The RNO22 signal output isolating amplifier safely controls active components such as pneumatic converters, control valves or process displays. The intrinsically safe device transmits isolated 0/4...20 mA analog signals, supports bidirectional transparent HART® transmission mode and communicates digitally with intelligent actuators.
The interface module is compact and provides up to two galvanically isolated channels with line open-circuit and short-circuit monitoring, ensuring reliable operation of critical equipment.

Advantages
Safe and reliable control of active components in hazardous areas

Fast and convenient device wiring and commissioning: plug-in terminals and power supply installed via the DIN rail bus connector

Small, compact housing: optional dual-channel version with a width of only 12.5 mm (0.49 in), making efficient use of the space inside the control cabinet

Precise and reliable signal transmission

Monitors line open circuits and short circuits

Field of application
Single-channel or dual-channel signal output isolating amplifier

Reliable control of active components such as control valves and pneumatic converters

Isolated transmission of 0/4 ... 20 mA signals

Intrinsically safe certification [Ex ia], can be installed for use in Zone 2 explosion-protected areas

Can be used in safety instrumented systems up to functional safety level SIL 2 (SC 3) in accordance with IEC 61508

Bidirectional digital HART® communication

Ambient temperature range: –40...70 °C (–40...158 °F)

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Source:Endress+Hauserpublic information from the website