Overview
Approval: Non-explosive area
Electrical connection: Screw terminals
Channel 2 channel
Approval: Non-explosive area
Electrical connection: Screw terminals
Channel 2 channel
The RN22 is a 1- or 2-channel active barrier, power supply or signal doubler for safe isolation of 4 to 20 mA standard signal circuits. It supplies analog measuring loops and safety-related systems up to SIL 2, SC 3 (according to IEC 61508). The transparent HART® interface device provides a reliable signal connection between field devices and the HER process control system. It provides interfaces to 2- or 4-wire devices in hazardous areas of zone 2 and provides a second, electrically isolated signal output according to NAMUR NE 175. This opens up a second channel for the area of process optimization without affecting the traditional automation system.
Active barrier for secure isolation of standard signal circuits
Compact casing
Quick and easy wiring
Endress+Hauser, RN22-AA2A, RN22, control systems, automation, temperature transducer