Endress+Hauser Prosonic M FMU40 Technical specifications

KA01063F/00/EN/13.11
71145352
Brief Operating Instructions
Prosonic M FMU40/41/42/43/44
Ultrasonic Level Measurement
These Instructions are Brief Operating Instructions; they do not replace the
Operating Instructions included in the scope of supply.
For detailed information, refer to the Operating Instructions and other
documentation on the CD-ROM provided or visit "www.endress.com/
deviceviewer".

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Table of contents
1 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Installation, commissioning and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Operational safety and process safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Safety icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Incoming acceptance, storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Installation conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Installation hint for FMU40/41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6 Turn housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.7 Installation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Wiring in F12/F23 housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Wiring in T12 housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Wiring with M12 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4 Pin assignment of the M12 plug connector (PROFIBUS PA plug) . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5 Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.6 Cable specification PROFIBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.7 Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.8 Recommended connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.9 Checking the connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1 Operating options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 General structure of the operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.3 Display and operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.4 Device address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2 Switching on the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3 Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Prosonic M PROFIBUS PA Safety instructions
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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 20 m (66 ft) in fluids and up to 10 m
(33 ft) 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 and operation
• The device must only be installed, connected, commissioned and maintained by qualified and
authorized specialists (e.g. electrical technicians) in full compliance with the instructions in
this manual, the applicable norms, legal regulations and certificates (depending on the
application).
• The specialist must have read and understood this manual and must follow the instructions it
contains. If you are unclear on anything in these Brief Operating Instructions, you must read
the Operating Instructions (on the CD-ROM). The Operating Instructions provide detailed
information on the device/measuring system.
• The device may only be modified or repaired if such work is expressly permitted in the
Operating Instructions (→ see CD-ROM).
• If faults cannot be rectified, the device must be taken out of service and secured against
unintentional commissioning.
• Do not operate damaged devices. Mark them as defective.
1.3 Operational safety and process safety
• Alternative monitoring measures must be taken to ensure operational safety and process safety
during confiugration, testing and maintenance work on the device.
• The device is safely built and tested according to state-of-the-art technology and has left the
factory in perfect condition as regards technical safety. The applicable regulations and
European standards have been taken into account.
• Pay particular attention to the technical data on the nameplate.
• If the device is to be installed in an explosion hazardous area, then the specifications in the
certificate as well as all national and local regulations must be observed. The device is
accompanied by separate "Ex documentation", which is an integral part of this Operating
Instructions. The installation regulations, connection values and Safety Instructions listed in
this Ex document must be observed. The documentation number of the related Safety
Instructions is also indicated.
• If using devices for applications with safety integrity level, the separate manual on functional
safety must be observed thoroughly (→ see CD-ROM).

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1.4 Return
Follow the instructions on returning the device as outlined in the Operating Instructions on the
CD-ROM provided.
1.5 Safety icons
2 Mounting
2.1 Incoming acceptance, storage
2.1.1 Incoming acceptance
Check the packing and contents for any signs of damage. Check the shipment, make sure
nothing is missing and that the scope of supply matches your order.
2.1.2 Storage
Pack the measuring instrument so that is protected against impacts for storage and transport. The
original packing material provides the optimum protection for this.
The permissible storage temperature is -40 °C to +80 °C (-40 °F to +176 °F).
Symbol Meaning
#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.

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2.2 Installation
2.2.1 Installation variants FMU40, FMU41
L00-FMU4xxxx-17-00-00-yy-002
AInstallation with counter nut
1 Counter nut (PC) supplied for G1½ and G2 instruments
BInstallation with sleeve
1 Sealing ring (EPDM) supplied
CInstallation with installation bracket
DInstallation with screw in flange
1 Sealing ring (EPDM) supplied
2 Nozzle
3Sensor
4 Screw in flange
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1
2
3
4

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2.2.2 Installation variants FMU42, FMU44
L00-FMU42xxxx-17-00-00-xx-002
AInstallation with universal flansch
BInstallation with mounting bracket
2.2.3 Installation variants FMU43
L00-FMU43xxxx-17-00-00-x-002
AInstallation with universal slip-on flange (option)
1Sensor
2 Nozzle
3 Slip-on flange
BInstallation with mounting bracket
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2.3 Installation conditions
2.3.1 Installation conditions for level measurements
L00-FMU4xxxx-17-00-00-yy-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) see the
Technical Information TI00365F, Chapter "Accessories" on the CD-ROM provided.
• 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.
Sensor αLmax rmax
FMU40 11° 5 m (16 ft) 0.48 m (1.6 ft)
FMU41 11° 8 m (26 ft) 0.77 m (2.5 ft)
FMU42 9° 10 m (33 ft) 0.79 m (2.6 ft)
FMU43 6° 15 m (49 ft) 0.79 m (2.6 ft)
FMU44 11 ° 20 m (66 ft) 1.93 m (6.3 ft)
1
234
5
6
1/6D
7
D
r
a
L

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2.3.2 Installation in narrow shafts
2.3.3 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 operating program
FieldCare or manually via the on-site display.
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
(3.94 in).
Make sure that the pipe is not soiled by
accumulated dirt. If necessary, clean
the pipe at regular intervals.
L00-FMU4xxxx-17-00-00-yy-010
1Ventinghole
1

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Example: Khafagi-Venturi flume
L00-FMU4xxxx-17-00-00-xx-003
A Khafagi-Venturi flume
BInflow
C Outflow
BD Blocking distance
E Empty calibration
F Full calibration
V Direction of flow
1xb
0
b0
BD
A
E
BC
V
Hmax =F

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Example: Triangular weir
L00-FMU4xxxx-17-00-00-xx-012
BD Blocking distance
E Empty calibration
F Full calibration
2.4 Measuring range
2.4.1 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°).
max
max
max
max (= F)
min. 3 H
H
min. 2 H
a
min. 2 H
BD
E

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L00-FMU4KAxx-17-00-00-yy-004
BD Blocking distance F Full calibration (span)
SD Safety distance D Nozzle diameter
E Empty calibration L Nozzle length
"Caution!
If the blocking distance is undershot, it may cause device malfunction.
F
E
BD
SD
L
D
FMU40/41
L
D
FMU43
L
D
FMU42/44
Maximum nozzle length [mm (in)]
Nozzle diameter FMU40 FMU41 FMU42 FMU43 FMU44
DN50/2" 80 (3.15)
DN80/3" 240 (9.45) 240 (9.45) 250 (9.84)
DN100/4" 300 (11.8) 300 (11.8) 300 (11.8) 300 (11.8)
DN150/6" 400 (15.7) 400 (15.7) 400 (15.7) 300 (11.8) 400 (15.7)
DN200/8" 400 (15.7) 400 (15.7) 400 (15.7) 300 (11.8) 400 (15.7)
DN250/10" 400 (15.7) 400 (15.7) 400 (15.7) 300 (11.8) 400 (15.7)
DN300/12" 400 (15.7) 400 (15.7) 400 (15.7) 300 (11.8) 400 (15.7)
Sensor characteristics
Emitting angle α11° 11° 9° 6° 11°
Blocking distance [m (ft)] 0.25 (0.8) 0.35 (1.1) 0.4 (1.3) 0.6 (2.0) 0.5 (1.6)
Max. range [m (ft)]
in liquids
5 (16.0) 8 (26.0) 10 (33.0) 15 (49.0) 20 (66.0)
Max. range [m (ft)]
in solids
2 (6.6) 3.5 (11.0) 5 (16.0) 7 (23.0) 10 (33.0)

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2.4.2 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.
2.4.3 Range
The sensor range is dependent on the measuring conditions. Refer to Technical Information
TI00365F/00/EN for an estimation. The maximum range is shown in the above diagram (valid
for good conditions).
Sensor maximum range [mm (inch)]
FMU40 5 (16)
FMU41 8 (26)
FMU42 10 (33)
FMU43 15 (49)
FMU44 20 (66)

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2.5 Installation hint for FMU40/41
"Caution!
Use only the screw-in piece to screw in the Prosonic M.
L00-FMU4xxxx-17-00-00-yy-009
1Housing F12 or T12
2 60 AF, max. torque 20 Nm (14.75 lbf ft)
60
1
2

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2.6 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) (allen key 4 mm (0.16 in))
• Turn the housing (2) in the required direction
• Tighten up the fixing screws (1). Maximum torque 0.5 Nm (0.36 lbf ft).
• Loctite can be used for securing the screw.
L00-FMU4xxxx-17-00-00-yy-013
AHousing F12
BHousing T12
2.7 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.
AB
1.
2.
1.
2.

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3 Wiring
#Warning!
When using the measuring device in hazardous areas, installation must comply with the
corresponding national standards and regulations and the Safety Instructions or Installation or
Control Drawings.
"Caution!
Before connection please note the following:
• The power supply must be identical to the data on the nameplate.
• Switch off power supply before connecting up the instrument.
• Connect equipotential bonding to transmitter ground terminal before connecting up the
instrument (→ä18 "Recommended connection").
3.1 Wiring in F12/F23 housing
1. Unscrew housing cover (1).
2. Remove any display (2) if fitted.
3. Remove cover plate from terminal
compartment (3).
4. Pull out terminal module (4) slightly
using "pulling loop".
5. Insert cable (5) through gland (6).
6. Make connection (see terminal
assignment).
7. Re-insert terminal module (4).
8. Tighten cable gland (6).
Max.torque 10...12 Nm
(7.37...8.85 lbf ft)!
9. Tighten screws on cover plate (3).
10. Insert display (2) if fitted.
11. Screw on housing cover (1).
12. Switch on power supply.
L00-FMxxxxxx-04-00-00-xx-033
1
12 34
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3.2 Wiring in T12 housing
3.3 Wiring with M12 connector
1. Unscrew housing cover (1).
2. Insert cable (2) through gland (3).
3. Connect cable screen to the grounding
terminal (4) within the terminal
compartment.
4. Make connection (see terminal
assignment).
5. Tighten cable gland (6).
Max.torque 10...12 Nm
(7.37...8.85 lbf ft)!
6. Screw on housing cover (1).
7. Switch on power supply.
L00-FMxxxxxx-04-00-00-xx-032
3
2
12 34
4
1
1. Insert plug (1) into bushing (2).
2. Screw firmly.
3. Ground the device according to the
desired safety concept.
L00-FMP4xxxx-04-00-00-xx-002
1
2

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3.4 Pin assignment of the M12 plug connector (PROFIBUS PA plug)
3.5 Terminal assignment
L00-FMxxxxxx-04-00-00-en-012
3.6 Cable specification PROFIBUS
Twisted, screened pairs must be used. The following cable types can be used, for example:
• Loop-resistance (DC): 15…150 Ω//km
• Specific inductance: 0.4…1 mH/km
• Specific capacitance: 80…200 nF/km
L00-FMxxxxxx-04-00-00-yy-016
Pin Meaning
1Signal+
2Notconnected
3Signal-
4Ground
1
43
2
+
–
nc
34 12
+–
T-Box
PROFIBUS PA
plant
ground

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3.7 Supply voltage
The following values are the voltages across the terminals directly at the instrument:
• Minimum terminal voltage: 9 V
• Maximum terminal voltage: 32 V
The current consumption is approx. 13 mA for the range of voltages given above.
3.8 Recommended connection
L00-FMU4xxxx-17-00-00-yy-014
1 External ground terminal of the transmitter
For maximum EMC protection please observe the following points:
• As the metal housing of the Prosonic M is isolated from the tank by the plastic sensor, a
low-impedance connection between the housing and tank/bracket/flange should be installed
in order to ensure electromagnetic compatibility (EMC).
For optimum EMC the connection should be as short as possible. Ideally, a ground strap
should be used.
• The external ground terminal on the transmitter must be connected to ground.
• The continuity of the cable screening between tapping points must be ensured.
• If potential equalisation is present between the individual grounding points, ground the
screening at each cable end or connect it to the device housing (as short as possible).
• If there are large differences in potential between grounding points, the grounding should run
via a capacitor that is suitable for high frequency use (e.g. ceramic 10 nF/250 V&).
"Caution!
Applications, which are subject to the explosion prevention, permit only under special
conditions the repeated grounding of the protective screen, see to EN 60 079-14.
1
1

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!Note!
For further information on the cable specifications, see Operating Instructions
BA00034S/04/ENGuidelines for planning and commissioning PROFIBUS DP/PA", PNO
Guideline 2.092 "PROFIBUS PA User and Installation Guideline" and IEC61158-2 (MBP).
3.9 Checking the connection
After wiring the device, carry out the following checks:
• Are the terminals correctly assigned?
• Is the cable gland tight?
• Is the M12 connector screwed tight?
• Is the housing cover fully screwed on?
• If power supply available: Does a display appear on the display module?

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4 Operation
4.1 Operating options
• On-site operation via the display and operating module
• Remote operation
– Via the service interface with the Commubox FXA291 and the operating program FieldCare
– Via PROFIBUS DP with the PROFIcard, PROFIboard or PROFIusb
– Acyclic data exchangeh, SLOT index tables
4.2 General structure of the operating menu
The operating menu is made up of two levels:
•Function groups (00, 01, 03, …, 0C, 0D):
The individual operating options of the instrument are split up roughly into different function
groups. The function groups that are available include, e.g.: "basic setup", "safety
settings..", "output", "display", etc.
•Functions (001, 002, 003, …, 0D8, 0D9):
Each function group consists of one or more functions. The functions perform the actual
operation or parameterisation of the instrument. Numerical values can be entered here and
parameters can be selected and saved. The available functions of the “basic setup"(00)
function group include, e.g..: "tank shape"(002), "medium property" (003), "process
cond."(004), "empty calibr." (005), etc.
If, for example, the application of the instrument is to be changed, carry out the following
procedure:
1. Select the “basic setup"(00) function group
2. Select the "tank shape"(002) function (where the existing tank shape is selected).
4.2.1 Identifying the functions
For simple orientation within the function menus, for each function a position is shown on the
display.
empty calibr. 005
6.500 m
distance membrane
to min. level
⇒
1 Function group
2Function
2
005
1