RN22 active barrier | Endress Hauser

Specs at a glance

Input: 0/4…20 mA / HART
feeding/not feeding
Output: 0/4…20 mA / HART
active/passive
Power Supply: 24 V DC

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Field of application

Endress Hauser’s

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)