Endress+Hauser Prosonic M FMU42 User manual

Products Solutions Services
Operating Instructions
Prosonic M FMU42
HART
Ultrasonic measuring technology
BA01963F/00/EN/01.22-00
71574096
2022-04-04

Prosonic M FMU42 HART
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

Prosonic M FMU42 HART Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Document function ..................... 4
1.2 Symbols ............................. 4
1.3 Supplementary documentation ............. 5
1.4 Registered trademarks ................... 5
2 Basic safety instructions ............ 6
2.1 Requirements for the personnel ............ 6
2.2 Intended use .......................... 6
2.3 Workplace safety ....................... 6
2.4 Operational safety ...................... 6
2.5 Product safety ......................... 6
2.6 IT security ............................ 7
3 Product description ................. 7
3.1 Product design ......................... 7
4 Incoming acceptance and product
identification ....................... 8
4.1 Incoming acceptance .................... 8
4.2 Product identification .................... 8
4.3 Manufacturer address ................... 8
4.4 Storage and transport ................... 9
5 Mounting .......................... 9
5.1 Mounting requirements ................. 9
5.2 Measuring range ...................... 13
5.3 Post-mounting check ................... 15
6 Electrical connection .............. 15
6.1 Connecting requirements ................ 15
6.2 Connecting the measuring device .......... 16
6.3 Terminal assignment ................... 17
6.4 Supply voltage ....................... 18
6.5 Potential equalization .................. 18
6.6 Post-connection check .................. 19
7 Operation options ................. 19
7.1 Overview of operation options ............ 19
7.2 Structure and function of the operating
menu .............................. 19
7.3 Access to the operating menu via the local
display ............................. 20
7.4 Access to the operating menu via the
operating tool ........................ 22
7.5 Locking or enabling parameter configuration .23
8 System integration ................ 23
8.1 4 to 20 mA output with HART protocol ...... 23
9 Commissioning .................... 25
9.1 Function check ....................... 25
9.2 Switching on the measuring device ......... 25
9.3 Connecting via FieldCare ................ 26
9.4 Configuring the measuring device .......... 26
9.5 Displaying the envelope curve ............ 31
10 Diagnostics and troubleshooting ... 34
10.1 Present error ......................... 34
10.2 Previous error ........................ 34
10.3 Types of error ........................ 34
10.4 Diagnostics list ....................... 34
10.5 Application errors ..................... 35
10.6 Resetting the measuring device ........... 38
10.7 Firmware history ..................... 39
11 Maintenance ...................... 39
11.1 Maintenance schedule ................. 39
11.2 Maintenance tasks .................... 39
12 Repair ............................ 40
12.1 General notes ........................ 40
12.2 Endress+Hauser services ................ 40
12.3 Disposal ............................ 41
13 Accessories ....................... 41
13.1 Device-specific accessories ............... 41
13.2 Communication-specific accessories ........ 42
14 Technical data .................... 44
14.1 Input ............................... 44
14.2 Output signal ......................... 45
14.3 Power supply ......................... 45
14.4 Performance characteristics .............. 46
14.5 Environment ......................... 47
14.6 Process ............................. 47
15 Appendix ......................... 48
15.1 Overview of the operating menu ........... 48
Index .................................. 50

About this document Prosonic M FMU42 HART
4 Endress+Hauser
1 About this document
1.1 Document function
These Operating Instructions provide all of the information that is required in the various
phases of the life cycle of the device.
1.2 Symbols
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Electrical symbols
Ground connection
Grounded clamp, which is grounded via a grounding system.
Protective earth (PE)
Ground terminals, which must be grounded prior to establishing any other connections.
The ground terminals are located on the inside and outside of the device.
Temperature resistance of the connection cables
Minimum value for the temperature resistance of the connection cables
1.2.3 Symbols for certain types of information
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
1.
,
2.
,
3.
Series of steps
Result of an individual step

Prosonic M FMU42 HART About this document
Endress+Hauser 5
1.2.4 Symbols in graphics
1.
,
2.
,
3.
Series of steps
1, 2, 3 ... Item numbers
1.3 Supplementary documentation
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•W@M Device Viewer (www.endress.com/deviceviewer): Enter serial number from
nameplate
•Endress+Hauser Operations app: Enter serial number from nameplate.
1.3.1 Standard documentation
Technical Information (TI)
Planning aid ‒ contains technical data for planning and ordering information.
Operating Instructions (BA)
Installation and initial commissioning ‒ contains all the functions in the operating menu
that are needed for a normal measuring task. Functions beyond this scope are not
included.
Brief Operating Instructions (KA)
Quick guide to obtaining the first measured value ‒ includes all essential information from
incoming acceptance to electrical connection. Another "Brief Operating Instructions"
document is located under the housing cover of the device. The most important functions
of the menu are summarized in this document.
Description of Device Parameters (BA)
Reference manual for parameters ‒ contains a detailed explanation of each individual
parameter in the operating menu. The description helps individuals who perform specific
configurations throughout the entire operating life of the device.
1.3.2 Supplementary device-dependent documentation
Depending on the device version ordered, additional documentation or documents are
provided. Always comply strictly with the instructions in the relevant supplementary
documentation. The supplementary documentation is an integral part of the device
documentation.
Examples: ATEX, NEPSI, INMETRO, Control or Installation Drawings for FM-, CSA- and
TIIS-certified device versions.
The relevant safety instructions are included with all certified device versions. If using the
device in a hazardous area, all the specifications contained in the safety instructions must
be complied with.
1.4 Registered trademarks
HART®
Registered trademark of the FieldComm Group, Austin, Texas, USA

Basic safety instructions Prosonic M FMU42 HART
6 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel must fulfill the following requirements to carry out their tasks, e. g.
commissioning and maintenance:
‣Trained specialists must have a qualification that is relevant to the specific function and
task.
‣Must be authorized by the plant owner/operator.
‣Must be familiar with national regulations.
‣Must have read and understood the instructions in the manual and supplementary
documentation.
‣Personnel must follow instructions and comply with general policies.
2.2 Intended use
Compact measuring device for continuous, non-contact level measurement. The measuring
range is up to 10 m (33 ft) for liquids and up to 5 m (16 ft) for bulk solids. Flow
measurements can be carried out in open flumes and weirs with the linearization function.
2.3 Workplace safety
For work on and with the device:
‣Wear the required protective equipment according to federal/national regulations.
2.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for ensuring failure-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability:
‣Only perform repair work on the device if this is expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
2.5 Product safety
This device has been constructed and tested to state-of-the-art operational safety
standards and in accordance with good engineering practice. The device left the factory in
a safe operating condition.
2.5.1 CE mark
The device meets the legal requirements of the applicable EU Directives. These are listed in
the corresponding EU Declaration of Conformity along with the standards applied.
Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.

Prosonic M FMU42 HART Product description
Endress+Hauser 7
2.5.2 EAC conformity
The device meets the legal requirements of the applicable EAC Directives. These are listed
in the corresponding EAC Declaration of Conformity along with the standards applied.
Endress+Hauser confirms successful testing of the device by affixing to it the EAC mark.
2.6 IT security
We only provide a warranty if the device is installed and used as described in the
Operating Instructions.
Provide additional protection for the device and data transfer to/from the device
‣IT security measures defined in the plant owner/operator's own security policy must be
implemented by plant owners/operators themselves.
3 Product description
3.1 Product design
1
1
3
3
2
2
A0038203
 1 Product design
1 T12 or F12 housing with cover
2 Sensor part with process connection
3 Flange
1
2
3
4
A0038334
 2 F12 housing, electronic insert and connection compartment
1 Housing cover
2 Local display
3 Connection compartment
4 Cable gland

Incoming acceptance and product identification Prosonic M FMU42 HART
8 Endress+Hauser
1
2
3
4
5
A0038335
 3 T12 housing, electronic insert and connection compartment
1 Housing cover
2 Local display
3 Cable gland
4 Connection compartment
5 Cover for connection compartment
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
Check the following during goods acceptance:
 Are the order codes on the delivery note and the product sticker identical?
 Are the goods undamaged?
 Do the nameplate data match the ordering information on the delivery note?
 If necessary (see nameplate), are the Safety Instructions, e. g. XA, provided?
If one of these conditions is not satisfied, contact your Sales Center.
4.2 Product identification
The device can be identified in the following ways:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
‣Enter serial number from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer)
 All of the information on the measuring device and on the scope of the technical
documentation pertaining to the device is displayed.
‣Enter the serial number from the nameplate in the Endress+Hauser Operations app or
scan the 2-D matrix code on the nameplate with the camera
 All of the information on the measuring device and on the scope of the technical
documentation pertaining to the device is displayed.
4.3 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany

Prosonic M FMU42 HART Mounting
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Place of manufacture: See nameplate.
4.4 Storage and transport
• Pack the measuring device so that it is protected against impact.
The original packaging offers the best protection
• Permitted storage temperature: –40 to +80 °C (–40 to 176 °F)
4.4.1 Transporting the product to the measuring point
LCAUTION
The housing or flange can be damaged.
Risk of injury!
‣Transport the measuring device to the measuring point in its original packaging or by
the process connection.
‣Always secure lifting equipment (belts, lugs, etc.) at the process connection, while
paying attention to the center of gravity of the device to ensure that the device does not
tilt or slip.
‣Follow the safety instructions and transport conditions for devices weighing more than
18 kg (39.6 lb)(IEC 61010).
5 Mounting
5.1 Mounting requirements
5.1.1 Installation conditions for the sensor for level measurements
34
15
6D
r
7
16
/!
2
!
A0038210
 4 Installation requirements
1 Distance to the vessel wall: ¹⁄₆ of the vessel diameter
2 Use of a weather protection cover; protection from direct sunlight or rain
3 Do not install the sensor in the middle of the vessel
4 Avoid measurements through the filling curtain
5 Do not install point level switches or temperature sensors within the beam angle
6 Symmetrical internal fixtures, e.g. heating coils and baffles, negatively impact the measurement
7 Align the sensor so that it is perpendicular to the product surface

Mounting Prosonic M FMU42 HART
10 Endress+Hauser
• Only mount one device per vessel: signals from multiple devices mutually affect one
another
• Determine the detection range using the 3-dB beam angle α
5.1.2 Beam angle
D
W
a
a
2
W = 2 · D · tan
A0038221
 5 Relationship between beam angle α, distance D and beamwidth diameter W
Beamwidth diameter W as a function of beam angle α and distance D.
• α: 9 °
• Dmax: 10 m (33 ft)
• rmax: 0.79 m (2.6 ft)
The angle α is defined as the beam angle. At α, the energy density of the ultrasonic
wave reaches half the value of the maximum energy density. Ultrasonic waves are
also emitted outside the signal beam and can be reflected off interfering installations.
5.1.3 Narrow shafts, uneven shaft walls
1
A0038233
 6 Installation in narrow shafts with very uneven shaft walls
1 Venting hole
Strong interference echoes can occur in narrow shafts and in uneven conditions.
‣Use an ultrasound guide pipe with a minimum diameter of 100 mm (3.94 in), e.g. PE
or PVC wastewater pipe
Avoid the accumulation of dirt in the pipe.
‣Clean the pipe regularly.

Prosonic M FMU42 HART Mounting
Endress+Hauser 11
5.1.4 Installation conditions for the sensor for flow measurements
• Mount the measuring device on the upstream side immediately above the maximum
upper water level Hmax
• Take the blocking distance into account
• Position the measuring device in the center of the flume or weir
• Align the sensor membrane so that it is parallel to the surface of the water
• Observe the installation clearance of the flume or weir
• Enter the "flow - level" ("Q/h curve") linearization curve via the FieldCare operating
program or manually via the local display
1 x b
b
BD
A
E
B C
V
Hmax = F
0
0
A0038222
 7 Khafagi-Venturi flume (example)
A Khafagi-Venturi flume
B Upstream side
C Downstream side
BD Blocking distance of the sensor
E Empty calibration (enter during commissioning)
Hmax Maximum upstream level
V Flow
b0Width of Khafagi-Venturi flume

Mounting Prosonic M FMU42 HART
12 Endress+Hauser
BD
E
≥ 2 Hmax
≥ 2 Hmax
a
Hmax (= F)
≥3 Hmax
A0038223
 8 Triangular weir (example)
BD Blocking distance of the sensor
E Empty calibration (enter during commissioning)
F Full calibration
Hmax Maximum upstream level
5.1.5 Mounting examples
AB
-.
A0038822
 9 Mounting examples
A Mounting with universal flange (e.g. hazardous area, Zone 20)
B Mounting with mounting bracket (non-hazardous area, Zone 20)

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5.1.6 Turning the housing
1.
2.
4 mm
A0037777
 10 Turning the F12 or T12 housing, (F12 housing in example)
1. Loosen the securing screw.
2. Rotate the housing in the desired direction, maximum 350 °.
3. Tighten the securing screw, maximum torque 0.5 Nm (0.36 lbf ft).
4. Lock the securing screw; use a glue specifically for metal.
5.2 Measuring range
5.2.1 Sensor features
• Beam angle (α): 9 °
• Blocking distance (BD): 0.4 m (1.3 ft)
• Maximum range for liquids: 10 m (33 ft)
• Maximum range for bulk solids: 5 m (16 ft)
5.2.2 Blocking distance
NOTICE
If the blocking distance is undershot, this may cause a device malfunction.
‣Mount the measuring device high enough that the blocking distance is not reached at
the maximum fill level.
‣Define the safety distance (SD).
‣If the level enters the safety distance SD, the device generates a warning or alarm.
‣The measuring span F may not project into the blocking distance BD. Level echoes
within the blocking distance cannot be evaluated due to the transient response of the
sensor.

Mounting Prosonic M FMU42 HART
14 Endress+Hauser
F
E
BD
SD
A0038238
 11 Parameter for the correct operation of the device
BD Blocking distance
SD Safety distance
E Empty calibration
F Measuring span
Mounting nozzle
L
D
A0038371
 12 Definition of nozzle length L and nozzle diameter D
D Nozzle diameter
L Nozzle length
Conditions
• Smooth interior surfaces in pipe nozzle
Remove any edges or welded joints and burr on the inside of the tank side nozzle end
• To minimize disturbing factors: nozzle with an angled socket edge (ideally 45 °)
• Observe maximum nozzle length
Maximum nozzle length
Diameter specifications with maximum nozzle length
• DN80/3": 250 mm (9.84 in)
• DN100/4": 300 mm (11.8 in)
• DN150/6": 400 mm (15.7 in)
• DN200/8": 400 mm (15.7 in)
• DN250/10": 400 mm (15.7 in)
• DN300/12": 400 mm (15.7 in)

Prosonic M FMU42 HART Electrical connection
Endress+Hauser 15
5.2.3 Safety distance
The device generates a warning or alarm if the level reaches the safety distance (SD). The
SD size can be set as required by the user in the Safety distance (015) function.
In the In safety dist. (016) function define how the device should react if the safety
distance is undershot.
Options and meaning
•Warning
The measuring device displays an error message but keeps measuring.
•Alarm
The measuring device displays an error message.
The output signal in the Output on alarm (011) function displays the defined value.
As soon as the level drops below the safety distance, the device resumes measuring.
•Self holding
The measuring device responds in the same way as for an alarm.
However, the alarm condition is maintained even if the level drops below the safety
distance again.
The device only starts measuring again when the user cancels the alarm using the
Acknowledge alarm (017) function.
5.3 Post-mounting check
 Is the device free from damage (visual inspection)?
 Does the measuring device comply with the measuring point specifications?
 After aligning the housing: is the process seal on the nozzle or flange free from
damage?
For example:
• Supply voltage
• Ambient temperature
• Process temperature
• Process pressure
• Ambient temperature range
• Measuring range
 Are the measuring point number and labeling correct (visual inspection)?
 Is the measuring device adequately protected against precipitation and direct sunlight?
6 Electrical connection
6.1 Connecting requirements
LWARNING
Risk of explosion due to faulty connection.
‣Observe applicable national standards.
‣Comply with the specifications in the Safety Instructions (XA).
‣Check to ensure that the supply voltage matches the information on the nameplate.
‣The specified cable gland must be used.
‣Switch off the supply voltage before connecting.
‣Connect the potential equalization line to the outer ground terminal before applying
the supply voltage.
‣When connecting to the public mains, install a mains switch for the device such that it
is within easy reach of the device. Mark the switch as a disconnector for the device
(IEC/EN61010).

Electrical connection Prosonic M FMU42 HART
16 Endress+Hauser
6.2 Connecting the measuring device
6.2.1 Connection in the F12 housing
1 → 2 → 3 →
A0038240 A0038241 A0038242
‣Unscrew the cover ‣Remove the display if one is
fitted
‣Remove the cable from the
display
4 → 5 → 6 →
A0038243 A0038252 A0038253
‣Pull out the terminal module
slightly using the pull loop
‣Avoid moisture in the housing,
provide a loop to allow
moisture to drain off
7 → 8 → 9
A0038254 A0038706 A0047499
‣Connect the cable shield to the
ground terminal in the
connection compartment
‣Tighten the cable gland
10. Close the connection compartment.
11. Switch on the power supply.

Prosonic M FMU42 HART Electrical connection
Endress+Hauser 17
6.2.2 Connection in the T12 housing
1 → 2 → 3 →
1.
2.
A0038256 A0038257 A0038258
‣Unscrew the cover ‣Avoid moisture in the housing,
provide a loop to allow
moisture to drain off
4 → 5
A0038711 A0047500
‣Connect the cable shield to the
ground terminal in the
connection compartment
‣Tighten the cable gland.
6. Close the housing.
7. Switch on the power supply.
6.3 Terminal assignment
2
4
3
1234
L- L+ I+ I-
1
A0019269
 13 Terminal assignment for two-wire version
1 Supply voltage
2 Test terminal to test the signal current
3 PAL (potential equalization)
4 4-20 mA HART
‣Connect the connecting line to the screw terminals in the connection compartment
(conductor cross-section 0.5 to 2.5 mm2, 20 to 14 AWG)

Electrical connection Prosonic M FMU42 HART
18 Endress+Hauser
‣A standard device cable suffices if only the analog signal should be used. Use a shielded
cable if working with a superimposed communication signal (HART).
Protective circuits against reverse polarity, RF influences and overvoltage peaks are
integrated in the device.
Operation via handheld terminal or PC with operating program: take minimum
communication resistance of 250 Ω and maximum load into consideration
• Superimposed communication signal (HART): use a shielded cable
• Analog signal: use a standard installation cable
• For other connections: use Commubox FXA291 or Field Xpert
6.4 Supply voltage
6.4.1 Two-wire version, HART
Terminal voltage directly at the device
Standard
• Current consumption 4 mA | terminal voltage 14 to 36 V
• Current consumption 20 mA | terminal voltage 8 to 36 V
Ex ia
• Current consumption 4 mA | terminal voltage 14 to 30 V
• Current consumption 20 mA | terminal voltage 8 to 30 V
Ex d
• Current consumption 4 mA | terminal voltage 14 to 30 V
• Current consumption 20 mA | terminal voltage 11 to 30 V
Fixed current, terminal voltage directly at the device
User-configurable, e.g. for solar powered operation (measured value via HART)
Standard
Current consumption 11 mA | terminal voltage 10 to 36 V
Ex ia
Current consumption 11 mA | terminal voltage 10 to 30 V
Fixed current for Multidrop mode
Standard
Current consumption 4 mA | (start-up current: 11 mA), terminal voltage 14 to 36 V
Ex ia
Current consumption 4 mA | (start-up current: 11 mA), terminal voltage 14 to 30 V
6.5 Potential equalization
NOTICE
The housing is isolated from the tank by the plastic sensor. Because of this,
interference signals may occur if the potential equalization line is not properly
connected.
‣Use a short potential equalization line for optimum electromagnetic compatibility.
‣Minimum line cross-section 2.5 mm2 (14 AWG).
Use a ground strap if interference can be expected due to the installation conditions
(existing interfering installations).

Prosonic M FMU42 HART Operation options
Endress+Hauser 19
A0038292
 14 Position of outer ground terminal, example of F12 housing
• Connect the potential equalization line to the outer ground terminal of the transmitter
• In the case of hazardous area applications, only ground on the sensor side
• Comply with the specifications in the Safety Instructions
6.6 Post-connection check
 Are the device or cables undamaged (visual inspection)?
 Do the mounted cables have adequate strain relief?
 Does the supply voltage match the specifications on the nameplate?
 No reverse polarity, terminal assignment correct?
 Do the cables used comply with the requirements?
 Are the cable glands tightened correctly?
 Is the cable gland leak-tight?
 Is the housing cover screwed down?
 If required: Has the protective ground connection been established?
 If supply voltage is present, is the device operational and does a screen appear?
7 Operation options
7.1 Overview of operation options
• Local operation
• HART communication
• FieldCare operating program
• Handheld terminal
7.2 Structure and function of the operating menu
7.2.1 Function codes
Within the function menus, a position is shown on the display for each function.

Operation options Prosonic M FMU42 HART
20 Endress+Hauser
The first two digits identify the function group, examples:
• Basic setup: 00
• Safety settings: 01
• Linearization: 04
The third digit refers to the individual functions within the function group, examples:
• Tank shape: 002
• Medium property: 003
• Process cond.: 004
7.3 Access to the operating menu via the local display
7.3.1 Display
4
1
6
35 2
A0047443
 15 Measured value display
1 Label, e.g. measured value
2 Symbol
3 Value and unit, e.g. 43.2 %
4 Position in menu, e.g. 000
5 Bar graph
6 Position in menu
The bar graph corresponds to the measured value. The bar graph is divided into 10 bars.
Each completely filled bar represents 10% of the set span.
1
A0047444
 16 Group selection
1 Picklist of function groups, e.g. basic setup, safety settings, temperature
2
1
3
A0047445
 17 Function with free parameter
1 Label, e.g. empty calibration
2 Help text
3 Position in menu, e.g. 005