Name: Prosonic M FMU44
Brand: Endress+Hauser
Availability: InStock

Ultrasonic measurement Time-of-Flight Prosonic FMU44

Phase out

Product is getting phased out

Phase out Product status

Ultrasonic measurement Time-of-Flight Prosonic FMU44

New alternatives available

Successor

Micropilot FMR30B

Phase out policy
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Phase out policy

Endress+Hauser are committed to the long term support of all our products

We undertake support and service for our products for a period of ten years after notice of product withdrawal (until spareparts are not available any more)

However we reserve us the right to offer alternative solutions including replacement products if deemed more appropriated.

Product status

Product root FMU44

Name Ultrasonic measurement Time-of-Flight Prosonic FMU44

Product status In phase out

Phase out date 6/2026

Order stop 4/2027

Spare sensor until not applicable

Calibration until not applicable

Spares available 4/2031

Repair until not applicable

New alternative FMR30B

Maintenance advice

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 20m

Time-of-Flight measuring principle

Have questions about this product?

Ultrasonic measurement Time-of-Flight Prosonic FMU44

Phase out

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 20m

Get a quote

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Successors

Micropilot FMR30B

Compare

Micropilot FMR30B

Simple and efficient level measurement in liquids and solids

Benefits

Reliable non-contact measurement
Quick and simple commissioning via menu-guided on-site operation with four-line plain text display, 7 languages selectable
Envelope curves on the on-site display for simple diagnosis
Hermetically sealed and potted sensor
Chemically resistant sensor out of PVDF
Calibration without filling or discharging
Integrated temperature sensor for automatic correction of the temperature dependent sound velocity

Services and resources

Product Support Product documentation, troubleshooting articles, device details and more.

FLEXible answers to individual needs

Current product

Ultrasonic measurement Time-of-Flight Prosonic FMU44

High-end products
Highly functional and convenient

What is FLEX?

FLEX selections

Technical excellence

Simplicity

Fundamental selection Meet your basic measurement needs

Lean selection Handle your core processes easily

Extended selection Optimize your processes with innovative technologies

Xpert selection Master your most challenging applications

Variable

Learn more about the FLEX selections

Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

Learn more

24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

Have questions about this product?

Selection of compatible products

Fieldgate FXA42 - Gateway for remote monitoring

Gateway for  measurement values Fieldgate FXA42

Communication of measurement values of connected 4 to 20mA analog as well as digital field devices

RN42 active barrier

Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex

Product picture loop-powered indicator RIA15

RIA15 process indicator

Loop-powered Ex ia process indicator as field or control panel device for 4 to 20 mA signals or HART®protocol

HAW569 surge protective device

Surge protective device for installation in the field device for power supply and communication signals optional with SIL and Ex approval

Spare parts and accessories

further parts

Plug 3-pole, M12, PA, gasket

further parts

Order code 52020763

Housing/housing accessories

Set of screws housing F12/T12/F23

Housing/housing accessories

Order code 535720-9020

Drawing number 12

Sealing

Sealing kit FMU4x

Sealing

Order code 52010526

Drawing number 65

Cover

Cover terminal compartment F12/F23

Cover

Order code 52006026

Drawing number 11

Spare parts & accessories

Choose from our suggested options

Looking for more options?

Use the extended configuration to configure from all available options.

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Looking for more options? Use extended configuration

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Configuration details

Ultrasonic - Prosonic FMU44

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CAD Drawings

Configuration support

Spare parts and accessories

further parts

Plug 3-pole, M12, PA, gasket

further parts

Order code 52020763

Housing/housing accessories

Set of screws housing F12/T12/F23

Housing/housing accessories

Order code 535720-9020

Drawing number 12

Sealing

Sealing kit FMU4x

Sealing

Order code 52010526

Drawing number 65

Cover

Cover terminal compartment F12/F23

Cover

Order code 52006026

Drawing number 11

Spare parts & accessories

Selection of compatible products

Gateway for  measurement values Fieldgate FXA42

Communication of measurement values of connected 4 to 20mA analog as well as digital field devices

RN42 active barrier

Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex

RIA15 process indicator

Loop-powered Ex ia process indicator as field or control panel device for 4 to 20 mA signals or HART®protocol

HAW569 surge protective device

Surge protective device for installation in the field device for power supply and communication signals optional with SIL and Ex approval

Accuracy	+/- 4mm or +/- 0,2 % of set measuring range
Process temperature	-40 °C ... 80 °C (-40 °F ... 176 °F)
Process pressure / max. overpressure limit	0,7 bar ... 2,5 bar abs (10 psi ... 36 psi)
Max. measurement distance	Liquids: 20 m (66 ft), Solids: 10 m (33 ft)
Main wetted parts	PVDF
Measuring principle	Ultrasonic
Characteristic / Application	Compact ultrasonic transmitter
Supply / Communication	2-wire HART
Ambient temperature	-40 °C ... 80 °C (-40 °F ... 176 °F)
Process connection	Flange DN100, ASME 4", JIS 10K 100 DN150, ASME 6", JIS 10K 150 DN200, ASME 8", JIS 10K 200 Mounting bracket
Blocking distance	0.5 m (1.9 ft)
Communication	4...20 mA HART
Certificates / Approvals	ATEX, FM, CSA, IEC, INMETRO, NEPSI
Application limits	Fast filling and discharging rate: FMU90 + FDU9x Level limit detection: FMU90 + FDU9x
Accuracy	+/- 4mm or +/- 0,2 % of set measuring range
Process temperature	-40 °C ... 80 °C (-40 °F ... 176 °F)
Process pressure / max. overpressure limit	0,7 bar ... 2,5 bar abs (10 psi ... 36 psi)
Max. measurement distance	Liquids: 20 m (66 ft), Solids: 10 m (33 ft)
Main wetted parts	PVDF
Measuring principle	Ultrasonic
Characteristic / Application	Compact ultrasonic transmitter
Supply / Communication	2-wire HART
Ambient temperature	-40 °C ... 80 °C (-40 °F ... 176 °F)
Process connection	Flange DN100, ASME 4", JIS 10K 100 DN150, ASME 6", JIS 10K 150 DN200, ASME 8", JIS 10K 200 Mounting bracket
Blocking distance	0.5 m (1.9 ft)
Communication	4...20 mA HART
Certificates / Approvals	ATEX, FM, CSA, IEC, INMETRO, NEPSI
Application limits	Take notice of range diagram

Product is getting phased out

New alternatives available

Phase out policy

Product status

Ultrasonic measurement Time-of-Flight Prosonic FMU44

Phase out

Ultrasonic measurement Time-of-Flight Prosonic FMU44

Product information

Selection of compatible products

Spare parts and accessories

Choose from our suggested options

Spare parts and accessories

Selection of compatible products

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Product is getting phased out

New alternatives available

Phase out policy

Product status

Ultrasonic measurement Time-of-Flight Prosonic FMU44 Phase out

Ultrasonic measurement Time-of-Flight Prosonic FMU44

Product information

Selection of compatible products

Spare parts and accessories

Choose from our suggested options

Spare parts and accessories

Selection of compatible products

Products & Services

Industries

Support

Company

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Ultrasonic measurement Time-of-Flight Prosonic FMU44

Phase out