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

TDR Circuitry

Digital Circuitry

Display

Keypad

Explosion-proof andWatertight feedthrough

Terminal Connection board

Electronic Nameplate

Universal High Frequency

Connector

Wiring Compartment

Electronic Compartment

Advantages

Compact and lightweightLoop-powered for ease of installationTop-mounted with with quick connect and disconnect featureErgonomic and functional dual-chamber enclosures rotate 360ºHART and AMS capable13 probes (coaxial, twin-rod, single rod)

Advantages

Challenging applications that include shifting and changing mediaHigh temperature & high pressure applicationsMenu driven user interface with simple straightforward set-up and configurationInternational hazardous location approvalsProven 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 EclipseCaustic or acidic media may present corrosion-related problems for the probeProbe may encounter bridging due to dirty or highly viscous mediaExcessive vortices or agitation that may damage the probeBoiling and/or flashing may occur

Where NOT to apply

Eclipse maximum operating temperatures, pressures or specifications are exceededMedia with dielectric < 1.4Tank heights greater than 50 feetHeadroom does not permit safe installation of a rigid probeInterface applications where upper and lower dielectric media are out of rangeTop medium is higher dielectric than lower medium (707 only)

Where to usePULSAR 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 housingPushbutton Calibration with a 3-pushbutton, 3 LED user interfaceLevel movement or “Level-simulation” required for calibration

Horizon Model 704

Horizon Model 704

Intermediate transmitter in a single-compartment housingOptional LCD and HART outputNo level movement required for configuration

Advantages

Stripped-down Eclipse versions for simple applications703 simplest version, very economical704 same display as EclipseCompact, lightweight and affordableLoop-powered for ease of installationBroad range of industry segments and applications

Advantages

Choice of plastic or aluminum single compartment enclosureCoaxial, twin-rod and single rod probes up to 16 feetGeneral 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 locations704: Hygiene-intensive industries where 3-A authorized probe, Tri-Clamp fiting and a plastic housing make easy CIP while eliminating an oxydation threatEither: Tanks, open channels, pits, sumps or wet wells up to 16 feet tallApplications within unit’s specifications

Where to exercise caution

Vessel or media are at or near the maximum capabilities of HorizonCaustic or acidic media may present corrosion-related problems for the probeProbe may encounter bridging due to dirty or highly viscous mediaExcessive vortices or agitation that may damage the probeBoiling 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 usePULSAR 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

400F (204C) 200F (93C) 400F (204C)

TFE Polypropylene 4” 6”

675psig (46.5bar) 750psig (51.7bar) 675psig (46.5bar)

Min. Dielectric 2.0 1.7

Advantages

Compact, lightweight and affordableLoop-powered for ease of installationNon-contact technology, top-mounted with quick connect/disconnectUnaffected by fumes and vapors above the process levelTolerates turbulence and light to medium density foam

Quick-Start procedures simplify set-up and start-upDual compartments for convenient wiring and displayChanging dielectrics or conductivity do not affect measurement accuracyAdvanced signal processing extracts true level from false reflectionsAvail. 4” & 6” metal horn and dielectric rod antennas (polypropylene and Teflon)

Advantages

Where to apply

Where measuring requirements exceed capabilities of Eclipse GWRWhere Pulsar is more cost effective due to the probe length of GWRVessels where there is insufficient headroom for a probe instrumentWhen user prefers non-contact devicesHighly 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 antennaVery low dielectric media combined with very long measurement rangesVessels containing low dielectric media which normally operate at very low levelTanks with internal obstacles, or where severe turbulence or foam existsVessels operating at or near the maximum recommended operating conditions

Where NOT to apply

Where the maximum operating specifications are exceededDielectrics below 1.7 for horn antennas or 2.0 for dielectric rodsAcids, corrosives or caustics incompatible with antennas or process seal/connectionsExtreme turbulence, excessive foam, vortices or rollover process conditionsExcessive product build-up on antennaStandpipes and stillwells

Where to useGWR instead

Excessive foam is present

Dielectrics below 1.7

Low dielectric media (1.7<<2.0) combined with very low product levels

Extremely short measuring ranges

Toperating > 400ºF

Poperating > 750 psig @ +70ºF

Where to useGWR 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!