The RNO22 output isolating amplifier is used to safely control active components such as control valves, actuators, I/P converters or indicators. The intrinsically safe device separates and transmits analog 0/4 to 20 mA signals and offers bidirectional HART ® transparency for digital communication with smart actuators.

The compact interface device with up to two galvanically isolated channels enables open- and short-circuit monitoring for reliable operation of critical equipment.

• 1- or 2-channel output isolating amplifier
• Reliable control of active components such as control valves, current-to-pressure transducers
• Transmission and galvanic isolation of 0/4 to 20 mA signals
• Intrinsically safe [Ex-ia], installation in Ex Zone 2
• Suited for use in safety instrumented systems up to SIL 2 (SC 3) in accordance with IEC 61508
• Bidirectional transmission of digital HART® communication signals
• Ambient temperature range: –40 to 70 °C (–40 to 158 °F)

• Safe and reliable control of active components in hazardous areas
• Quick and easy wiring and commissioning: plug-in terminals, power supply via DIN rail bus connector
• Compact housing: up to 2 channels on 12.5 mm (0.49 in) for efficient use of space in control cabinets
• Accurate and reliable signal transmission
• Line break and short-circuit monitoring