RN42 active barrier, wide range power supply

Field of application

The active barrier is used for transmission and galvanic isolation of 4 to 20 mA/HART signals. The device has an active / passive current input to which a 2- or 4-wire transmitter can be connected directly. The output of the device can be operated actively or passively. The current signal is then available to the PLC / controller or for further instrumentation at pluggable screw or optional push-in terminals.

• 1-channel active barrier, wide-range power supply

• Transmission and galvanic isolation of analog 0/4 to 20 mA signals

• Optionally intrinsic safe [Ex-ia] signals from hazardous area

• Bidirectional transmission of HART® communication signals

• Feeding or not feeding input for 2- or 4-wire instruments 

• Active or passive signal output

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

Benefits

• Wide range power supply of 19.2 to 253 V _AC/DC

• Quick and easy wiring thanks to plug-in terminals

• Optional for safety-oriented applications up to SIL 2 (SC3) in accordance with IEC 61508

• Optional installation in Ex Zone 2

• Compact housing width with 17.5 mm (0.69 in) for efficient use of space

• Option for installation rotated by 180° (terminals for power supply at top or bottom)

• Measuring principle

  Active barrier

• Measuring principle

  Active barrier

• Function

  1-channel

• Loop power supply

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

• Power Supply

  24...230 V AC/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