Installation Manual

308014EN, Edition 4

Rosemount Tank Radar REX

May 2013

Chapter 11 Electrical Installation of the

 

 

11.5.7Analog Output

The REX transmitter can be equipped with one 4-20 mA analog output. The output can be set to either Passive or Active mode. The output mode is controlled by jumper settings on the FCC card (see REX Service Manual for more information).

The Analog Output replaces the second relay and is connected as illustrated below. Note the different polarity for the Active and Passive modes!

A shielded cable is recommended. Connect the shield at one end only to avoid ground loops with circulating currents.

PASSIVE

-

+

ACTIVE

+

-

X11_AnalogOut.eps

Figure 11-9. Connection of analog output.

11-17

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Emerson Edition 4, 308014EN installation manual 11-17, Analog Output
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