Specs at a glance
Input: 0/4…20 mA / HART
passive
Output: 0/4…20 mA / HART
active
Power Supply: 24 V DC
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Field of application
Endress Hauser’s
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)
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