access via two lugs at the analog input without interrupting the HART signal. RN22 can be used in SIL applications up to SIL2 SC3. The RLN22 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 an overall width of 12.5 mm. The device function is easily configurable via DIP switches, with LEDs showing the switching statuses. With the RNO22 output isolating amplifier, valves or displays can be controlled. The device is also suitable for use in Ex zones. The signal is detected via the passive input and actively forwarded to the valve or display. An intrinsi cally safe variant is also available as an option. Its compact design accommodates one or two channels on 12.5 mm. The RNF22 infeed and alarm module is designed to supply the DIN rail system with power when a 24 V power source is available in the control cabinet. It monitors the power, can switch between redundant power supplies and issues an alarm in the event of a fault.

RNx2x

The RNB22 power supply can supply power to the system when there is no 24 V DC source in the control cabinet. A RNB22 can supply power for up to 40 modules. A redun dant power supply can be set up with two devices.

Benefits • One system with five functions • Compact design • Single- or two-channel devices • Central supply via the DIN rail • Active/passive output (RN22) • HART communication without opening the current loop (RN22)

Technical data • Power supply: 24 V DC • Overall width: 12.5 mm to 18.5 mm • Functions: active barrier, passive barrier, signal doubler, NAMUR isolating switch repeater, output isolating amplifier • Transmitter supply voltage: ≥ 16.5 V at 20 MA (RN22) • Ambient temperature: -40°C to +60°C • Degree of protection: IP20

More information available at: www.endress.com/rn22 www.endress.com/rln22 www.endress.com/rno22 www.endress.com/rnf22 www.endress.com/rnb22