Back to top

Eclipse® 705 guided wave radar transmitter

The Enhanced Eclipse® Model 705 is a 24 VDC loop-powered transmitter based upon the revolutionary guided wave radar (GWR) technology. This single transmitter can be used with all probe types and offers enhanced reliability, as demonstrated by a Safe Failure Fraction of 91%.

The ECLIPSE guided wave radar transmitter is designed to provide measurement performance well beyond that of many traditional technologies. The innovative, patented enclosure is a first in the industry orienting both wiring and electronics compartments in the same plane; and, angled to maximize ease of wiring, configuration and data display.

Eclipse 705 head
Technology

Guided wave radar

Micropower impulse radar (MIR) combines time domain reflectometry (TDR), equivalent time sampling (ETS), and modern low power circuitry. This synthesis of technologies creates a high-speed Guided Wave Radar (GWR) transmitter. The electromagnetic pulses are propagated via a waveguide that focuses the energy and yields a system many times more efficient than Non-Contact Radar.

Guided wave radar

Features

  • Low dielectric measurement capability (εr ≥ 1.4)
  • Volumetric output
  • Quick connect / disconnect probe coupling
  • Operates in visible vapors and ignores most foams
  • IS, XP, and Non-Incendive approvals
  • Ignores coating buildup

Options

  • Foundation fieldbus™ or Profibus PA
  • Display/Keypad
  • Local Remote Mounting
  • Interface Measurement

Probes

Guided Wave Radar Probes

Choosing the proper guided wave radar (GWR) probe is the most important decision in the application process. The probe configuration establishes fundamental performance characteristics. Coaxial, twin element (rod or cable) and single element (rod or cable) are the three basic configurations used today, each with specific strengths and weaknesses.

Single element GWR probes act quite differently from coaxial and twin element designs. The pulses of energy develop between the center rod and the mounting nut or flange; the pulse propagates down the rod as it references its ground at the top of the tank. The efficiency of the pulse "launch" is directly related to how much metallic surface exists around it at the top of the vessel.

Signal transmission can be significantly improved by placing a single rod inside of a bridle or chamber.

Probes
Probes

Operating principle

The ECLIPSE guided wave radar transmitter is based upon the technology of TDR (time domain reflectometry). TDR utilizes pulses of electromagnetic energy transmitted down a wave guide (probe). When a pulse reaches a liquid surface that has a higher dielectric constant than the air (εr = 1) in which it is traveling, a portion of the pulse is reflected. The transit time of the pulse is then measured via high speed timing circuitry that provides an accurate measure of the liquid (or solids) level. Discover more guide wave radar products.

Guided wave radar
Guided wave radar

Approvals

ATEX Ex d, Ex ia, Ex n, Ex t
CCOE Ex d, Ex ia
CSA XP, IS, NI
FM XP, IS, NI
EAC (GOST) Ex d, Ex ia, Metrology
IEC Ex d, Ex ia
Inmetro Ex d, Ex ia,
Korea Ex d, Ex ia,
NEPSI CPA
SIL SIL 1/2 (1oo1)
Marine Lloyd's Register of Shipping (LRS)
Steam Drum Lloyds EN 12952-11 (water tube boilers)
Lloyds EN 12953-9 (shell boilers)
TÜV / DIBt WHG § 63, overfill prevention

Other approvals are available. Consult factory for more details.

Downloads

Approvals & certificates

ATEX Ex d certificate Eclipse 705
ATEX Ex i certificate Eclipse 705
ATEX Ex n certificate Eclipse 705
Canadian certificate Eclipse® 705 - XP, IS, NI
FM certificate Eclipse® 705 - XP, IS, nA, DIP, NI
FMEDA Report Eclipse 705
IECEx d certificate Eclipse 705
IECEx I certificate Eclipse 705
SIL 3 Certificate Eclipse 705
SIL 3 exida Report Eclipse 705
WHG approval Eclipse 705

Instruction manuals

Eclipse® Enhanced 705 Foundation Fieldbus
The Enhanced Eclipse® Model 705 Transmitter is a loop-powered,24 VDC liquid-level transmitter based on the revolutionary Guided...
Eclipse® Enhanced 705 HART I&O Manual
The Enhanced Eclipse® Model 705 is a loop-powered, 24 VDC, level transmitter based upon the revolutionary Guided Wave Radar (...
Eclipse® Enhanced 705 Profibus
The Enhanced Eclipse® Model 705 is a loop-powered, 24 VDC, level transmitter based upon the revolutionary Guided Wave Radar (...
Eclipse® Enhanced 705 SIL 3 Safety Manual
The Enhanced Eclipse® Model 705 is a loop-powered, 24 VDC, level transmitter based upon the revolutionary Guided Wave Radar (...
Eclipse® Enhanced 705 SIL Safety Manual
The Enhanced Eclipse® Model 705 is a loop-powered, 24 VDC, level transmitter based upon the revolutionary Guided Wave Radar (...

Product catalogs

Eclipse® Enhanced 705 - Heavy Duty
The Enhanced Eclipse® Model 705 Transmitter is a loop powered, 24 VDC liquid-level transmitter based on the revolutionary...
Eclipse® model 705 - Industrial
The Enhanced Eclipse® Model 705 Transmitter is a looppowered, 24 VDC liquid-level transmitter based on the revolutionary Guided...
External Chamber - Sealed or Flanged Top
The Magnetrol® external chamber is a self-contained cage designed for use with our top mounting level transmitters or switches.