Ultrasonic measurement
Time-of-Flight
Prosonic FMU41

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 8m

FMU41

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Specs at a glance

Accuracy

+/- 2 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 ... 3 bar abs
(10 psi ... 44 psi)
Max. measurement distance

Liquids: 8 m (26 ft),
Solids: 3.5 m (11 ft)
Main wetted parts

PVDF

See all specifications

Field of application

The Prosonic FMU41 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: Thread
Temperature: -40 to +80°C (-40 to +176°F)
Pressure: +0.7 to +3bar (+10 to +44psi)
Maximum measuring distance: Liquids 8m (26ft), Solids 3.5m (11ft)
Blocking distance: Liquids and Solids 0.35m (1.15ft)
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

FMU131E
FMU131A

FMU41K

Success stories

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
Fit for purpose instrumentation for CNG compressors

The Egyptian government is working to replace liquid fuels with natural gas. To achieve this they targeted increasing the number of CNG stations in their country from 306 to 1000 by the end of 2021.
Read the full story
Extend SIL proof test intervals with new Liquiphant FTL51

Discover how our customer CABB was able to extend SIL proof test intervals with the new Liquiphant FTL51
Read the full story
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

Filter

Search spare parts by number in drawing

60 spare parts & accessories

Plug 3-pole, M12, gasket

further parts

Order code

52020763
Set of screws housing F12/T12/F23

Housing/housing accessories

Drawing number

Order code

12

535720-9020
Sealing kit FMU4x

Sealing

Drawing number

Order code

65

52010526
Cover F12/T12 Alu, coated, gasket

Cover

Drawing number

Order code

20

517391-0011
Cover F12/T12 Alu, window, gasket

Cover

Drawing number

Order code

20

52005936
Hood housing T12

Cover

Drawing number

Order code

11

52005643
Cover terminal compartment F12/F23

Cover

Drawing number

Order code

11

52006026
Cover terminal compartment F12/F23,FHX40

Cover

Drawing number

Order code

11

52019062
Cover T3/T12 Alu, coated, gasket

Cover

Drawing number

Order code

25

518710-0020
O-ring 113.9x3.63 EPDM, 5 pieces

further parts

Order code

71092209
Terminal module 4-pole, HART, 2-wire

Terminal module

Drawing number

Order code

35

52006197
Terminal module 4-pole, PA, FF

Terminal module

Drawing number

Order code

35

52012156
Terminal mod. Ex d, 4-pol., 2wr,HART,T12

Terminal module

Drawing number

Order code

35

52013302
Terminal mod. Ex d, 2-pol.,2wr,PA/FF,T12

Terminal module

Drawing number

Order code

35

52013303
Power supply 10.5-32VDC (housing F12)

Terminal module

Drawing number

Order code

35

52013304
Power supply 90-250VAC (F12), Ex only

Terminal module

Drawing number

Order code

35

52013305
Power supply CSA, 10.5-32VDC (housg F12)

Terminal module

Drawing number

Order code

35

52015585
Power supply CSA, 90-250VAC (housg F12)

Terminal module

Drawing number

Order code

35

52015586
Terminal mod. 4-pol.,EEx ia,HART,T12,OVP

Terminal module

Drawing number

Order code

35

52018949
Terminal mod. 2-p.,EEx ia,PA/FF,T12,OVP

Terminal module

Drawing number

Order code

35

52018950
Power supply 90-250VAC (F12) v2, Non-Ex

Terminal module

Drawing number

Order code

35

71396869
Electronics FMU4x, Ex, 4-wire, HART,v4.0

Electronic

Drawing number

Order code

30

71025602
Electr.FMU4x,haz.,2-wire,HART, v4.02

Electronic

Drawing number

Order code

30

71344231
Electronics FMU4x, Ex, PA, v4.0_2

Electronic

Drawing number

Order code

30

71344233
Electronics FMU4x, Ex, FF, v4.02.2

Electronic

Drawing number

Order code

30

71462298
Display VU331, version 3

Display

Drawing number

Order code

40

71386715
Sensor FMU41 NPT2

Sensoric

Drawing number

Order code

50

52010508
Sensor FMU41 G2

Sensoric

Drawing number

Order code

50

52010510
Hexagon nut (SW70) G2, bk, PC

Fixing

Drawing number

Order code

58

52000598
Adaption kit housing F12, 2-wire, FHX40

further parts

Order code

52018204
Adaption kit housing F12, 4-wire, FHX40

further parts

Order code

52018205
Cable FHX40, 20m

further parts

Order code

52016334
Cable FHX40, 5m

further parts

Order code

71020502
Cable FHX40, 10m

further parts

Order code

71020503
Cable FHX40, 30m

further parts

Order code

71020504
Adapterk. FMR2xx,FMx4x,PMx7x,FMD7x,FMG60

further parts

Order code

71000221
Display FHX40

Order code

FHX40-
ToF Adapter FXA291

Order code

71007843
Mounting bracket FHX40 1" / 2" pipe

Order code

52013874
Sensor support 500mm, 316L, 2" sensor

Order code

71452321
Sensor support 1000mm, 316L, 2" sensor

Order code

71452322
Installation bracket 250x400x120 G2

Order code

71452325
Wall bracket for sensor support, ST

Order code

919792-0000
Protective cover for housing T12/F12, SS

Order code

543199-0001
Commubox FXA195

Order code

FXA195-

	EN
02/04/2012
01/09/2007
20/07/2006
14/02/2004
01/01/2002

Language:	English
Version:	02/04/2012
File size:	1.5 MB
File name:	BA00240FEN_1312.pdf

Language:	English
Version:	09/06/2022
File size:	1.1 MB
File name:	TI01457FEN_0121-00.pdf

	EN
25/03/2024
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
19/12/2014
26/06/2014
16/01/2013
04/04/2012
31/03/2011

	EN
09/06/2022

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

Ultrasonic measurementTime-of-FlightProsonic FMU41

Cost effective device for sophisticated level measurement in liquids and bulk solids for up to 8m

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

Level measurement of silos on construction sites

Time saved, safety increased

Fit for purpose instrumentation for CNG compressors

Extend SIL proof test intervals with new Liquiphant FTL51

Optimized logistics concept for tank systems

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

Measuring principle

Product headline

Max. measurement error

Measuring range

Max. process pressure

Medium temperature range

Degree of protection

Outputs

Inputs

Digital communication

Hazardous area approvals

Back

Prosonic M FMU40/41/42/43/44

Prosonic M FMU41

TI Weld-in adapter, process adapter and flanges

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

Prosonic M FMU41

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

Prosonic M FMU41 HART

FMU4x - Exchange of housing T12

FMR2x, FMP4x, FMU4x - Exchange of terminal module

Prosonic M FMU40/41/42/43/44 4-20 mA HART Brief Operating Instructions

FMU40, FMU41 - Exchange sensor

Micropilot M, Leveflex M, Prosonic M - Modification of F12 housing (2 wire) for connection of FHX40

Levelflex M, Prosonic M - modification of housing F12 (4 wire) for Connection of FHX40

Ultrasonic level measurement

Prosonic M FMU40/41/42/43/44 PROFIBUS-PA Brief Operating Instructions

Prosonic M FMU40/41/42/43/44 FOUNDATION Fieldbus Brief Operating Instructions

Prosonic M FMU41 HART

Weather protection cover Mounting Instruction

Ultrasonic measurement
Time-of-Flight
Prosonic FMU41

Gateway for
measurement values
Fieldgate FXA42

Supply chain management
Online software
SupplyCare Hosting

Gateway for
measurement values
Fieldgate FXA42

Supply chain management
Online software
SupplyCare Hosting