Specs at a glance
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Input
1 x analog 4...20 mA
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Output
1 x analog 4...20 mA
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
Fundamental selection
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Simple products
- Easy to select, install and operate
Technical excellence
Simplicity
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Loading alternative products
Predecessor
Success stories
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Technical Information (TI)
Technical information Active barrier RN221N
Active barrier with power supply for safe separation of 4 ... 20 mA current circuits
EN 08/05/200618/05/2004Language:
English
Version:
08/05/2006
File size:
702 KB
File name:
TI073ren.pdf
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Operating Instruction (BA)
Betriebsanleitung /Operating Instructions RN221N HART Diagnose
Speisetrenner RN221N mit Hilfsenergie zur sicheren Trennung von 4...20 mA Normsignalstromkreisen mit HART Diagnose Active barrierRN221N withpower supply for safe separation of 4...20 mA current circuits with HART diagnosis
EN 03/11/201002/02/200630/09/2005Language:
English
Version:
03/11/2010
File size:
797.3 KB
File name:
BA202ra3_1310.pdf
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Operating Instruction (BA)
Operating instructions RN221N
Operating instructions active barrier RN221N (VALID FROM 22.11.2000 to 02.12.2001)
EN 22/11/2000Language:
English
Version:
22/11/2000
File size:
1.1 MB
File name:
ba102ra6_1100.pdf
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Short Instruction (KA)
RN221N Brief Operating Instructions
Active barrier with power supply forsafe separation of 4...20 mA current circuits
EN 30/06/201601/02/201006/06/200503/12/2001Language:
English
Version:
30/06/2016
File size:
430 KB
File name:
KA00124RA3_1316.pdf
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Ex Safety Instruction (XA)
RN221N ATEX: II (1)GD [Ex ia] IIC Safety Instructions
Safety instructions for electrical apparatus certified for use in explosion-hazardous areas.
EN 20/04/201604/07/201220/06/200801/10/200401/09/2000Language:
English
Version:
20/04/2016
File size:
813.6 KB
File name:
XA00005RA3_1416.pdf
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Ex Safety Instruction (XA)
RN221N
[Ex ia Ga]IIC
EN 23/09/2020Language:
English
Version:
23/09/2020
File size:
422.2 KB
File name:
XA02242KEN_0120.pdf
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Ex Safety Instruction (XA)
Active barrier
RN221N JPN: [Ex ia] IIC
EN 24/09/2019Language:
English
Version:
24/09/2019
File size:
132.8 KB
File name:
XA01960KEN_0119.pdf
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Ex Safety Instruction (XA)
RN221N
FM: Control Drawing AIS, ANI 020200111
Language:
English
Version:
07/01/2005
File size:
1.4 MB
File name:
020200111.pdf
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Ex Safety Instruction (XA)
RN221N
CSA: Control Drawing AIS, ANI 020200112
Language:
English
Version:
07/01/2005
File size:
1.4 MB
File name:
020200112.pdf
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Ex Safety Instruction (XA)
Active barrier [Ex ia Ga] IIC Safety Instructions
Safety instructions RN221N EAC [Ex ia Ga] IIC
EN 31/10/201830/06/2016Language:
English
Version:
31/10/2018
File size:
122.7 KB
File name:
XA01451KEN_0218.pdf
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