Endress+Hauser RN221N Active Barrier with Optional HART Diagnosis

Overview

Wide range power supply, flexible power source
Compact side by side DIN rail housing
International Ex approvals, Germanischer Lloyd / marine approval
Bidirectional HART® transmission. Communication sockets for HART® sensor setting up. Evaluation of status information from connected transmitter with HART® protocol.
Primary or secondary master operating mode, automatic selection
Sensor monitoring with early-warning system
Manual or automatic reset of the relay contact

Endress+Hauser RN221N Technical Information
Endress+Hauser RN221N datasheet

Acquisition / Evaluation
Measuring Principle	Resistance Temperature Detector
Function	Active barrier with power supply for safe seperation of 4...20 mA current circuit
Certification	ATEX II(1)GD(Ex ia)IIC FM USA IS FM USA NI CSA IS CSA NI IECEx Ex ia TIIS Ex ia GOST Ex i GL ship approval SIL Hygenic WHG
Input	1 x analog 4...20 mA
Output	1 x analog 4...20 mA
Relay output	1 x no contact
Auxiliary power supply / Loop power supply	20...250 V DC/AC
Dimensions (wxhxd)	22.5 x 110 x 112 mm (0.89" x 4.33" x 4.41")
Operation	HART

Thermometer
Measuring Principle	Resistance Temperature Detector
Characteristic / Application	Active barrier with power supply for safe seperation of 4...20 mA current circuit.
Ex - approvals	ATEX Ex i FM USA IS FM USA NI CSA IS CSA NI IECEx Ex ia TIIS Ex ia NEPSI Ex ia
Certification	GOST Ex i Germanischer Lloyd / marine approval SIL Hygenic WHG