Emerson Rosemount 5900, Справочное руководство

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Reference Manual
300520EN, Rev AA
November 2009
Rosemount 5900 Series
www.rosemount-tg.com
Section 2 Overview
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
2.2 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2
2.3 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-3
2.4 Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-7
2.5 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . page 2-9
2.1 INTRODUCTION
The Rosemount 5900 is a two-wire radar level gauge for high accuracy
non-contact measurements. The gauge continously emits a radar signal with
varying frequency towards the product surface. This allows very accurate
level measurements by processing the different frequencies between the
emitted and received radar signals.
The Rosemount 5900 is an integral part of the flexible Rosemount Raptor
system. The advanced and robust design makes it suitable for a vast range of
applications. It is capable of high accuracy level measurements as well as
handling obstacles that may interfere with measurement signals.
Figure 2-1. System integration
The Rosemount 5900 delivers measurement data and status information to a
Rosemount 2410 tank hub via the intrinsically safe Tankbus.
Data from a group of tanks is buffered by a 2160 Field Communication Unit
(FCU), and is distributed via the Group Bus to a TankMaster PC, or a host
system, whenever the FCU receives a request for data.
TankMaster
Rosemount 2410 Tank Hub
Modem
FCU 2160
Relay outputs
Secondary bus
Primary Bus
Intrinsically
safe Tankbus
Rosemount 5900 Rosemount 2240
Rosemount 2230
Group Bus
Preliminary