Start-Up & Operation 5 - 2 PN25080
TRIO-WIRL INSTRUCTION MANUAL
5.2.2 TRIO-WIRL VR/SR4000 Remote
The TRIO WIRL VR/SR (Figure 5-3) is based on the
VT/ST technology and includes all the options avail-
able in the VT/ST models. The converter is mounted
remotely from the flowmeter primary when it is installed
in a location difficult to access. This design also offers
advantages when the ambient conditions at the flow-
meter primary are extreme. The meter should be con-
nected using Figures 5-4 & 5-5 as guidelines. The
maximum distance between the converter and the flow-
meter primary is 33 ft. (10 m). A special cable is utilized
to interconnect the flowmeter primary and the con-
verter (this cable is permanently attached to the con-
verter).
.
After the installation has been completed, the cable
may be cut to the length required to reach the flowme-
ter primary. Because the signals between the flowme-
ter primary and converter are not amplified, all
connections must be made with care and the leads
positioned in the connection box so that they are not
affected by vibrations.
Power Supply/
Current Output
Terminals
Contact Output
Terminals
Ground
FIGURE 5-2 CONNECTION BOX TRIO-WIRL
FIGURE 5-3 TRIO-WIRL VR/SR
Conn. Terminals
Pt100
Cable Termination Details
To Converter
Conn. Terminals
Flowrate Sensor
FIGURE 5-4 CONNECTION BOX TRIO-WIRL
VR/SR FLOWMETER PRIMARY
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