Transcript Document

Loop-powered
RADAR transmitters
Eclipse is a two wire,
loop powered, 24vDC
level transmitter based
on Guided Wave Radar
and offered with a 2 line
x 8 character display
and/or HART
communications.
How Does It Work?


Pulses of high frequency
energy are sent down a
probe (wave guide) and
timing circuitry measures
the reflection of the
signal off the surface of
the process
The higher the dielectric,
the stronger the return
signal
Electronic
Nameplate
Terminal Connection
board
Explosion-proof and
Watertight feedthrough
Universal
High Frequency
Connector
Wiring Compartment
Electronic Compartment
Display
Keypad
Digital
Circuitry
TDR
Circuitry
Advantages
Compact and lightweight
Loop-powered for ease of installation
Top-mounted with with quick connect
and disconnect feature
Ergonomic and functional dual-chamber
enclosures rotate 360º
HART and AMS capable
13 probes (coaxial, twin-rod, single rod)
Advantages
Challenging applications that include shifting
and changing media
High temperature & high pressure
applications
Menu driven user interface with simple
straightforward set-up and configuration
International hazardous location approvals
Proven performance with more than 12000
units installed worldwide
Where to apply
Challenging applications (saturated steam,
100% full vessels or chambers, extremes in
temperature and pressure; dielectric media
as low as 1.4; shifting gravity and dielectric
media
Wide probe selection accomodates a broad
range of media – from solvents to viscous
Bunker C fuel oils and coating media such as
latex paints
Where to apply
Hazardous area service in Power,
Offshore/Onshore production, Refining,
Chemicals and Petrochemicals
Tanks and vessels up to 20 feet high (705)
and 50 feet high (708)
Interface measurement up to 12 feet (707)
Where to apply
Applications where traditional instruments
have not fulfilled user expectations for
reliability or performance
(i.e. DP or RF transmitters, Torque Tube
transmitters/controllers, Magnetostrictive
devices)
Where to exercise
caution
Vessel or media are at or near the maximum
capabilities of Eclipse
Caustic or acidic media may present
corrosion-related problems for the probe
Probe may encounter bridging due to dirty or
highly viscous media
Excessive vortices or agitation that may
damage the probe
Boiling and/or flashing may occur
Where NOT to apply
Eclipse maximum operating temperatures,
pressures or specifications are exceeded
Media with dielectric < 1.4
Tank heights greater than 50 feet
Headroom does not permit safe installation of a
rigid probe
Interface applications where upper and lower
dielectric media are out of range
Top medium is higher dielectric than lower
medium (707 only)
Where to use
PULSAR instead
Medium’s viscosity exceeds selected probe’s
capabilities
Diminished headroom only allows for use of
radar transmitter with small antenna
Long probes are difficult or unsafe to install
End-user prefers non-contact devices
Corrosion or viscosity conditions favor
specification of non-contact device
Horizon Model 703
Horizon Model 703
Cost effective blind transmitter
in a single-compartment
housing
Pushbutton Calibration with a
3-pushbutton, 3 LED user
interface
Level movement or “Levelsimulation” required for
calibration
Horizon Model 704
Horizon Model 704
Intermediate transmitter in
a single-compartment
housing
Optional LCD and HART
output
No level movement
required for configuration
Advantages
Stripped-down Eclipse versions for
simple applications
703 simplest version, very economical
704 same display as Eclipse
Compact, lightweight and affordable
Loop-powered for ease of installation
Broad range of industry segments and
applications
Advantages
Choice of plastic or aluminum single
compartment enclosure
Coaxial, twin-rod and single rod probes
up to 16 feet
General purpose areas in clean industry
applications where XP is not needed
(Valox housing versions)
Worldwide safety approvals
Where to apply
703: OEM, water-wastewater and general
non-hazardous locations
704: Hygiene-intensive industries where 3-A
authorized probe, Tri-Clamp fiting and a
plastic housing make easy CIP while
eliminating an oxydation threat
Either: Tanks, open channels, pits, sumps or
wet wells up to 16 feet tall
Applications within unit’s specifications
Where to exercise
caution
Vessel or media are at or near the maximum
capabilities of Horizon
Caustic or acidic media may present
corrosion-related problems for the probe
Probe may encounter bridging due to dirty or
highly viscous media
Excessive vortices or agitation that may
damage the probe
Boiling and/or flashing may occur
Where NOT to apply
Maximum operating temperatures,
pressures or specifications are
exceeded
Media with dielectric < 1.7
Tank heights greater than 16 feet
Headroom does not permit safe
installation of a rigid probe
Where to use
PULSAR instead
Medium’s viscosity exceeds selected probe’s
capabilities
Diminished headroom only allows for use of
radar transmitter with small antenna
Long probes are difficult or unsafe to install
End-user prefers non-contact devices
Corrosion or viscosity conditions favor
specification of non-contact device
Enclosure
Module
Launcher
Electronics
Antenna
Offering
TFE
Min. Dielectric
Polypropylene
2.0
675psig (46.5bar)
400F (204C)
4”
6”
1.7
750psig (51.7bar)
200F (93C)
675psig (46.5bar)
400F (204C)
Advantages
Compact, lightweight and affordable
Loop-powered for ease of installation
Non-contact technology, top-mounted
with quick connect/disconnect
Unaffected by fumes and vapors above
the process level
Tolerates turbulence and light to
medium density foam
Advantages
Quick-Start procedures simplify set-up and
start-up
Dual compartments for convenient wiring and
display
Changing dielectrics or conductivity do not
affect measurement accuracy
Advanced signal processing extracts true
level from false reflections
Avail. 4” & 6” metal horn and dielectric rod
antennas (polypropylene and Teflon)
Where to apply
Where measuring requirements exceed
capabilities of Eclipse GWR
Where Pulsar is more cost effective due to
the probe length of GWR
Vessels where there is insufficient headroom
for a probe instrument
When user prefers non-contact devices
Highly viscous, coating media which could
cause bridging of GWR probes
Where to exercise
cautions
Vessel contents may reach 100% full point, or
within 2” of the antenna
Very low dielectric media combined with very
long measurement ranges
Vessels containing low dielectric media which
normally operate at very low level
Tanks with internal obstacles, or where
severe turbulence or foam exists
Vessels operating at or near the maximum
recommended operating conditions
Where NOT to apply
Where the maximum operating specifications
are exceeded
Dielectrics below 1.7 for horn antennas or 2.0
for dielectric rods
Acids, corrosives or caustics incompatible
with antennas or process seal/connections
Extreme turbulence, excessive foam, vortices
or rollover process conditions
Excessive product build-up on antenna
Standpipes and stillwells
Where to use
GWR instead
Excessive foam is present
Dielectrics below 1.7
Low dielectric media (1.7<e<2.0)
combined with very low product levels
Extremely short measuring ranges
Toperating > 400ºF
Poperating > 750 psig @ +70ºF
Where to use
GWR instead
Saturated steam applications
(deaerators or steam drums)
Overfill conditions
(applications require 100% of total capacity)
Sanitary applications requiring 3-A
Authorization
The Most Potent Combination in the
Level Measurement Industry!