Active barrier for secure isolation of standard signal circuits
Compact casing
Quick and easy wiring
Intrinsic safety for operation in hazardous areas (zone 2)
For safety-related applications up to SIL 2 (SC 3) according to IEC61508 (optional)
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 safely 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 offers an interface to 2 or 4-wire devices in hazardous areas of zone 2 and provides a second, galvanically isolated signal output according to NAMUR NE 175. This opens a second channel for process optimization without affecting the traditional automation system.
Endress+Hauser, RN22-8L2BPA, RN22, control systems, automation, temperature transducer
