Specs at a glance
Input: NAMUR
blocking: < 1,2 mA
conducting: > 2,1 mA
Output: relay contact
Power Supply: 24 V DC
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Field of application
Endress Hauser’s
The RLN22 is a compact 1- or 2-channel, 24 VDC isolating amplifier with relay signal output. It is designed to safely operate e.g. proximity sensors or point level switches such as the Liquiphant FTL51B (NAMUR) as per IEC 60947-5-6.
The DC interface monitors line faults such as breaks or short-circuits of sensors or mechanical switching contacts. The device is suited for use in hazardous areas and safety instrumented systems up to SIL 2 in accordance with IEC 61508.
• Isolating amplifier for the transmission of binary switching signals
• Input for proximity sensors, open contacts or contacts with resistive coupling elements
• Galvanic isolation (3-way)
• Line fault monitoring of input circuits or mechanical switching contacts
• Group error message via DIN rail bus connector
• Output-side relay contacts, direction of action (operating or quiescent current behavior) via DIP switch selection
• Ambient temperature range: –40 to 60 °C (–40 to 140 °F)
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