GE MN-ValVue-v2-8-IOM Wartungshandbuch Seite 63

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Tri-Loop Configuration
Advanced Setup with ValVue
Tri-Loop Configuration
Figure 44 is a simplified schematic showing the SVI II and Tri-Loop and a control system
connection
The input channel from the control system must have an impedance of at least 250 Ohms or
else the HART signal becomes attenuated and the Tri-Loop won’t function properly. Also,
channel one must be enabled and set for Primary Variable with a range of 0-100%. You can
enable channel 2 and 3 even if you don’t connect them.
NOTE Consult the TRI-LOOP instruction manual for wring diagrams.
Masoneilan is not responsible for improperly wiring the
TRI-LOOP. This document simplifies the setup requirement of an
SVI II with a device such as a TRI-LOOP. A resistor might be
required on the positive leg of Channel 1 to limit the current to
the TRI-LOOP.
Figure 44 Tri-Loop Configuration
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