RN221N
Active barrier with optional HART® diagnosis

Active barrier with power supply for safe separation of 4...20 mA current circuits

RN221N

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Specs at a glance

Input

1 x analog 4...20 mA
Output

1 x analog 4...20 mA

See all specifications

Field of application

The active barrier RN221N supplies e.g. a transmitter with power, if required also in the Ex-area, and then transmits the galvanically isolated signal. With the optionally available HART® monitoring the status of the transmitter is monitored. If an error arises a relay at the RN221N sends an alarm. The relay has to be actively set back. Thus even just briefly occurring errors can be easily located.

Galvanic isolation of 4 to 20 mA current circuits
Removing large loop circuits
Powering 2 wire transmitters
Monitoring of SMART transmitters with early-warning system
Intrinsically safe sensor supply for Ex-area

Benefits

Wide range power supply, flexible power source
Compact side by side DIN rail housing
International Ex approvals; 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

Predecessor

RN221
NY9170
HAA420Z
NY9170

NY9170
NY9170
NY9170

Success stories

Prevent grain dust ignition in bulk tanks & silos

How temperature profiling increases plant safety and product quality in bulk tanks and silos for food storage.
Read the full story
Energieeffiziente Nahrungsmittelproduktion

Energiestudie bei Le Patron zeigt Einsparpotentiale auf
Read the full story
Sichere Druckluftversorgung

Endress+Hauser (Schweiz) AG unterstützt Kunden bei der Optimierung der Verfügbarkeit und Leistungsfähigkeit ihrer Druckluftanlagen.
Read the full story
Ziel erreicht - bei Wander AG

Die Firma Wander AG geht auch beim Abwasser auf Nummer Sicher. Kontinuierliche Abwasserkontrolle erhöht Sicherheit und Transparenz
Read the full story

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

	EN
03/11/2010
02/02/2006
30/09/2005

Language:	English
Version:	03/11/2010
File size:	797.3 KB
File name:	BA202ra3_1310.pdf

Language:	German
Version:	08/05/2006
File size:	757.8 KB
File name:	TI073rde.pdf

Language:	English
Version:	08/05/2006
File size:	702 KB
File name:	TI073ren.pdf

	EN
03/11/2010
02/02/2006
30/09/2005

	EN
08/05/2006
18/05/2004

	EN
08/05/2006
18/05/2004

	EN
22/11/2000

	EN
30/06/2016
01/02/2010
06/06/2005
03/12/2001

RN221NActive barrier with optional HART® diagnosis

Active barrier with power supply for safe separation of 4...20 mA current circuits

Specs at a glance

Input

Output

Field of application

Benefits

Predecessor

Success stories

Prevent grain dust ignition in bulk tanks & silos

Energieeffiziente Nahrungsmittelproduktion

Sichere Druckluftversorgung

Ziel erreicht - bei Wander AG

Measuring principle

Measuring principle

Function

Loop power supply

Auxiliary power supply / Loop power supply

Input

Output

Certificates

Operation

Measuring principle

Function

Certification

Input

Output

Relay output

Auxiliary power supply / Loop power supply

Dimensions (wxhxd)

Operation

Back

Betriebsanleitung /Operating Instructions RN221N HART Diagnose

Technische Information Speisetrenner RN221N

Technical information Active barrier RN221N

Betriebsanleitung /Operating Instructions RN221N HART Diagnose

Operating instructions RN221N

RN221N Brief Operating Instructions

RN221N ATEX: II (1)GD [Ex ia] IIC Safety Instructions

Active barrier

RN221N

Active barrier [Ex ia Ga] IIC Safety Instructions

RN221N

RN221N

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4 pin plug + ReadWin2000

4 pin plug + USB stick with FieldCare Device Setup

4 pin plug, w/o configuration software

4 pin plug+ReadWin2000+adapter M12

4 pin plug + adapter M12, TMR31/35

4 pin plug + adapter M12, TrustSens

Input

Output

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

Output

Output

Display

Power Supply

Input

Output

Output

Display

Power Supply

Input

Output

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

RN221N
Active barrier with optional HART® diagnosis