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Genesis™ Models ED1 & ED2 Multiphase Detectors

The Genesis™ Models ED1 & ED2 detectors are Time Domain Reflectometry (TDR)-based, 24 VDC level detectors designed to accurately measure the various layers in interface level measurement applications. Encompassing a number of significant engineering accomplishments, these leading-edge level detectors are designed to provide measurement performance well beyond that of many of the more traditional technologies.

Genesis models are designed to measure multiple phases in applications with thick and dynamic emulsion layers:

  • Vapor phase (based on tank dimensions)
  • Total level (e.g., hydrocarbon liquid)
  • Top of emulsion layer
  • Bottom of emulsion layer (e.g., water level)
  • Sediment
Genesis Models ED1 - ED2 Multiphase Detectors

Genesis™ Multiphase Detector

TDR (Time Domain Reflectometry) uses pulses of electromagnetic energy to measure distances or levels. When a pulse reaches a dielectric discontinuity (created by the surface of a process medium), part of the energy is reflected. The larger the dielectric discontinuity, the larger the amplitude of the reflection.

Genesis Multiphase Detector - Technology


  • 24 VDC interface detector with four (4) 4-20mA outputs for convenient control of top level, top of emulsion, water level, and sediment
  • Concurrent Top-Down and Bottom-Up signal generation
  • Changing media characteristics have no effect on level measurement
  • Calibration or moving of levels in the vessel is not required
  • 4-button keypad and graphic LCD display allow for viewing of configuration parameters and performance curves
  • Proactive diagnostics for scheduling maintenance and mitigating unplanned shutdowns
  • No moving parts in the process, reducing measurement errors and downtime
  • Detects four levels with one top-mounted process connection
  • Probe designs are available up to +400F / 1000psi (+200C / 70 bar)
  • Proprietary and innovative software algorithms for interpreting signals


  • Electronics can be remote mounted up to 100 feet (30 meters) away from the probe
  • Offered with Class 1 Div 1 and Class 1 Div 2 approvals


E N L A R G E D  C O A X I A L
The standard probe offering for the Genesis™ Multiphase Detector is an enlarged diameter probe that can be generally used for most clean applications.

With a PFA coated active center rod surrounded by four(4) reference rods, the 5-conductor Pentarod probe is an alternative probe offering for the Genesis™ Multiphase Detector. Although this probe still yields excellent performance, its open design makes it less susceptible to buildup and bridging.

Operating Principle

What makes the Genesis™ Models ED1 & ED2 Multiphase Detectors unique is the fact that, in addition to sending high frequency energy down the probe in the classic sense to detect the upper level, it is also sending energy up the probe to detect the various other levels that may be present. (Top of emulsion layer, water level, and sediment). This combination of "Top-Down" and "Bottom-Up" measurement, along with very special software algorithms, makes emulsion layer (also known as "rag" layer) detection possible.


ATEX Ex d, Ex e
IEC Ex d, Ex e

Other approvals are available. Consult factory for more details.


Approvals & certificates

Genesis™ - ATEX Certificate
Genesis™ - ATEX Certificate
Genesis™ - Ex Certificate UK
Genesis™ - Ex Certificate UK
Genesis™ - FM Certificate Canada
Genesis™ - FM Certificate Canada
Genesis™ - FM Certificate US
Genesis™ - FM Certificate US
Genesis™ - IECEx certificate
Genesis™ - IECEx certificate

Instruction manuals

Genesis Models ED1-ED2 HART I&O
Installation and Operating Manual for Genesis™ Models ED1 & ED2 with HART® output

Product catalogs

Genesis Models ED1 & ED2 Multiphase Detector
The Genesis Multiphase Detector is a Time Domain Reflectometry (TDR)-based, 24 VDC level detector designed to accurately...