705-5100-121 Datasheet, PDF (7/56 Pages) Magnetrol International, Inc. – GuidedWave Radar Level Transmitter

1.5 Link Active Scheduler (LAS)
The default operating class of the Enhanced Eclipse Model 705
with FOUNDATION fieldbus^™ is a basic device. However, it is
capable of being a Link Active Scheduler (LAS). The LAS
controls all communication on a FOUNDATION fieldbus^™
segment. It maintains the “Live List” of all devices on a
segment, coordinates both the cyclic and acyclic timing and,
at any given time, controls which device publishes data via
Compel data (CD) and Pass Token (PT).
The primary LAS is usually maintained in the host system,
but in the event of a failure, all associated control can be
transferred to a backup LAS in a field device such as the
Enhanced Eclipse Model 705. The operating class can be
changed from basic to LAS using a FOUNDATION fieldbus^™
configuration tool.
NOTE: The Enhanced Eclipse Model 705 is shipped from the factory
with Device Class set to Basic.
2.0 QuickStart Installation
The QuickStart Installation procedures provide the key
steps for mounting, wiring, and configuring the Eclipse
level transmitter. These procedures are intended for experi-
enced installers of electronic level measurement instruments.
See Complete Installation, Section 3.0, for detailed installa-
tion instructions.
WARNING: The Model 7xD, 7xR or 7xT overfill probes should be
used for Safety Shutdown/Overfill applications. All
other Guided Wave Radar probes should be installed
so the maximum overfill level is a minimum of
6" (150 mm) below the process connection. This may
include utilizing a nozzle or spool piece to raise the
probe. Consult factory to ensure proper installation.
2.1 Getting Started
Before beginning the QuickStart Installation procedures,
have the proper equipment, tools, and information available.
2.1.1 Equipment and Tools
• Open-end wrenches or adjustable wrench to fit the process
connection size and type. Coaxial probe 1¹â„2"
(38 mm), twin rod probe 1⁷⁄8" (47 mm), transmitter
1¹â„2" (38 mm). A torque wrench is highly desirable.
• Flat-blade screwdriver
• Cable cutter and ³â„32" (2.5 mm) hex wrench
(Flexible probes only)
• Fieldbus compatible power supply with proper termination
57-640 Eclipse Guided Wave Radar Transmitter - FOUNDATION fieldbus^™
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