Description

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.

Measurement - Equipment & Instruments

Product features

Measuring Principle Power supply
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
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

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