Solartron Mobrey MRL800, Installation & Maintenance Manual

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Page 7
IP2028/IM
1.0 Introduction
The Radar Level Transmitter uses an FMCW microwave signal to measure the level
of the process material. The Radar Level Transmitter provides superior
performance to pulsed measurement systems, particularly in hostile
environments, because the continuous microwave signal is unaffected by mist,
surface agitation, temperature changes, or pressure changes.
The standard menu-driven user interface, with built–in help screens and the
optional Windows-based Setup Software are designed to make the Radar Level
Transmitter easy to set up and operate. Full programming details are given in
Technical Handbook IP2028/OM.
1.1 Description
The Radar Level Transmitter consists of an antenna and a factory sealed control
electronics casette. The microwave signal is launched from the RF circuit in the
electronics into the antenna. The antenna serves to focus the transmitted signal
as well as to receive the reflected echo. Both rod and horn style antennae are
available.
Antennae
Verification of chemical compatibility with the exposed antenna materials is
ultimately the responsiblity of the customer.
The standard antenna configuration for the Radar Level Transmitter consists of a
dielectric-filled, 316 stainless steel waveguide with a dielectric rod antenna. The
dielectric rod antenna is PTFE.
The dielectric rod antenna is fitted with either a 1.5” threaded mounting nipple,
welded to the waveguide, or with a welded flange. Waveguides are available in
lengths of 160mm, 238mm or 391mm where the length refers to the portion of
the waveguide that extends below the mounting nipple or the flange. For
optimum performance, the end of the waveguide or the horn should protrude a
minimum of 5mm into the vessel.
The Radar Level Transmitter is also available in options with a horn style antenna.