Titan Logix Rack Control Module User Manual

TD80™ Level Gauging and Overfill Prevention System Product Manual
Page 6 TD80 Introduction/ Rev. 2, August 4, 2015
TPM 001
1.3 TD80 System Introduction and Description
1.3.1 About the TD80 System
The TD80 Level Transmitter is the heart of the TD80 level measurement
system. The TD80 transmitter uses Guided Wave RADAR (GWR) to
measure liquid level in a tank. It does not use any moving parts for level
measurement.
Guided Wave RADAR is a contacting level measurement method that uses a
probe as a wave guide to channel the radio frequency energy to the liquid
being measured. The probe provides an efficient path for the transmitted
energy and pulse reflections from the surface of the liquid.
The TD80 transmitter measures the time delay between transmitted and
reflected pulses to calculate distance to the material’s surface. This distance
is then used to determine level of the liquid in the tank.
The calculated level is converted into common volume units and is sent to a
Display such as the Finch 5332 Display. The display is also part of an
optional secondary overfill prevention system. TD80 generated alarms
provide the approaching overfill information to halt loading at industry
standard optic controlled loading racks, on-board loading pumps or valves.
The TD80 system consists of a TD80 transmitter, dual rod or coaxial probe
and a Finch Display. Optional components such as the Finch Relay Module,
horns and lights are installed as required.
1.3.2 TD80 System Components
TD80 Transmitter
The TD80 transmitter generates and processes the GWR signals to
determine liquid level in a tank. The TD80 is mounted on the tank top and
connected to the probe, is weatherproof and rated for use in hazardous
locations where explosive fumes may be present. TD80s are available in two
versions, dual rod or coaxial probe for compatibility with a wide range of
liquids.
Probe
The probe guides the transmitted pulse and reflection from the surface of the
liquid. Probes are available in dual rod or coaxial versions and require a
matching transmitter type. The probe is mounted on the tank top and is
connected to the bottom of the transmitter. Dual rod probes are designed for
viscous liquids. Coaxial probes are used mostly for tanks containing products
like aviation fuel.
Finch 5332 Display
Finch Displays are available in weather-proof external versions, the Finch
5332E and a smaller internal version, the Finch 5332. Both provide bright
LED numeric display of volume information, alarms and system error codes
from the TD80 transmitter. Various alarm and error conditions are detected
by the transmitter and display. These alarm states control three internal
relays for alarm annunciation, overfill and low level prevention.

Titan Logix Rack Control Module Specifications

General

Brand	Titan Logix
Model	Rack Control Module
Category	Measuring Instruments
Language	English