Endress+Hauser Prosonic M FMU40 User manual

BA239F/00/en/04.05
52010988
Valid as of software version:
V 01.02.00 (amplifier)
V 1.0 (communication)
Operating Instructions
Prosonic M FMU40/41/42/43
Ultrasonic Level Measurement
9

Short instructions Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
2
Short instructions
L00-FMU4xxx-05-00-00-en-001
Contents of the operating instructions
This operating instructions describes the installation and commissioning of the Prosonic M
ultrasonic level transmitter. It contains all the functions required for a normal measuring operation.
Also, the Prosonic M provides additional functions for optimising the measuring point and for
converting the measured value. These functions are not included in this operating instructions.
You can find an overview of all the device functions in the Appendix.
You can find a detailed description of all the device functions in the operating instructions BA
240F/00/en "Prosonic M - Description of Instrument Functions". This is located on the supplied
documentation CD-ROM.
E
+
-
+
E
+
-
F
L
D
E
E
E
-
… …
KA 183F/00/a2/02.02
52010993
BD
… …
100%
0%
100 (HART)
2457 (PA,FF)
333 (HART)
33333 (PA,FF)
… …
52010993
… …
Prosonic M - Quick Setup
- dome
ceiling
- horizontal
cyl.
- bypass
…
- unknown
- liquid
- > 4 mm
- < 4 mm
- standard
- calm
surface
- add.
agitator
…
input E
(s. sketch)
input F
(s. sketch)
- ok
- too small
- too big
- unknown
- manual
displayed
(s. sketch)
D and L are confirm
or specify
range
suggestion
000
measured value
Group
selection
00
basic setup
01
safety settings
0C
system
parameter
0E
Envelope curve
04
linearisation
05
extended calibr.
06
output (HART, FF)
profibus param.(PA)
0A
diagnostics
0A0
present
error
002
tank shape
004
process
cond.
005
empty
calibr.
006
full
calibr.
008
dist./
meas value
051
check
distance
003
medium
property
052
range of
mapping
053
start
mapping
008
dist./
meas value
0E1
plot settings
0E2
recording
curve
0A1
previous
error
0A4
unlock
parameter
0E
temperature
09
display
092
language
BD: blocking distance
0A3
reset
0C0
tag no.
059
blocking
distance
B
displayed
(s. sketch)
D is
Contrast: +or +

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Table of contents
3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning, operation . . . . . . . . . . . 4
1.3 Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Notes on safety conventions and symbols . . . . . . . . . 5
2 Identification . . . . . . . . . . . . . . . . . . . . 6
2.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Product structure FMU 40 . . . . . . . . . . . . . . . . . . . . 7
2.3 Product structure FMU 41 . . . . . . . . . . . . . . . . . . . . 8
2.4 Product structure FMU 42 . . . . . . . . . . . . . . . . . . . . 9
2.5 Product structure FMU 43 . . . . . . . . . . . . . . . . . . . 10
2.6 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.7 Certificates and approvals . . . . . . . . . . . . . . . . . . . 11
2.8 Registered trademarks . . . . . . . . . . . . . . . . . . . . . . 11
3 Installation . . . . . . . . . . . . . . . . . . . . . 12
3.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Installation variants . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 Installation conditions . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.5 Installation hint for FMU 40/41 . . . . . . . . . . . . . . 20
3.6 Turn housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.7 Installation check . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 Cable specifications Foundation Fieldbus . . . . . . . . 23
4.4 Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.5 Recommended connection . . . . . . . . . . . . . . . . . . 24
4.6 Checking the connection . . . . . . . . . . . . . . . . . . . . 24
5 Operation . . . . . . . . . . . . . . . . . . . . . . 25
5.1 Display and operating elements . . . . . . . . . . . . . . . 25
5.2 Function codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3 Foundation Fieldbus interface . . . . . . . . . . . . . . . . 28
5.4 Operation using the on-site display VU 331 . . . . . . 44
5.5 Lock/unlock configuration . . . . . . . . . . . . . . . . . . 45
5.6 Resetting the customer parameters . . . . . . . . . . . . . 45
5.7 Resetting an interference echo suppression (tank map)
46
6 Commissioning. . . . . . . . . . . . . . . . . . 47
6.1 Power up instrument . . . . . . . . . . . . . . . . . . . . . . . 47
6.2 Basic calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3 Envelope curve . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7 Troubleshooting . . . . . . . . . . . . . . . . . 57
7.1 System error messages . . . . . . . . . . . . . . . . . . . . . . 57
7.2 Application errors . . . . . . . . . . . . . . . . . . . . . . . . . 59
8 Maintenance and repairs . . . . . . . . . . . 61
8.1 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 61
8.2 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
8.3 Repairs to Ex-approved devices . . . . . . . . . . . . . . . 61
8.4 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
8.5 Spare parts (housing type F12) . . . . . . . . . . . . . . . . 62
8.6 Spare parts (housing type T12) . . . . . . . . . . . . . . . . 65
8.7 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
8.8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
8.9 Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
8.10 Contact addresses of Endress+Hauser . . . . . . . . . . . 68
9 Accessories . . . . . . . . . . . . . . . . . . . . . 69
9.1 Weather protection cover . . . . . . . . . . . . . . . . . . . . 69
9.2 Installation bracket for FMU 40/41 . . . . . . . . . . . . 69
9.3 Adapter flange for FMU 40 / FMU 41 . . . . . . . . . . 70
9.4 Cantilever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.5 Mounting Frame . . . . . . . . . . . . . . . . . . . . . . . . . . 72
9.6 Wall Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
9.7 Mounting bracket for FMU 43 . . . . . . . . . . . . . . . . 73
9.8 Service Interface FXA193 . . . . . . . . . . . . . . . . . . . . 73
9.9 Remote display FHX40 . . . . . . . . . . . . . . . . . . . . . . 74
10 Technical Data. . . . . . . . . . . . . . . . . . . 75
10.1 Technical data at a glance . . . . . . . . . . . . . . . . . . . 75
11 Appendix. . . . . . . . . . . . . . . . . . . . . . . 78
11.1 Operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.2 Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . 80
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Safety instructions Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
4
1 Safety instructions
1.1 Designated use
The Prosonic M is a compact measuring device for continuous, non-contact level measurement.
Depending on the sensor, the measuring range is up to 15m in fluids and up to 7m in bulk solids.
By using the linearisation function, the Prosonic M can also be used for flow measurements in open
channels and measuring weirs.
1.2 Installation, commissioning, operation
The Prosonic M is fail-safe and is constructed to the state-of-the-art. It meets the appropriate
standards and EC directives. However, if you use it improperly or other than for its designated use,
it may pose application-specific hazards, e.g. product overflow due to incorrect installation or
configuration. Installation, electrical connection, start-up, operation and maintenance of the
measuring device must therefore be carried out exclusively by trained specialists authorised by the
system operator. Technical personnel must have read and understood these operating instructions
and must adhere to them. You may only undertake modifications or repair work to the device when
it is expressly permitted by the operating instructions.
1.3 Hazardous area
Measuring systems for use in hazardous environments are accompanied by separate "Ex
documentation", which is an integral part of this Operating Manual. Strict compliance with the
installation instructions and ratings as stated in this supplementary documentation is mandatory.
• Ensure that all personnel are suitably qualified.
• Observe the specifications in the certificate as well as national and local standards and regulations.

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Safety instructions
5
1.4 Notes on safety conventions and symbols
In order to highlight safety-relevant or alternative operating procedures in the manual, the following
conventions have been used, each indicated by a corresponding symbol in the margin.
Safety conventions
#Warning!
A warning highlights actions or procedures which, if not performed correctly, will lead to personal
injury, a safety hazard or destruction of the instrument
"Caution!
Caution highlights actions or procedures which, if not performed correctly, may lead to personal
injury or incorrect functioning of the instrument
!Note!
A note highlights actions or procedures which, if not performed correctly, may indirectly affect
operation or may lead to an instrument response which is not planned
Explosion protection
0Device certified for use in explosion hazardous area
If the device has this symbol embossed on its name plate it can be installed in an explosion hazardous
area
-Explosion hazardous area
Symbol used in drawings to indicate explosion hazardous areas. Devices located in and wiring
entering areas with the designation “explosion hazardous areas” must conform with the stated type
of protection.
.Safe area (non-explosion hazardous area)
Symbol used in drawings to indicate, if necessary, non-explosion hazardous areas. Devices located in
safe areas still require a certificate if their outputs run into explosion hazardous areas
Electrical symbols
%Direct voltage
A terminal to which or from which a direct current or voltage may be applied or supplied
&Alternating voltage
A terminal to which or from which an alternating (sine-wave) current or voltage may be applied or
supplied
)Grounded terminal
A grounded terminal, which as far as the operator is concerned, is already grounded by means of an
earth grounding system
*Protective grounding (earth) terminal
A terminal which must be connected to earth ground prior to making any other connection to the
equipment
+Equipotential connection (earth bonding)
A connection made to the plant grounding system which may be of type e.g. neutral star or
equipotential line according to national or company practice
Temperature resistance of the connection cables
States, that the connection cables must be resistant to a temperature of at least 85 °C.
t >85°C

Identification Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
6
2 Identification
2.1 Nameplate
L00-FMU4xxxx-18-00-00-yy-001
1: Order Code; 2: Serial number; 3: Designation according to Directive 94/9/EC and designation of the type of protection
(only for certified device variants); 4: Reference to additional safety-relevant documentation (only for certified device
variants); 5: Communication variant and supply voltage (the appropriate option is highlighted)
Made in Germany
D-79689 Maulburg
Dat./Insp.:
Order Code:
IP68 / NEMA 6P
Ser.-No.:
90 … 253 V AC 4VA
10,5 …32 V DC 1W
14 … 36 V DC 0,8W
4 … 20 mA HART 2-wire
4-wire
Profibus PA
Foundation Fieldbus
ENDRESS+HAUSER
t >85°C
TA > 70°C :
D01345-B
if modification
see sep. label
X= Patents
PROSONIC-M
1
2
3
4
5

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Identification
7
2.2 Product structure FMU 40
Certificates
A Variant for non-hazardous area
1 ATEX II 1/2 G or II 2 G; EEX ia IIC T6
4 ATEX II 1/2 G or II 2 G; EEX d [ia] IIC T6
G ATEX II 3G EEx nA II T6
2 ATEX II 1/2D, Alu blind cover
5ATEXII1/3D
S FM IS Cl. I,II,III Div. 1 Gr. A-G / NI Cl. I Div. 2
T FM XP Cl. I,II,III Div. 1 Gr. A-G
U CSA IS Cl. I,II,III Div. 1 Gr. A-G / NI Cl. I Div. 2
V CSA XP Cl. I,II,III Div. 1 Gr. A-G
N CSA General Purpose
KTIISExiaIICT6
Y Special certificate
Process connection
R G 1½“ threadISO 228
N NPT 1½“ - 11,5 thread
YSpecialversion
Power supply/communication
B 2 wire, 4...20mA-loop/HART
H 4 wire, 10,5...32VDC / 4-20mA HART
G 4 wire, 90...253VAC / 4-20mA HART
D 2 wire, PROFIBUS PA
F 2 wire, Foundation Fieldbus
Y Special version
Display / on-site operation
1 Without LC display
2 With LC display VU 331 incl. on-site operation
3 Prepared for remote display FHX 40
9Specialversion
Housing
A Aluminium F12 housing coated to IP 68
C Aluminium T12 housing coated to IP 68; with separate terminal compartment
D Aluminium T12 housing coated to IP 68; with separate terminal compartment;
with overvoltage protection
9Specialversion
Screw union/entry
2 M20x1.5 screw union
3G1/2“entry
4 NPT 1/2“ entry
5 M12 PROFIBUS-PA plug-in connector
6 7/8" FF plug
9 Special version
FMU 40 - Product designation

Identification Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
8
2.3 Product structure FMU 41
Certificates
A Variant for non-hazardous area
1 ATEX II 1/2 G or II 2 G; EEX ia IIC T6
4 ATEX II 1/2 G or II 2 G; EEX d [ia] IIC T6
G ATEX II 3G EEx nA II T6
2 ATEX II 1/2D, Alu blind cover
5ATEXII1/3D
S FM IS Cl. I,II,III Div. 1 Gr. A-G / NI Cl. I Div. 2
T FM XP Cl. I,II,III Div. 1 Gr. A-G
U CSA IS Cl. I,II,III Div. 1 Gr. A-G / NI Cl. I Div. 2
V CSA XP Cl. I,II,III Div. 1 Gr. A-G
N CSA General Purpose
KTIISExiaIICT6
Y Special certificate
Process connection
R G 2“ threadISO 228
N NPT 2“ - 11,5 thread
YSpecialversion
Power supply/communication
B 2 wire, 4...20mA-loop/HART
H 4 wire, 10,5...32VDC / 4-20mA HART
G 4 wire, 90...253VAC / 4-20mA HART
D 2 wire, PROFIBUS PA
F 2 wire, Foundation Fieldbus
Y Special version
Display / on-site operation
1 Without LC display
2 With LC display VU 331 incl. on-site operation
3 Prepared for remote display FHX 40
9 Special version
Housing
A Aluminium F12 housing coated to IP 68
C Aluminium T12 housing coated to IP 68 with separate terminal compartment
D Aluminium T12 housing coated to IP 68; with separate terminal compartment;
with overvoltage protection
9Specialversion
Screw union/entry
2 M20x1.5 screw union
3G1/2“entry
4 NPT 1/2“ entry
5 M12 PROFIBUS-PA plug-in connector
6 7/8" FF plug
9 Special version
FMU 41 - Product designation

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Identification
9
2.4 Product structure FMU 42
Certificates
A Variant for non-hazardous area
1ATEXII1/2GEEXiaIICT6
4 ATEX II 1/2 G EEX d [ia] IIC T6
G ATEX II 3G EEx nA II T6 (in preparation)
S FM IS Cl. I,II,III Div. 1 Gr. A-G / NI Cl. I Div. 2
T FM XP Cl. I,II,III Div. 1 Gr. A-G
U CSA IS Cl. I,II,III Div. 1 Gr. A-G / NI Cl. I Div. 2
V CSA XP Cl. I,II,III Div. 1 Gr. A-G
N CSA General Purpose
K TIIS Ex ia II C T6 (in preparation)
Y Special certificate
Process connection
M mounting bracket FAU20
P DN80/ANSI 3"/JIS10K80, PP, Universal flange
Q DN80/ANSI 3"/JIS10K80, PVDF, Universal flange
S DN80/ANSI 3"/JIS10K80, 316L, Universal flange
T DN100/ANSI 4"/JIS16K100, PP, Universal flange
U DN100/ANSI 4"/JIS16K100, PVDF, Universal flange
V DN100/ANSI 4"/JIS16K100, 316L, Universal flange
YSpecialversion
Power supply/communication
B 2 wire, 4...20mA-loop/HART
H 4 wire, 10,5...32VDC / 4-20mA HART
G 4 wire, 90...253VAC / 4-20mA HART
D 2 wire, PROFIBUS PA
F 2 wire, Foundation Fieldbus
Y Special version
Display / on-site operation
1 Without LC display
2 With LC display VU 331 incl. on-site operation
3 Prepared for remote display FHX 40
9Specialversion
Housing
A Aluminium F12 housing coated to IP 68
C Aluminium T12 housing coated to IP 68, with separate terminal compartment
D Aluminium T 12 housing coated to IP 68, with separate terminal compartment; with
overvoltage protection
YSpecialversion
Gland/Entry
2M20x1.5gland
3G1/2“entry
4 NPT 1/2“ entry
5 M12 PROFIBUS-PA plug
6 7/8" FF plug
9 Special version
Sealing Sensor/Flange
2 VITON flat sealing
3 EPDM flat sealing
9specialversion
Additional options
A Additional options not selected
FMU 42 - Product designation

Identification Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
10
2.5 Product structure FMU 43
Certificates
A Variant for non-hazardous area
2 ATEX II 1/2 D or II 2 D, Aluminium Deckel
5 ATEX II 1/3 D or II 3 D, Sichtdeckel
M FM DIP Class II, III, Div. 1, Gr. E,F,G NI
N CSA General Purpose
P CSA DIP, Class II, III, Div. 1, Gr. E,F,G NI
Y Special version
Process connection/material
P Flange DN 100/ANSI 4"/JIS 16K100, PP (universal slip-on flange included)
S Flange DN 100/ANSI 4"/JIS 16K100, SS 316TI (universal slip-on flange included)
K Without slip-on flange/without mounting bracket (customer mounting equipment)
M With mounting bracket
YSpecialversion
Power supply/communication
H 4 wire, 10,5...32VDC / 4-20mA HART
G 4 wire, 90...253VAC / 4-20mA HART
D 2 wire, PROFIBUS PA
F 2 wire, Foundation Fieldbus
Y Special version
Display / on-site operation
1 Without LC display
2 With LC display VU 331 incl. on-site operation
3 Prepared for remote display FHX 40
9 Special version
Housing
A Aluminium F12 housing coated to IP 68
9Specialversion
Screw union/entry
2 M20x1.5 screw union
3G1/2“entry
4 NPT 1/2“ entry
5 M12 PROFIBUS-PA plug-in connector
6 7/8" FF plug
9 Special version
FMU 43 - Product designation

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Identification
11
2.6 Scope of delivery
2.6.1 Instrument and accessories
• Instrument according to the version ordered
• "ToF Tool - FieldTool Package" (2 CD-ROMs)
• for FMU 40/41 in the versions FMU 40 *R**** and FMU 41 *R****: counter nut (PC)
• for FMU 40/41: sealing ring (EPDM)
• for gland M20x1.5:
– 1 cable gland for 2-wire instruments
– 2 cable glands for 4-wire instruments
The cable glands are mounted on delivery.
2.6.2 Supplied documentation
Short instructions (KA 183F, in the instrument)
intended as a memory jogger for users who are familiar with the operating concept of
Endress+Hauser Time-of-Flight instruments.
Operating instructions (BA 239F, this booklet)
This describes the installation and commissioning of the Prosonic M. The operating menu includes
all the functions which are required for standard measurement tasks. Any additional functions are
not included.
Description of Instrument Functions (BA 240F)
contains a detailed description of all the functions of the Prosonic M. You can find this document
as a pdf file on the supplied ToF Tool - FieldTool CD-ROM 1.
Safety instructions
Additional safety instructions (XA, ZE, ZD) are supplied with certified device versions. Refer to the
nameplate for the names of the safety instructions that apply to your device version.
2.7 Certificates and approvals
CE mark, declaration of conformity
The device is designed to meet state-of-the-art safety requirements, has been tested and left the
factory in a condition in which it is safe to operate. The device complies with the applicable
standards and regulations as listed in the EC declaration of conformity and thus complies with the
statutory requirements of the EG directives. Endress+Hauser confirms the successful testing of the
device by affixing to it the CE mark.
2.8 Registered trademarks
ToF®
Registered trademark of the company Endress+Hauser GmbH+Co. KG, Maulburg, Germany
PulseMaster®
Registered trademark of the company Endress+Hauser GmbH+Co. KG, Maulburg, Germany
Foundation™ Fieldbus
Registered trademark of Fieldbus Foundation Austin, Texas, USA

Installation Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
12
3 Installation
3.1 Dimensions
L00-FMU4xxxx-06-00-00-en-003
65 78
Ø 129
ca. 86 78
85
85
65
Ø 129
162
150
68 94
~148
~83
22
FMU 40 FMU 41
Ø 39
Ø 50
~148
~87
22
85
2 x M8
65 78
Ø 129
~86
150
~248
11
119
2
25
120
~123
25
ENDRESS+HAUSER
Prosonic M ENDRESS+HAUSER
Prosonic M
ENDRESS+HAUSER
Prosonic M
ENDRESS+HAUSER
Prosonic M
40 40
32
158
Ø 230
~ 110
Ø 70
ENDRESS+HAUSER
Prosonic M
F12/
T12
75
30
119
M8
F12
105
75
~ 85
89
F12 housing T12 housing
FMU 43 with slip-on flange
FMU 43 with mounting bracket
60 AF
G2”
2 NPT
G1½”
1½ NPT
60 AF
ANSI 4” DN 100
Alternatively, a separate flange can be used.
Mounting bracket for FMU 42/43
FMU 42 with universal flange
Flange:
DN80/ANSI3"/JIS10K80
DN100/ANSI4"/JIS16K100
suitable for PN16
acc. to DIN/EN 1092 part1
FMU 42 with mounting bracket

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Installation
13
3.2 Installation variants
3.2.1 Installation variants FMU 40, FMU 41
L00-FMU4xxxx-17-00-00-en-002
For installation bracket or adapter flange s. chapter "Accessories".
ENDRESS+HAUSER
ProsonicM
Installation with sleeveInstallation with counter nut
Installation with installation bracket
counter nut (PC)
supplied
for G 1½” and
G 2” instruments
adapter flange
sensor nozzle
Sealing ring
(EPDM)
supplied
Installation with adapter flange
Sealing ring
(EPDM)
supplied

Installation Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
14
3.2.2 Installation variants FMU 42
L00-FMU42xxxx-17-00-00-en-001
3.2.3 Installation variants FMU 43
L00-FMU43xxxx-17-00-00-en-001
ENDRESS+HAUSER
Prosonic M
Installation with universal flange
Flange:
DN80/ANSI3"/JIS10K80
DN100/ANSI4"/JIS16K100
Installation with mounting bracket
ENDRESS+HAUSER
Prosonic M
-.
Zone 20
Installation with
mounting bracket
Installation with
universal slip-on flange (option)
slip-on flange
sensor
nozzle e.g.Zone 20

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Installation
15
3.3 Installation conditions
3.3.1 Installation conditions for level measurements
L00-FMU4xxxx-17-00-00-de-005
• Do not install the sensor in the middle of the tank (3). We recommend leaving a distance between
the sensor and the tank wall (1) measuring 1/6 of the tank diameter.
• Use a protective cover, in order to protect the device from direct sun or rain (2).
• Avoid measurements through the filling curtain (4).
• Make sure that equipment (5) such as limit switches, temperature sensors, etc. are not located
within the emitting angle α. In particular, symmetrical equipment (6) such as heating coils, baffles
etc. can influence measurement.
• Align the sensor so that it is vertical to the product surface (7).
• Never install two ultrasonic measuring devices in a tank, as the two signals may affect each other.
• To estimate the detection range, use the 3 dB emitting angle α.
3.3.2 Installation in narrow shafts
1
234
5
6
1/6D
7
D
r
α
L
Sensor αLmax rmax
FMU 40 11° 5 m 0,48 m
FMU 41 11° 8 m 0,77 m
FMU 42 9° 10 m 0,96 m
FMU 43 6° 15 m 0,79 m
In narrow shafts with strong interference
echoes, we recommend using an ultrasound
guide pipe (e.g. PE or PVC wastewater pipe)
with a minimum diameter of 100 mm.
Make sure that the pipe is not soiled by accumu-
lated dirt. If necessary, clean the pipe at regular
intervals.
L00-FMU4xxxx-17-00-00-en-010
ENDRESS+HAUSER
ProsonicM
ENDRESS+HAUSER
ProsonicM
ENDRESS+HAUSER
ProsonicM
ENDRESS+HAUSER
ProsonicM
venting
hole

Installation Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
16
3.3.3 Installation conditions for flow measurements
• Install the Prosonic M at the inflow side, as close above the maximum water level Hmax as possible
(take into account the blocking distance BD).
• Position the Prosonic M in the middle of the channel or weir.
• Align the sensor membrane parallel to the water surface.
• Keep to the installation distance of the channel or weir.
• You can enter the "Flow to Level" linearisation curve ("Q/h curve") using ToF Tool or manually
via the on-site display.
Example: Khafagi-Venturi flume
L00-FMU4xxxx-17-00-00-en-003
1 x b0
b0
BD
H
max
Khafagi - Venturi - flume direction of flow
inflow outflow
empty calibr.

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Installation
17
Example: Triangular weir
L00-FMU4xxxx-17-00-00-en-012
max
max
max
max
empty calibr.
(= full calibr.)
min. 3 H
H
min. 2 H
α
min. 2 H
BD

Installation Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
18
3.4 Measuring range
3.4.1 Blocking distance, Nozzle mounting
Install the Prosonic M at a height so that the blocking distance BD is not undershot, even at
maximum fill level. Use a pipe nozzle if you cannot maintain the blocking distance in any other way.
The interior of the nozzle must be smooth and may not contain any edges or welded joints. In
particular, there should be no burr on the inside of the tank side nozzle end. Note the specified limits
for nozzle diameter and length. To minimise disturbing factors, we recommend an angled socket
edge (ideally 45°).
L00-FMU4xxxx-17-00-00-en-004
BD: blocking distance; SD: safety distance; E: empty calibration; F: full calibration (span); D: nozzle diameter; L: nozzle
length
"Caution!
If the blocking distance is undershot, it may cause device malfunction.
F
E
BD
SD
L
D
FMU 40/41
L
D
FMU 43
L
D
FMU 42
Sensor BD Max. range
liquids
Max. range
bulk materials nozzle diameter max. nozzle length
FMU 40 0.25 m 5 m 2 m
50 mm ca. 80 mm
80 mm ca. 240 mm
100 mm ca. 300 mm
FMU 41 0.35 m 8 m 3.5 m
80 mm ca. 240 mm
100 mm ca. 300 mm
FMU 42 0.4 m 10 m 5 m
80 mm ca. 250 mm
100 mm ca. 300 mm
FMU 43 0.6 m 15 m 7 m min. 100 mm ca. 300 mm

Prosonic M FMU 40/41/42/43 with Foundation Fieldbus Installation
19
3.4.2 Safety distance
If the level rises to the safety distance SD, the device switches to warning or alarm status.
The size of SD can be set freely in the "Safety distance" (015) function.The "in safety distance"
(016) function defines how the device reacts if the level enters the safety distance.
There are three options:
•Warning: The device outputs an error message but continues measurement.
•Alarm: The device outputs an error message. The output signal assumes the value defined in the
"Output on alarm" (011) function (MAX, MIN, user-specific value or holds the last value). As
soon as the level drops below the safety distance, the device recommences measurement.
•Self holding: The device reacts in the same way as for an alarm. However, the alarm condition
continues after the level drops below the safety distance. The device only recommences
measurement when you cancel the alarm using the "Ackn. alarm" (017) function.
3.4.3 Range
The sensor range is dependent on the measuring conditions. Refer to Technical Information TI
365F/00/en for an estimation. The maximum range is shown in the above diagram (valid for good
conditions).
Sensor maximum range
FMU 40 5 m
FMU 41 8 m
FMU 42 10 m
FMU 43 15 m

Installation Prosonic M FMU 40/41/42/43 with Foundation Fieldbus
20
3.5 Installation hint for FMU 40/41
3.6 Turn housing
After mounting, the housing can be turned 350° in order to simplify access to the display and the
terminal compartment. Proceed as follows to turn the housing to the required position:
• Undo the fixing screws (1)
• Turn the housing (2) in the required direction
• Tighten up the fixing screws (1). Maximum torque 0.5 Nm.
• Loctite can be used for securing the screw.
L00-FMU4xxxx-17-00-00-en-013
3.7 Installation check
After installing the device, carry out the following checks:
• Is the device damaged (visual inspection)?
• Does the device correspond to the measuring point specifications for process temperature, process
pressure, ambient temperature, measuring range etc.
• If available: Are the measuring point number and labelling correct (visual inspection)?
• Is the measuring device sufficiently protected against precipitation and direct sunlight?
• Are the cable glands tightened correctly?
• After aligning the housing, check the process seal at the nozzle or flange.
Screw the Prosonic M at the screw-in piece
using an 60 AF spanner.
Maximum torque: 20 Nm.
L00-FMU4xxxx-17-00-00-en-009
60
AF 60
max torque
20 Nm
Caution!
Use only the screw-in
piece to screw in
the Prosonic M
F12 or T12 housing
1
1
22
F12 housing T12 housing
allen key
4 mm/0.1”
max. torque 0.5 Nm