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Emerson 308014EN Manual de usuario Pagina 129

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11-17
Rosemount Tank Radar REX
Chapter 11 Electrical Installation of the
Installation Manual
308014EN, Edition 4
May 2013
11.5.7 Analog 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.
Figure 11-9. Connection of analog output.
X11_AnalogOut.eps
ACTIVE
PASSIVE
+
-
+
-
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