Endress+Hauser FMP54-AAGCCAAED1AAJ Levelflex Guided Radar Level Transmitter

Description

Overview

The Endress+Hauser FMP54 Levelflex is a guided radar (Time-of-Flight) level transmitter engineered for continuous level and interface measurement in demanding liquid applications. This particular configuration, order code FMP54-AAGCCAAED1AAJ, is built with a 360mm rod probe and a ceramic-graphite process seal that safeguards performance at elevated process temperatures and pressures, making it suitable for steam boiler feedwater tanks, reactors, and other vessels where flash steam, turbulence, or foam would defeat a traditional non-contact radar.

With engineering support in Muscat, Seven Star LLC supplies the FMP54 Levelflex to refineries, petrochemical plants, power generation facilities, and water treatment operators across the Sultanate of Oman, Muscat, and the wider GCC region. Facility engineers specifying the FMP54 through Seven Star LLC receive a formal quotation, full technical datasheets, and technical support with selection.

Measurement Principle

The FMP54 operates on the guided Time-of-Flight (ToF) principle, a variant of radar level measurement in which high-frequency electromagnetic pulses are injected along a metallic rod, rope, or coaxial probe that extends down into the vessel. Unlike a free-radiating radar, the Endress+Hauser FMP54 pulse travels along a physical waveguide rather than radiating freely through open air, and this signal strength is preserved even in low-dielectric media, foam, heavy vapor, or turbulent surfaces that would scatter a conventional non-contact radar signal.

When the guided pulse reaches the boundary between air and the process medium, a portion of its energy reflects back up the probe toward the electronics housing. The onboard microprocessor precisely times this reflection and, because the propagation speed of the pulse along the probe is a known constant, converts the transit time directly into a distance and therefore a level reading, accurate to within ±2mm on the rod-probe version. On FMP54 versions ordered with the optional gas phase compensation package, the transmitter further corrects the raw reading for pressure and temperature-related changes in dielectric constant, so the instrument stays accurate even as steam or vapor conditions shift inside a pressurized vessel.

Engineering Design of the Endress+Hauser FMP54

The FMP54 in the AAGCCAAED1AAJ configuration is built around a compact 360mm rigid rod probe, a length suited to smaller vessels, standpipes, bypass chambers, and level indicator columns where a longer rope or coax probe is unnecessary. The probe-to-housing transition uses a ceramic-graphite seal, a design for process temperatures up to +450°C (HT version; XT version up to +280°C) and pressures up to +400 bar, depending on version and process connection, conditions found in high-pressure steam drums and superheated process vessels.

The two-chamber transmitter housing separates the terminal compartment from the electronics compartment, permitting field wiring and configuration without exposing sensitive circuitry, and is available with the process connection, wetted materials, and output protocol selected at the point of order to match the exact duty. A local display with keypad allows on-site parameter adjustment, false-echo suppression mapping, and diagnostic readout, while the HART-based output integrates directly into existing 4-20mA loops and asset management systems without additional gateway hardware.

Key Features

The Endress+Hauser FMP54 combines guided radar reliability with high-temperature, high-pressure process compatibility. Core capabilities include:

  • Guided Time-of-Flight radar measurement unaffected by changes in density, conductivity, or dielectric constant of the process medium.
  • 360mm rigid rod probe suited to compact vessels, bypass chambers, and standpipe installations.
  • Ceramic-graphite process seal for temperatures up to +450°C (HT version) and pressures up to +400 bar, depending on process connection.
  • Measurement accuracy of ±2mm on rod probes; optional gas phase compensation is intended for steam or gas phases above the liquid.
  • Optional gas phase compensation (application package EF or EG) for stable readings under changing pressure and steam-phase dielectric conditions.
  • Two-chamber housing isolating field wiring from the electronics compartment for safer maintenance.
  • Local display and keypad for on-site configuration, echo mapping, and diagnostics.
  • HART-compatible 4-20mA output for direct integration into existing DCS and asset management platforms.

Industrial Applications

The combination of high-temperature tolerance and guided-wave reliability makes the Endress+Hauser FMP54 a preferred choice for continuous level measurement in steam generation, hydrocarbon processing, and high-purity water systems across the region. In Oman’s power generation and district cooling plants, the FMP54 is routinely specified for boiler feedwater tanks, blowdown vessels, and deaerator level control, where flashing steam and condensate turbulence would compromise a non-contact instrument.

Refineries and petrochemical facilities in the Sohar and Salalah economic zones rely on the Endress+Hauser FMP54 for interface detection between hydrocarbon and water phases in separator vessels, as well as for level control in reactors and high-pressure knockout drums. Backed by manufacturer datasheet documentation, Seven Star LLC distributes the Levelflex platform to EPC contractors and plant operators throughout the GCC, supporting projects from initial specification through commissioning and long-term spares availability.

Technical Specifications

Full technical parameters for the Endress+Hauser FMP54 guided radar level transmitter, order code FMP54-AAGCCAAED1AAJ, are listed below for engineers evaluating the Endress+Hauser FMP54 against alternative guided radar instruments:

Parameter Specification
Model Endress+Hauser FMP54 Levelflex
Order Code FMP54-AAGCCAAED1AAJ
Measurement Principle Guided Radar / Time-of-Flight (TDR)
Probe Type Rigid Rod Probe
Probe Length 360 mm
Process Seal Ceramic-Graphite
Process Temperature XT version -196 to +280°C; HT version -196 to +450°C
Process Pressure Up to +400 bar
Accuracy ±2 mm (rod probe)
Output Signal 4-20mA / HART
Housing Two-chamber, field-mount
Seal Versions Graphite XT: -196 to +280 °C; Graphite HT: -196 to +450 °C (HT recommended for saturated steam above 200 °C)
Process Pressure Range -1 to +400 bar (-14.5 to +5800 psi)
Maximum Measuring Range (FMP54) Rod 10 m; rope 45 m; coaxial 6 m
Functional Safety SIL2 as per IEC 61508, SIL3 for homogeneous redundancy
Communication Options 4-20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus; Bluetooth for commissioning, operation and maintenance
Process Connections (FMP54) Thread G 1-1/2 or MNPT 1-1/2; flanges ASME 2 in to 4 in, DN50 to DN100, JIS
Gas Phase Compensation Optional: reference length Lref 300 mm (option EF) or 550 mm (option EG)
Approvals and Certificates International explosion protection certificates, WHG overfill protection, marine approval, steam boiler approval, EN 10204-3.1

Seal Selection: XT and HT Versions

Gas Phase Compensation for Steam Applications

Request a Quote for Endress+Hauser FMP54-AAGCCAAED1AAJ Levelflex Guided Radar Level Transmitter

To submit a formal Request for Quote (RFQ), confirm current availability and lead time, or obtain the complete technical datasheet for the Endress+Hauser FMP54-AAGCCAAED1AAJ Levelflex guided radar level transmitter, please contact the instrumentation division at Seven Star LLC today. Working closely with plant engineers in the region, our engineers are ready to support specification, sourcing, and commissioning of your level measurement project.

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Datasheets & Documents
  • PDF Instruction Manual Endress+Hauser FMP54-AAGCCAAED1AAJ Levelflex Guided Radar Level Transmitter Manual Download
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About brand

Level, flow and pressure measurement account for most of the Endress+Hauser instruments engineers ask us about, and each device is defined by the order code on its nameplate. Endress+Hauser, founded in 1953 and based in Reinach, Switzerland, builds process instrumentation for liquids, gases and bulk solids.

Seven Star LLC is an independent supplier listing Endress+Hauser (E+H) flowmeters, radar and vibronic level instruments, pressure and temperature transmitters and liquid analysis equipment for plants in Oman and the GCC.

Endress+Hauser product families on this page

Level is the largest group: Micropilot free-space radar (FMR10B, FMR62 and the FMR67 for bulk solids, all 80 GHz), Levelflex guided radar (FMP50, and the FMP55 for interface measurement), the Liquiphant FTL51 vibronic point level switch and the Prosonic S FMU90 ultrasonic transmitter. Flow covers Proline Promag electromagnetic flowmeters (Promag P 300, Promag W 400) and the Prowirl F 200 vortex meter. Pressure is represented by the Cerabar PMP51B, temperature by the iTEMP TMT82 HART transmitter. For liquid analysis the listing has the Liquiline CM444 multiparameter transmitter and Memosens sensors such as the CPS11E pH electrode.

Where Endress+Hauser instruments are used

Water and wastewater plants rely on Promag W meters, radar level and Liquiline analysis. Oil and gas, chemical and power plants specify Levelflex and Micropilot on tanks and separators, Prowirl on steam and gas, and Cerabar on process lines. Food and pharmaceutical producers use hygienic versions of the same families, and cement and mining sites use the FMR67 on silos.

Ordering Endress+Hauser instruments: what we need

Send the order code and, for a replacement, the serial number from the nameplate. The extended order code is better still, because it spells out every option. Without a code we need the medium, pressure and temperature, measuring span, process connection, wetted materials, output signal or fieldbus, power supply, display and the hazardous area approval required. For flowmeters add line size and liner, for radar the tank height and nozzle size.

Frequently Asked Questions

What makes the FMP54 suitable for high-temperature steam applications?
The FMP54 uses a ceramic-graphite process seal for temperatures up to +450°C (HT version) and pressures up to +400 bar, allowing the guided radar probe to operate reliably inside boiler feedwater tanks and other high-energy steam vessels where standard seals would fail.
Does installing the FMP54-AAGCCAAED1AAJ reduce commissioning downtime?
Yes. The guided radar probe can be inserted through a standard flange or threaded connection without process modification, and on-site parameter configuration via the local display keeps commissioning straightforward.
What probe lengths and process connections are available for the FMP54?
This configuration ships with a 360mm rigid rod probe. The Levelflex FMP54 platform is also available with longer rod, rope, or coaxial probes and a range of flanged and threaded process connections to match the vessel geometry.
Can the FMP54 integrate with existing HART-based control systems?
Yes. The FMP54 outputs a standard 4-20mA/HART signal that integrates directly into existing DCS, PLC, and asset management platforms without additional communication gateways.
Is Seven Star LLC an experienced supply partner for Endress+Hauser products?
Yes. Seven Star LLC supplies Endress+Hauser (E & H) products to customers in Oman and the GCC and can provide the manufacturer documentation and technical support on request.