RNO22 output amplifier

Field of application

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)

Benefits

• 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

• Measuring principle

  Active barrier

• Measuring principle

  Output isolating amplifier

• Function

  1-channel
  2-channel

• Power Supply

  24 V DC

• Input

  0/4…20 mA / HART
  passive

• Output

  0/4…20 mA / HART
  active

• Certificates

  ATEX IECEx II(1)G [Ex ia Ga] IIC, II(1) D [Ex ia Da] IIIC, II3G Ex ec IIC Gc
  DNV

• SIL

  SIL 2 SC 3

• Operation

  DIP switch, HART