RN22 active barrier, power supply, analog signal doubler

Field of application

The 1- or 2-channel RN22 active barrier powers analog instrument loops and safety instrumented systems up to SIL 2 (SC 3). The intrinsically safe, HART® transparent interface establishes a reliable link between field devices and process control. It interfaces with 2-/4-wire devices in hazardous areas and provides a second galvanically isolated signal output acc. to NAMUR NE 175. This opens a second channel for the process optimization domain without affecting the traditional automation system.

• Single- or two-channel active barrier, power supply or signal doubler

• 0/4 to 20 mA analog signal transmission (NAMUR NE 43) and galvanic isolation

• Intrinsic safety for operation in hazardous areas (Zone 2)

• Bidirectional HART® communication (transparent)

• 2- and 4-wire capability for instruments in hazardous areas (Zones 0/20)

• Ambient temperature range: -40 … 60 °C (-40 … 140 °F)

Benefits

• Intrinsically safe interface device suited for use in safety instrumented systems up to SIL 2 (SC 3) in accordance with IEC 61508

• Quick and easy wiring with screw or push-in terminals or power supply via power rail T-connector

• Easy access to frontside HART® connection taps

• Compact housing: up to two channels on 12.5 mm (0.49 in) for efficient use of space in control cabinets

• Measuring principle

  Active barrier

• Measuring principle

  Active barrier

• Function

  1-channel
  2-channel
  Signal doubler

• Loop power supply

  17,5 V ±1 V bei 20 mA open circuit
  voltage: 24,5 V ±5 %

• Power Supply

  24 V DC

• Input

  0/4…20 mA / HART
  feeding/not feeding

• Output

  0/4…20 mA / HART
  active/passive

• Certificates

  ATEX II3G Ex tc IIIC Dc
  CSA C/US AIS, I/2/ABCD
  EAC [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex ec IIC Gc
  JPN [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex ec IIC Gc
  INMETRO [Ex ia Ga] IIC,[Ex ia Da] IIIC, Ex ec IIC Gc
  NEPSI [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex ec IIC Gc
  UK II3G Ex tc IIIC Dc
  UK II(1)G [Ex ia Ga] IIC, II(1)D [Ex ia Da] IIIC, II3G Ex ec IIC Gc
  ATEX IECEx II(1)G [Ex ia Ga] IIC, II(1)D [Ex ia Da] IIIC, II3G Ex ec IIC Gc
  UL C/US
  DNV

• SIL

  SIL 2 SC 3

• Operation

  HART