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Brand: Endress+Hauser (E & H)
Endress+Hauser FMP53 Levelflex Hygienic Guided Radar Transmitter
Description
Endress+Hauser FMP53 hygienic Levelflex guided-wave radar
The Endress+Hauser FMP53 is the hygienic member of the Levelflex guided-wave radar family. The FMP53 uses a polished stainless steel rod probe and sanitary process connections so it can be cleaned in place and sterilized in place in food, beverage, dairy and pharmaceutical tanks. The device measures the distance from a reference point to the product surface with a guided microwave pulse and converts it to level. Seven Star LLC supplies the FMP53 in Oman and the GCC as an independent supplier in Muscat, and prepares the quotation from your connection and tank data.
Guided radar is unaffected by vapor, foam, agitation and changes in density or conductivity, which is a practical advantage in vessels that are cleaned with hot media or run through temperature cycles. The FMP53 is designed around those conditions, with a gap-free construction, electropolished surfaces on separable probes and sealing material choices for CIP and SIP.
FMP53 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Endress+Hauser / FMP53 (Levelflex, hygienic guided-wave radar) |
| Measuring principle | Guided-wave radar with multi-echo tracking |
| Application | Level measurement in liquids in hygienic and sanitary processes |
| Probe | Rod probe only, 316L: inseparable (Ra below 0.76 µm) or separable and electropolished (Ra below 0.38 µm) |
| Maximum probe length | 4 m (13 ft), inseparable or separable |
| Accuracy (digital) | ±2 mm; non-repeatability 1 mm or better |
| Minimum dielectric constant | Rod probe: relative permittivity 1.6 or higher |
| Process temperature | –20 to +130 °C with EPDM; –20 to +150 °C with FFKM; –10 to +150 °C with FKM |
| Process pressure | –1 to 16 bar (–14.5 to 232 psi), reduced by some connections |
| Process connections | Tri-Clamp ISO 2852 (1 to 3 in), DIN 11851, DIN 11864-1A, NEUMO BioControl, Varivent N, SMS |
| Hygienic data | Seal approvals FDA, 3A, EHEDG, USP Class VI depending on material; ASME BPE conformity (CoC option) |
| Communication | 2-wire 4–20 mA HART; PROFIBUS PA; FOUNDATION Fieldbus; Bluetooth for commissioning |
| Supply (HART) | 11.5 to 35 V DC at the terminals (non-Ex) |
| Ambient temperature | –20 to +80 °C; local display –20 to +70 °C |
| Protection | IP66/NEMA 4X; IP68/NEMA 6P with housing closed |
| Functional safety | SIL 2 as per IEC 61508, SIL 3 with homogeneous redundancy; WHG overfill protection |
How the FMP53 delivers reliable hygienic level measurement
A pulse is guided along the rod and reflected where the dielectric constant changes, namely at the liquid surface. The transit time gives the distance, and the electronics subtract it from the empty distance entered during setup. Optional linearization with up to 32 points converts the level to volume or mass in non-cylindrical vessels. Multi-echo tracking evaluates the history of the received signals to suppress false echoes from agitators, nozzles or heating coils.
For hygienic duty the details matter. The inseparable rod has a mechanically polished surface, the separable rod is electropolished, the process seal is a gap-free design, and the rod can be reused after autoclaving when the separable version with the protective cover is used. A connectable reference probe and a calibration kit are available as accessories for periodic verification.
FMP53 seal materials and temperature
| O-ring material | Process temperature | Approvals listed |
|---|---|---|
| EPDM | –20 to +130 °C | FDA, 3A (Class II), EHEDG, USP Class VI |
| FFKM (Kalrez) | –20 to +150 °C | FDA, 3A (Class I) |
| FKM | –10 to +150 °C | EHEDG, USP Class VI |
The seal approvals apply to the stated material only. Match the seal to the CIP and SIP temperature of your plant rather than the normal process temperature.
Where the FMP53 fits among related Levelflex parts
Within the FMP5x range, the FMP52 is the PFA-coated version for corrosive liquids, the FMP51 and FMP54 serve general liquids and high temperature or pressure, and the FMP56 and FMP57 serve bulk solids. The FMP53 is the model for sanitary connections and ASME BPE-oriented projects. Seven Star LLC lists the FMP52, FMP56 and FMP57 separately for comparison. In a hygienic plant, the FMP53 is typically paired with a point-level device for overfill protection and a hygienic temperature sensor.
The same electronics and operating concept as the other Levelflex models apply: local display with guided menus, Bluetooth operation through the SmartBlue app, HistoROM data memory, and Heartbeat Technology functions for diagnostics and verification.
FMP53 selection and ordering checklist
- Connection standard and size: Tri-Clamp, DIN 11851, DIN 11864-1A, NEUMO, Varivent or SMS.
- Probe length up to 4 m, separable or inseparable rod, and whether the protective cover for autoclaving is needed.
- Seal material to match the CIP and SIP temperature and any FDA, 3A, EHEDG or USP requirement.
- Surface finish, material certificates and the ASME BPE option if the project specifies it.
- Dielectric constant of the product; below 1.6 may need confirmation, and liquefied gases are on request.
- Communication: HART, PROFIBUS PA or FOUNDATION Fieldbus and display or Bluetooth options.
- Hazardous-area classification, SIL or WHG needs, and linearity protocol (3-point or 5-point).
Installation, commissioning and maintenance of the FMP53
Mount the probe so that it does not touch tank walls or internals, and check that the nozzle dimensions are suitable for the connection. When NEUMO BioControl connections are used, the reference point is different from the other connections, so enter the correct empty distance during commissioning. Tighten clamps with the correct gasket, and keep the hygienic seal clean and undamaged.
Commissioning is guided and short, and can be done through the local display or by Bluetooth on a tablet. After CIP or SIP cycles, review the diagnostic messages and check for buildup. Retain a spare seal set in the material used on your plant so a seal replacement does not delay a batch. If an inseparable probe is damaged, replace it as a unit.
Typical FMP53 applications in Oman and the GCC
Oman and the GCC have growing dairy, juice, bottled water, edible oil and pharmaceutical manufacturing, and the FMP53 suits storage tanks, mixing vessels and process tanks in these plants. It also serves desalination post-treatment and potable water tanks where hygienic design is desired. With ambient operation from –20 to +80 °C and an IP66/IP68 housing, the transmitter copes with hot production halls and washdown, while the guided-radar principle copes with steam, foam and condensate above the product.
Information to send with an FMP53 RFQ
- Quantity and exact model: Endress+Hauser FMP53, with order code if available.
- Product, CIP and SIP temperatures, and vessel pressure.
- Connection type and size, probe length and rod version.
- Seal material and required hygienic approvals or certificates.
- Output, power and hazardous-area or safety requirements.
- Delivery location and schedule.
Documents and quotation
The Endress+Hauser technical information for the FMP53 is attached on this page as a datasheet, with connection drawings, seal tables and approvals.
Send the tank and connection data and we will confirm the configuration, lead time and documents for the FMP53 supplied to your project in Oman or the GCC.
Other Models in the Eh Levelflex Liquids Range
Seven Star LLC supplies models from the Eh Levelflex Liquids range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Endress+Hauser FMP52 Levelflex PFA Guided Radar Transmitter | Level Instrumentation | View details |
| Endress+Hauser FMP53 Levelflex Hygienic Guided Radar Transmitter | Level Instrumentation | You are viewing this model |
Datasheets & Documents
- Datasheet Endress+Hauser FMP53 Datasheet Download
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About brand
Endress+Hauser makes process measurement instruments for flow, level, pressure, temperature and liquid analysis. Georg H. Endress and Ludwig Hauser started the business in Lörrach, Germany, on 1 February 1953, first selling level meters, and the Endress+Hauser name has been used since 1957. The group is headquartered in Reinach, Switzerland, and has been wholly owned by the Endress family since 1975.
Seven Star LLC is an independent supplier listing Endress+Hauser flowmeters, level and pressure transmitters, temperature assemblies and liquid analysis products for buyers in Oman and the GCC. Instruments are matched from the full order code on the nameplate.
Endress+Hauser company profile
| Origin | Founded in Lörrach, Germany, on 1 February 1953 by the Swiss engineer Georg H. Endress and Ludwig Hauser |
|---|---|
| Headquarters | Endress+Hauser AG, Reinach (Basel-Landschaft), Switzerland |
| Ownership | Family owned; the Endress family has been the sole shareholder since 1975, and a family charter commits the company to stay family owned |
| Size | About 16,500 employees and sales of about EUR 3.7 billion (2023, as reported by the company) |
| Product families | Proline flowmeters, Micropilot and Levelflex radar, Liquiphant switches, Cerabar and Deltabar pressure, iTEMP and iTHERM temperature, Liquiline and Memosens liquid analysis |
Milestones
- 1953: Georg H. Endress and Ludwig Hauser start the business in Lörrach on 1 February, first selling level meters.
- 1957: The Endress+Hauser name comes into use.
- 1975: The Endress family becomes sole shareholder.
- 2023: About 16,500 employees and sales of about EUR 3.7 billion, as reported by the company.
Endress+Hauser product lines
| Line | Measuring principle | Typical use |
|---|---|---|
| Promass F 300, Promass 80F, 83F/84F | Coriolis mass flow | Direct mass flow and density of liquids and gases, hydrocarbon transfer and chemical dosing |
| Promag P 300, P 500, H 300, W 400, W 10, 50P | Electromagnetic flow | Water, wastewater, slurries and other conductive liquids |
| Prowirl F 200, 72F | Vortex flow | Steam, gas and low-viscosity liquids |
| Prosonic Flow 92F, t-mass 65F | Ultrasonic and thermal mass flow | Water lines; compressed air and industrial gases |
| Micropilot FMR62, FMR67, FMR60, FMR10B, FMR20, FMR50, FMR52 | Free-space radar level, 80 GHz and 26 GHz | Tanks, process vessels, silos and open water channels |
| Levelflex FMP51, FMP50, FMP54, FMP55 | Guided wave radar level | Level and interface in vessels, separators and bypass chambers |
| Liquiphant FTL51, Prosonic S FMU90 | Vibronic point level; ultrasonic level | High and low level alarms, pump protection, open channel flow |
| Cerabar PMC71B, PMP51B, PMP71, Deltabar PMD78B, PMD75 | Pressure and differential pressure | Process pressure, hydrostatic level and DP flow |
| iTEMP TMT82, TMT162, iTHERM TM101, TR66, TR10 | Temperature transmitters and thermometers | RTD and thermocouple points with thermowells |
| Liquiline CM444, CM442, Memosens CPS11E, Stamolys reagents | Liquid analysis | pH, ORP, conductivity, dissolved oxygen and nutrient analysis in water treatment and process |
Where Endress+Hauser instruments are used
In Oman and the GCC, Endress+Hauser instruments are common in oil and gas production and processing, refineries and petrochemicals, desalination and water networks, wastewater treatment, power plants and food and beverage plants. Coriolis meters measure hydrocarbon and chemical flows, electromagnetic meters cover water and wastewater, radar transmitters handle tank and silo level, and Liquiline analysers monitor water quality. Proline 300 and 500 flowmeters include Heartbeat Technology for in-situ verification, which reduces the need to remove a meter for checks.
Ordering Endress+Hauser instruments: what we need
The order code on the nameplate (for example PMP71-1QA1S11RDADU) defines every option: measuring range, process connection, materials, output, approvals and display. Send it with the serial number; Endress+Hauser can retrieve the original configuration from the serial number. For a new instrument add the medium, operating and design pressure and temperature, range, line size or tank geometry, process connection, wetted materials, output or protocol (4-20 mA HART, PROFIBUS, FOUNDATION Fieldbus, Modbus) and the hazardous-area approval required. Older models such as Promass 80/83 or Micropilot M are replaced by current Proline or 80 GHz Micropilot devices.
Facts checked against Endress+Hauser company history and product information, October 2026.
Browse Endress+Hauser products by category: Flowmeters, Level Transmitter, Pressure Instrumentation, Temperature, Liquid Analysis Sensors, Liquid Analytical Systems.
FAQ
Questions about the Endress+Hauser FMP53 Levelflex Hygienic Guided
Answers from our engineering team on installation, compatibility and integration.
01What makes the FMP53 hygienic?
It uses a polished 316L rod probe, sanitary process connections and gap-free seals, with approvals such as FDA, 3A, EHEDG and USP Class VI listed for specific seal materials. An ASME BPE certificate of conformity is available as an option.
02How long can the FMP53 rod be?
The maximum probe length is 4 m (13 ft), as either an inseparable or a separable rod. The separable version is electropolished and can be autoclaved with the protective cover.
03What temperature and pressure does the FMP53 handle?
Process pressure is –1 to 16 bar. Temperature depends on the O-ring: –20 to +130 °C for EPDM, –20 to +150 °C for FFKM and –10 to +150 °C for FKM.
04Which hygienic connections are available?
The technical information lists Tri-Clamp ISO 2852, DIN 11851, DIN 11864-1 Form A, NEUMO BioControl, Varivent N and SMS connections in 316L.
05What accuracy does the FMP53 achieve?
Level accuracy is ±2 mm with non-repeatability of 1 mm or better under reference conditions. Installation can add an offset of up to ±16 mm that is corrected at commissioning.
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