Ultrasonic measurement
Time-of-Flight
Prosonic FMU42

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 10m

FMU42

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Specs at a glance

Accuracy

+/- 4 mm 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: 10 m (33 ft),
Solids: 5 m (16 ft)
Main wetted parts

PVDF

See all specifications

Field of application

The Prosonic FMU42 sensor is suited for non-contact level measurement in fluids, pastes, coarse bulk material and flow measurement in open channels or at weirs. The two-wire or four-wire compact transmitter can be used in applications with storage tanks, agitators, on stockpiles and conveyor belts. The envelope curve can be shown on the on-site display for simple diagnosis. Linearization function (up to 32 points) for conversion of the measured value into any unit of length, volume or flow rate.

Two-wire or four wire instrument for continuous non-contact level and flow measurement.

Process connection: Flange
Temperature: -40 to +80°C (-40 to +176°F)
Pressure: +0.7 to +2.5bar (+10 to +36psi)
Maximum measuring distance: Liquids 10m (33ft), Solids 5m (16ft)
Blocking distance: Liquids and Solids 0.4m (1.3ft)
International explosion protection certificates

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

Videos

Time-of-Flight measuring principle

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Predecessor

FMU671
FMU676
FMU673Z

FMU678Z
DU40C

Success stories

Optimized logistics concept for tank systems

We implemented a highly effective logistics concept at chemicals distributors Brenntag Schweizerhall AG's Basel site.
Read the full story
Smart hardware and cloud-based software increase efficiency

Smart hardware and cloud-based software increase efficiency
Read the full story
Tagatose manufacturer upscales using process automation

Bonumose decided to enhance, automate and digitalize its tagatose manufacturing process with Endress+Hauser instrumentation to reach its company growth goals
Read the full story
Level measurement of silos on construction sites

Discover how Profibaustoffe Austria GmbH automated the monitoring of bulk material inside silos to deliver refills on a "just- in-time" basis.
Read the full story
Time saved, safety increased

Employees of Returkraft regularly have to fulfill and document all requirements of the SIL measuring points in the plant.
Read the full story

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Optional add-ons

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Often bought together

Accessories

Display FHX40

ToF Adapter FXA291

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Language:	English
Version:	09/06/2022
File size:	1.1 MB
File name:	TI01458FEN_0121-00.pdf

	EN
19/12/2014
26/06/2014
16/01/2013
04/04/2012
31/03/2011

Language:	English
Version:	19/12/2014
File size:	3.1 MB
File name:	TI00365FEN_1714.pdf

	EN
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15/09/2023
28/10/2021
30/07/2021
19/06/2020

Language:	English
Version:	25/03/2024
File size:	1.1 MB
File name:	TI00426FEN_2524.pdf

	EN
09/06/2022

	EN
09/06/2022

	EN
09/06/2022

	EN
02/04/2012
27/02/2009
30/05/2008
03/05/2007
13/04/2005

Ultrasonic measurementTime-of-FlightProsonic FMU42

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 10m

Specs at a glance

Accuracy

Process temperature

Process pressure / max. overpressure limit

Max. measurement distance

Main wetted parts

Field of application

Benefits

Videos

Extended selection

Predecessor

Success stories

Optimized logistics concept for tank systems

Smart hardware and cloud-based software increase efficiency

Tagatose manufacturer upscales using process automation

Level measurement of silos on construction sites

Time saved, safety increased

Measuring principle

Characteristic / Application

Supply / Communication

Accuracy

Ambient temperature

Process temperature

Process pressure / max. overpressure limit

Main wetted parts

Process connection

Blocking distance

Max. measurement distance

Communication

Certificates / Approvals

Application limits

Measuring principle

Characteristic / Application

Supply / Communication

Accuracy

Ambient temperature

Process temperature

Process pressure / max. overpressure limit

Main wetted parts

Process connection

Blocking distance

Max. measurement distance

Communication

Certificates / Approvals

Application limits

Back

Prosonic M FMU42

Prosonic M FMU40/41/42/43/44 Technical Information

TI Weld-in adapter, process adapter and flanges

Prosonic M FMU42

Prosonic M FMU40/41/42/43/44 Technical Information

Prosonic M FMU42 HART

Prosonic M FMU40/41/42/43/44

Prosonic M FMU40/41/42/43/44

Prosonic M FMU40/41/42/43/44

Prosonic M FMU40/41/42/43/44

FMU4x - Exchange of housing T12

Prosonic M FMU42 HART

Back

Plug 3-pole, M12, gasket

Set of screws housing F12/T12/F23

Sealing kit FMU4x

Cover F12/T12 Alu, coated, gasket

Cover T3/T12 Alu, coated, gasket

Cover F12/T12 Alu, window, gasket

Cover terminal compartment F12/F23

Cover terminal compartment F12/F23,FHX40

Hood housing T12

O-ring 113.9x3.63 EPDM, 5 pieces

Terminal module 4-pole, HART, 2-wire

Terminal module 4-pole, PA, FF

Terminal mod. Ex d, 4-pol., 2wr,HART,T12

Terminal mod. Ex d, 2-pol.,2wr,PA/FF,T12

Power supply 10.5-32VDC (housing F12)

Power supply 90-250VAC (F12), Ex only

Power supply CSA, 10.5-32VDC (housg F12)

Power supply CSA, 90-250VAC (housg F12)

Terminal mod. 4-pol.,EEx ia,HART,T12,OVP

Ultrasonic measurement
Time-of-Flight
Prosonic FMU42