Endress+Hauser FMU 40 User manual

BA 237F/00/en/03.03
52010990
Valid as of software version:
V 01.02.00 (amplifier)
V 01.02.00 (communication)
prosonic M
FMU 40/41/43
with HART and 4 ... 20 mA
Ultrasonic Level Measurement
Operating Instructions
FMU 40
FMU 41
FMU 43
HART
R
FIELD COMMUNICATION PROTOCOL

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
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 40/41/43 with HART and 4 ... 20 mA
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 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Certificates and approvals . . . . . . . . . . . . . . . . 7
2.4 Registered trademarks . . . . . . . . . . . . . . . . . . 7
3 Installation. . . . . . . . . . . . . . . . . . . . . 8
3.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Installation variants . . . . . . . . . . . . . . . . . . . . . 9
3.3 Installation conditions . . . . . . . . . . . . . . . . . . 10
3.4 Measuring range . . . . . . . . . . . . . . . . . . . . . . 13
3.5 Installation (FMU 40/41) . . . . . . . . . . . . . . . . . 14
3.6 Installation check . . . . . . . . . . . . . . . . . . . . . . 15
4 Wiring. . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Electrical connection . . . . . . . . . . . . . . . . . . . 16
4.2 Terminal assignment . . . . . . . . . . . . . . . . . . . 17
4.3 Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . 18
4.4 Potential matching . . . . . . . . . . . . . . . . . . . . . 19
4.5 Checking the connection . . . . . . . . . . . . . . . . 19
5 Operation . . . . . . . . . . . . . . . . . . . . . 20
5.1 Display and operating elements . . . . . . . . . . 20
5.2 Function codes . . . . . . . . . . . . . . . . . . . . . . . 22
5.3 Operating options . . . . . . . . . . . . . . . . . . . . . 23
5.4 Operation using the on-site display VU 331 . 24
5.5 Operation using ToF Tool . . . . . . . . . . . . . . . 25
5.6 Operation with Commuwin II . . . . . . . . . . . . . 26
5.7 Operation using a HART handheld terminal DXR
275 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.8 Lock/unlock configuration . . . . . . . . . . . . . . . 28
5.9 Resetting the customer parameters . . . . . . . 28
5.10 Resetting an interference echo suppression (tank
map) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6 Commissioning . . . . . . . . . . . . . . . . 30
6.1 Power up instrument . . . . . . . . . . . . . . . . . . . 30
6.2 Basic calibration . . . . . . . . . . . . . . . . . . . . . . 31
6.3 Envelope curve . . . . . . . . . . . . . . . . . . . . . . . 36
7 Troubleshooting . . . . . . . . . . . . . . . 39
7.1 System error messages . . . . . . . . . . . . . . . . . 39
7.2 Application errors . . . . . . . . . . . . . . . . . . . . . 41
8 Maintenance and repairs. . . . . . . . . 43
8.1 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . 43
8.2 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.3 Repairs to Ex-approved devices . . . . . . . . . . 43
8.4 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.5 Spare parts (housing type F12) . . . . . . . . . . . 44
8.6 Spare parts (housing type T12) . . . . . . . . . . . 45
8.7 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.9 Software history . . . . . . . . . . . . . . . . . . . . . . . 46
8.10 Contact addresses of Endress+Hauser . . . . . 46
9 Accessories . . . . . . . . . . . . . . . . . . . . 47
9.1 Weather protection cover . . . . . . . . . . . . . . . . 47
9.2 Installation bracket for FMU 40/41 . . . . . . . . . 47
9.3 Adapter flange for FMU 40 / FMU 41 . . . . . . . 48
9.4 Cantilever . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9.5 Mounting Frame for Cantilever . . . . . . . . . . . . 50
9.6 Wall Bracket for Cantilever . . . . . . . . . . . . . . . 50
9.7 Mounting bracket for FMU 43 . . . . . . . . . . . . . 51
9.8 Commubox FXA 191 HART . . . . . . . . . . . . . . 51
9.9 Service Interface FXA 193 . . . . . . . . . . . . . . . 51
9.10 Remote display and operation FHX 40 . . . . . 52
10 Technical Data . . . . . . . . . . . . . . . . . 53
10.1 Technical data at a glance . . . . . . . . . . . . . . . 53
11 Appendix. . . . . . . . . . . . . . . . . . . . . . 56
11.1 Operating menu . . . . . . . . . . . . . . . . . . . . . . . 56
11.2 Operating matrix (for Commuwin II) . . . . . . . . 58
11.3 Measuring principle . . . . . . . . . . . . . . . . . . . . 59
Stichwortverzeichnis . . . . . . . . . . . . . . . . 60

Safety instructions Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
4
1Safetyinstructions
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 regulations.

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA 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.
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
0Device certified for use in explosion hazardous area
If the Micropilot 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
%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

Identification Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
6
2 Identification
2.1 Nameplate
L00-FMU4xxxx-18-00-00-yy-001
1: Order Code; 2: erial 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)
2.2 Scope of delivery
2.2.1 Instrument and accessories
•Instrument according to the version ordered
•2 ToF Tool CD-Roms:
– CD 1: ToF Tool program
– CD 2: Device Descriptions and documentation for all Endress+Hauser instruments,
that can be operated via ToF Tool
•for FMU 40/41 in the versions FMU 40 *R**** and FMU 41 *R****: counter nut (PA)
•for FMU 40/41: sealing ring (EPDM)
2.2.2 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 237F, 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 CD-ROM 2 "Documentation + Device
Descriptions"
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…20mA 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 40/41/43 with HART and 4 ... 20 mA Identification
7
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
variant.
2.3 Certificates and approvals
CE mark, declaration of conformity
The instrument 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 instrument
complies with the applicable standards and regulations in accordance with EN 61010
"Protection Measures for Electrical Equipment for Measurement, Control, Regulation
and Laboratory Procedures". The instrument described in this manual thus complies
with the statutory requirements of the EG directives. Endress+Hauser confirms the
successful testing of the instrument by affixing to it the CE mark.
2.4 Registered trademarks
HART®
Registered trademark of HART Communication Foundation, Austin, USA
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

Installation Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
8
3Installation
3.1 Dimensions
L00-FMU4xxxx-06-00-00-en-003
65 78
Ø129
ca. 86
78
85
85
65
Ø129
162
150
68 94
~148
~83
22
FMU 40 FMU 41
Ø39 Ø50
~148
~87
22
85
2 x M8
65 78
Ø129
~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
89
Ø230
F12 housing T12 housing
FMU 43 with slip-on flange
FMU 43 with mounting bracket
60 AF
G2”
2 NPT
G1½”
1½NPT
60 AF
ANSI 4”
DN 100
Alternatively, a separate
flange can be used.

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA Installation
9
3.2 Installation variants
3.2.1 Installation variants FMU 40, FMU 41
L00-FMU4xxxx-17-00-00-en-002
3.2.2 Installation variants FMU 43
L00-FMU43xxxx-17-00-00-en-001
ENDRESS+HAUSER
ProsonicM
Installation with sleeveInstallation with counter nut
Installation with installation bracket
counter nut (PA)
supplied
for G 1½” and
G 2”instruments
adapter flange
sensor nozzle
Sealing ring
(EPDM)
supplied
Installation with adapter flange
Sealing ring
(EPDM)
supplied
ENDRESS+HAUSER
Prosonic M
Installation with
mounting bracket
Installation with
universal slip-on flange
slip-on flange
sensor
nozzle
e.g.
Zone 20 .
Zone 20

Installation Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
10
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 transmitted echo beam and its 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 αL r
FMU 40 11° 5 m 0,48 m
FMU 41 11° 8 m 0,77 m
FMU 43 6° 15 m 0,79 m
In narrow shafts with strong interference
echoes, we recommend using an ultra-
sound guide pipe (e.g. PE or PVC waste-
water pipe) with a minimum diameter of
100 mm.
Make sure that the pipe is not soiled by
accumulated 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

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA Installation
11
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, plus 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.

Installation Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
12
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

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA Installation
13
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
"Caution!
If the blocking distance is undershot, it may cause device malfunction.
Sensor blocking distance (BD)
FMU 40 0,25 m
FMU 41 0,4 m
FMU 43 0,6 m
L
L
D
D
F
E
BD
SD
FMU 40/41
FMU 43
BD: blocking distance
SD: safety distance
E: empty calibration
F: full calibration (span)
D [mm] max. L [mm]
50 approx. 80
80 approx. 240
100 approx. 300
D [mm] max. L [mm]
80 approx. 240
100 approx. 300
FMU 40
FMU 41
FMU 43
D > approx. 100 mm
L < approx. 300 mm

Installation Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
14
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).
3.5 Installation (FMU 40/41)
Sensor maximum range
FMU 40 5 m
FMU 41 8 m
FMU 43 15 m
1. Screw the Prosonic M at the screw-in
piece using an 60 AF spanner.
Maximum torque: 20 Nm.
2. Slacken the Allen screw M8/AF4.
3. Rotate the housing into the required
position (best possible access to the
connection compartment)
4. Tighten the Allen screw.
Maximum torque 0.5 Nm.
L00-FMU4xxxx-17-00-00-en-009
60
1
3
2
4
Allen key 4 mm/0.1”
AF 60
max torque
20 Nm
Caution!
Use only the screw-in
piece to screw in
the Prosonic M
max torque: 0,5 Nm

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA Installation
15
3.6 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?

Wiring Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
16
4Wiring
4.1 Electrical connection
"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 (s. section "Potential matching")
#Warning!
When you use the measuring system in hazardous areas, make sure to comply with
national standards and the specifications in the safety instructions (XA’s). Make sure
you use the specified cable gland.
4.1.1 Wiring in the housing F12
1. Unscrew housing cover (1).
2. Remove display (2) if fitted.
3. Remove cover plate (3) from terminal
compartment.
4. Pull out terminal module (4) slightly
using pulling loop.
5. Insert cable (5) through gland (6).
6. Connect cable screen to the
grounding terminal (7) within the
terminal compartment.
7. Make connection according to
terminal assignment (see below).
8. Re-insert terminal module (4).
9. Tighten cable gland (6).
10. Tighten screws on cover plate (3).
11. Insert display (2) if fitted.
12. Screw on housing cover (1).
13. Switch on power supply.
L00-FMU4xxxx-04-00-00-yy-008
1234
ENDRESS+HAUSER
ENDRESS+HAUSER
3
5
4
1
2
6
7

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA Wiring
17
4.1.2 Wiring in the housing T12
4.2 Terminal assignment
1. Unscrew the cover (1) of the separate
connection room.
2. Insert cable (2) through gland (3).
3. Connect cable screen to the
grounding terminal (4) within the
connection room.
4. Make connection according to the
terminal assignment (see below).
5. Tighten cable gland (3).
6. Screw on housing cover (1).
7. Switch on power supply.
L00-FMU4xxxx-04-00-00-yy-009
3
2
1234
4
1
Loop-powered version
L00-FMxxxxxx-04-00-00-en-004
4-wire version (active)
L00-FMxxxxxx-04-00-00-en-001
1234
L- L+ I+ I-
test sockets
(output current)
Commubox
FXA 191
DXR 275
communication
resistor
(> 250 )Ω
power
alternatively
plant
ground 12
L1/L+ N/L-
56
I+ I-
plant
ground
Commubox
FXA 191
DXR 275
communication
resistor
(> 250 )Ω
alternatively
Auxiliary energy
AC / DC
4...20mA

Wiring Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
18
4.3 Supply voltage
4.3.1 HART, 2-wire
The following values are the voltages across the terminals directly at the instrument:
4.3.2 HART, 4-wire, active
"Caution!
When using the public powers supply, install an easy accessible power switch in the
proximity of the instrument. Mark the power switch as a disconnector for the instrument
(IEC/EN 61010).
Version Current
consumption Terminal voltage minimum Terminal voltage maximum
2-wire HART Standard 4 mA 14 V 36 V
20 mA 8 V 36 V
EEx ia 4 mA 14 V 30 V
20 mA 8 V 30 V
EEx d 4 mA 14 V 30 V
20 mA 11 V 30 V
Fixed current
(measured value
via HART)
Standard 11 mA 10 V 36 V
EEx ia 11 mA 10 V 30 V
Version Voltage max. load
DC 10,5 ... 32 V 600 Ω
AC 50/60 Hz 90 ... 253 V 600 Ω

Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA Wiring
19
4.4 Potential matching
L00-FMP4xxxx-17-00-00-yy-043
1: external ground terminal of the transmitter
Connect the equipotential bonding to the external ground terminal of the transmitter.
"Caution!
In Ex applications, the instrument must only be grounded on the sensor side. Further
safety instructions are given in the separate documentation for applications in explosion
hazardous areas.
!Note!
For optimum electromagnetic compatibility the potential matching line should be as
short as possible and at least 2,5 mm2in cross-section.
4.5 Checking the connection
After wiring the device, carry out the following checks:
•Are the terminals correctly assigned?
•Is the cable gland tight?
•Is the housing cover fully screwed on?
•If power supply available: Does a display appear on the display module?
1
1

Operation Prosonic M FMU 40/41/43 with HART and 4 ... 20 mA
20
5Operation
5.1 Display and operating elements
5.1.1 On-site display VU 331
The LCD module VU 331 for display and operation is located beneath the housing
cover. The measured value is legible through the glass in the cover. Open the cover to
operate the device.
L00-FMxxxxxx-07-00-00-en-001
5.1.2 Display appearance
L00-FMxxxxxx-07-00-00-en-002
ENDRESS + HAUSER
E
+–
ENDRESS+HAUSER
MICROPILOTII
ENDRESS+HAUSER
MICROPILOTII
IP65
IP65
OrderCode:
Ser.-No.:
OrderCode:
Ser.-No.:
Messbereich
Measuringrange
Messbereich
Measuringrange
U16...36VDC
4...20mA
U16...36VDC
4...20mA
max.20m
max.20m
MadeinGermany Maulburg
MadeinGermany Maulburg
T>
70°C:
At>85°C
T>7
0°C:
At>85°C
LCD
(liquid crystal display)
Symbols 3 keys
*
bargraph
help texts
envelope
curve
label
position in menu
value
unit
symbol
measured value
display
group selection
function with
free parameter
envelope curve
display
label
position in menu
selection list