Endress+Hauser levelflex M FMP 40 User manual

BA 244F/00/en/02.03
Nr. 52011934
Valid as of software version:
V 01.02.00 (amplifier)
V 1.00 (communication)
levelflex M
FMP 40
Foundation Fieldbus
Guided Level-Radar
Operating Instructions
F
TM
TM

Brief operating instructions Levelflex M FMP 40 with Foundation Fieldbus
2Endress+Hauser
Brief operating instructions
Note!
This operating manual explains the installation and initial start-up for the level transmitter measuring device. All
functions that are required for a typical measuring task are taken into account here.
In addition, the Levelflex M provides many other functions that are not included in this operating manual, such as
optimising the measuring point and converting the measured values.
An overview of all device functions can be found on page 94.
The operating manual BA 245F/00/en provides an extensive descriptionof all device functions – Description of the
device functions for Levelflex M, which can also be found on the enclosed CD-ROM.
E
+
-
+
E
+
-
E
E
-
… …
… …
KA 189F/00/a2/03.02
52012501
F
E
UB
LB
LN
52012501
Levelflex M - Brief operating instructions
input E
(see sketch) input F (see sketch) displayed
D and L are confirm
or specify
range
suggestion
000
measured value
Group
selection
00
basic setup
01
safety settings
09
display
04
linearisation
05
extended calibr.
0C
system
parameters
092
language
0A
diagnostics
0A0
present
error
002
tank
properties
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
- envel. curve
- substracted signal
- mapping
- single curve
- cyclic
= 100: unlocked
100: locked≠
09A
plot settings
09B
recording
curve
0A1
previous
error
0A4
unlock
parameter
(333 = reset customer parameters)
0A3
reset
UB= upperblockingdistance
B= lowerbllockingdistanceL
LN= probelenght
referencepoint of
measurement
min.level
threaded
connection
1 ½
(G 1
:
reference point of
measurement
¾ or BSP
¾ or G ½)
¾ or 1½ NPT
03
length
adjustment
030
end of
probe
031
probe
length
032
probe 033 probe
length
034
determine
length
- unknown
- 1.4 … 1.6
- 1.6 … 1.9
- 1.9 … 2.5
- 4 … 7
- 2.5 … 4
- > 7
0E
envelope curve
Contrast: +or+
- standard
- aluminium tank
- plastic tank
- bypass/pipe
- coax-probe
- concrete
wall
- standard
- fast
change
- test: no filter
- slow
change
- free
- tie down
isolated
- tie down
gnd.
Ifshortened
pleaseenter probelength here.

Levelflex M FMP 40 with Foundation Fieldbus Table of contents
Endress+Hauser 3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . . . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Notes on safety conventions and symbols . . . 5
2 Identification . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Device designation . . . . . . . . . . . . . . . . . . . . . 6
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Certificates and approvals . . . . . . . . . . . . . . . . 9
2.4 Registered trademarks . . . . . . . . . . . . . . . . . . 9
3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Quick installation guide . . . . . . . . . . . . . . . . . 10
3.2 Incoming acceptance, transport, storage . . . 11
3.3 Installation Conditions . . . . . . . . . . . . . . . . . . 12
3.4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5 Post-installation check . . . . . . . . . . . . . . . . . . 28
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1 Quick wiring guide . . . . . . . . . . . . . . . . . . . . . 29
4.2 Cable specifications Foundation Fieldbus . . 30
4.3 Connection data . . . . . . . . . . . . . . . . . . . . . . 30
4.4 Recommended connection . . . . . . . . . . . . . . 31
4.5 Post-connection check . . . . . . . . . . . . . . . . . 31
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.1 Quick operation guide . . . . . . . . . . . . . . . . . . 32
5.2 Display and operating elements . . . . . . . . . . 34
5.3 Local operation . . . . . . . . . . . . . . . . . . . . . . . 36
5.4 Display and acknowledging error messages 39
5.5 Foundation Fieldbus communication . . . . . . . 40
6 Commissioning . . . . . . . . . . . . . . . . . . . 56
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . 56
6.2 Switching on the measuring device . . . . . . . . 56
6.3 Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.4 Basic Setup with the VU 331 . . . . . . . . . . . . . 59
6.5 Blocking distnace . . . . . . . . . . . . . . . . . . . . . . 67
6.6 Envelope curve with VU 331 . . . . . . . . . . . . . . 68
6.7 Function "envelope curve display" (0E3) . . . . 69
6.8 Basic Setup with the ToF Tool . . . . . . . . . . . . 71
7 Maintenance . . . . . . . . . . . . . . . . . . . . . . 76
8 Accessories . . . . . . . . . . . . . . . . . . . . . . . 77
9 Trouble-shooting . . . . . . . . . . . . . . . . . 81
9.1 Trouble-shooting instructions . . . . . . . . . . . . . 81
9.2 System error messages . . . . . . . . . . . . . . . . . 82
9.3 Application errors . . . . . . . . . . . . . . . . . . . . . . 84
9.4 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.7 Software history . . . . . . . . . . . . . . . . . . . . . . . 88
9.8 Contact addresses of Endress+Hauser . . . . . 88
10 Technical data . . . . . . . . . . . . . . . . . . . . 89
10.1 Technical data at a glance . . . . . . . . . . . . . . . 89
11 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . 94
11.1 Operating menu HART (Display modul),
ToF Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
11.2 Operating matrix Foundation Fieldbus/
Commuwin II . . . . . . . . . . . . . . . . . . . . . . . . . . 96
11.3 Description of functions . . . . . . . . . . . . . . . . . 97
11.4 Function and system design . . . . . . . . . . . . . . 98
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

1 Safety instructions Levelflex M FMP 40 with Foundation Fieldbus
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The Levelflex M FMP 40 is a compact level transmitter for the continuous measurement
of solids and liquids, measuring prinziple: Guided Level Radar /
TDR: Time Domain Reflectometry).
1.2 Installation, commissioning and operation
The Levelflex M has been designed to operate safely in accordance with current
technical, safety and EU standards. If installed incorrectly or used for applications for
which it is not intended, however, it is possible that application-related dangers may
arise, e.g. product overflow due to incorrect installation or calibration. For this reason,
the instrument must be installed, connected, operated and maintained according to the
instructions in this manual: personnel must be authorised and suitably qualified. The
manual must have been read and understood, and the instructions followed.
Modifications and repairs to the device are permissible only when they are expressly
approved in the manual.
1.3 Operational safety
Hazardous areas
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.

Levelflex M FMP 40 with Foundation Fieldbus 1 Safety instructions
Endress+Hauser 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
Explosion protection
Electrical symbols
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 Levelflex 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

2 Identification Levelflex M FMP 40 with Foundation Fieldbus
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
The following technical data are given on the instrument nameplate:
Fig. 1 Information on the nameplate of the Levelflex M FMP 40 (example)
2.1.2 Ordering structure
Ordering structure Levelflex M FMP 40
1) Rod and coaxial probes are also available in Alloy C22. In this case the probe rod is
fixed to the instrument and can not be dismantled.
10 Certificates
A For non-hazardous areas
M FM DIP, Class II, Division 1, Group E-G N.I.
N CSA General Purpose
P CSA DIP, Class II, Division 1, Group G+coal dust, N.I.
S FM IS - Class I/II/III, Division 1, Group A-G N.I.
T FM XP - Class I/II/III, Division 1, Group A-G
U CSA IS - Class I/II/III, Division 1, Group A-D, G+coal dust, N.I.
V CSA XP - Class I/II/III, Division 1, Group A-D, G+coal dust, N.I.
1 ATEX II 1/2 G EEx ia IIC T6
2 ATEX II 1/2 D Alu cover, dust Ex
3 ATEX II 2 G EEx em [ia] IIC T6
4 ATEX II 1/3 D transp. cover, dust Ex
5 ATEX II 1/2 G, II 1/3 D EEx ia IIC T6
Y Special version
20 Probe version, material 1)
Type / application Material
A 4 mm rope probe, predominantly bulk solids 316
B 6 mm rope probe, solids 316
K One rod probe 16 mm, predominantly liquids 316L
L Coax probe, liquids 316L
P Rod probe 6 mm, liquids 316L
Y Special version
FMP 40- Product designation (part 1)
Made in Germany
D-79689 Maulburg
Dat./Insp.:
Order Code:
IP68 / NEMA 6P
Ser.-No.:
4-wire
ENDRESS+HAUSER
t >85°C
TA > 70°C :
D01301-A
if modification
see sep. label
X= Patents
LEVELFLEX-M
90 … 253 V AC 3,5VA
10,5…32VDC 1W
16 … 3 V DC 0,8W
Profibus PA
Foundation Fieldbus
LN= PN=
4 … 20 mA HART 2-wire
Order No
(see Order Information)
Communication
variant and
supply voltage
Serial number
Reference to additional
safety-relevant documentation
Designation according to Directive 94/9/EC
and designation of protection

Levelflex M FMP 40 with Foundation Fieldbus 2 Identification
Endress+Hauser 7
30 Probe length
Rope probes: 1000 mm...35000 mm / 40 in...1378 in
A mm, 4 mm rope, 316
B mm, 6 mm rope, 316
C in, 1/6" rope, 316
D in, 1/4" rope, 316
Rod probes: min. 300 mm...4000 mm / 12 in...157 in
K mm, rod 16 mm, 316L
L mm, coax probe, 316L
M in (0,1 in), rod 16 mm, 316L
N in (0,1 in), coax probe, 316L
Rod probes: min. 300 mm...2000 mm / 12 in...80 in
P mm, rod 6 mm, 316L
R in (0,1 in), rod 6 mm, 316L
Y Special version
40 Sealing
2 FKM O-ring (e.g. Viton) temperature -30°C...+150°C
3 EPDM O-ring temperature -40°C...+120°C
4 FFKM O-ring (e.g. Kalrez) temperature -5°C...+150°C
9 Special version
50 Process connection, material
Threaded connection Material
CNJ ¾" NPT 316L
CRJ G ¾", ISO 228 1.4435
GNJ 1½" NPT 316L
GRJ G 1½", ISO 228 1.4435
Flange Dia/Pressure Standard Material
CFJ DN40 PN40 DIN 2526 Form C 316L
CGJ DN50 PN40 DIN 2526 Form C 316L
CMJ DN80 PN16 DIN 2526 Form C 316L
CQJ DN100 PN16 DIN 2526 Form C 316L
CTJ DN100 PN40 DIN 2526 Form C 316L
CWJ DN150 PN16 DIN 2526 Form C 316L
CXJ DN200 PN16 DIN 2526 Form C 316L
ACJ 1½"/150 lbs ANSI B16.5 316L
ADJ 1½"/300 lbs ANSI B16.5 316L
AEJ 2"/150 lbs ANSI B16.5 316L
AFJ 2"/300 lbs ANSI B16.5 316L
ALJ 3"/150 lbs ANSI B16.5 316L
AMJ 3"/300 lbs ANSI B16.5 316L
APJ 4"/150 lbs ANSI B16.5 316L
AQJ 4"/300 lbs ANSI B16.5 316L
AWJ 6"/150 lbs ANSI B16.5 316L
A3J 8"/150 lbs ANSI B16.5 316L
KDJ 10 K 40A JIS B2210 316L
KEJ 10 K 50A JIS B2210 316L
KLJ 10 K 80A JIS B2210 316L
KPJ 10 K 100A JIS B2210 316L
YY9 Special version
60 Electronic insert / Communication
B 2-wire, 4…20 mA HART
D 2-wire, PROFIBUS-PA
F 2-wire, Foundation Fieldbus
G 4-wire, 90...250 VAC, 4...20 mA HART
H 4-wire, 10,5...32 VDC, 4...20 mA HART
Y Special version
FMP 40- Product designation (part 2)

2 Identification Levelflex M FMP 40 with Foundation Fieldbus
8Endress+Hauser
70 Display
1 without display
2 with display VU 331 incl. on-side operation
9 Special version
80 Remote electronic
1 Standard compact device
2 distance sleeve 400 mm for electronic
3 remote electronic, 3 m cable
9 Special version
90 Housing and cable gland / entry
housing cable gland/-entry
A aluminium F12-housing,
coated, IP68
cable gland M20x1,5
B aluminium F12-housing,
coated, IP68
cable entry G ½
C aluminium F12-housing,
coated, IP68
cable entry ½NPT
D aluminium F12-housing,
coated, IP68
M12 PROFIBUS-PA plug
E aluminium F12-housing,
coated, IP68
7/8" FF-plug
G aluminium T12-housing,
coated, IP68
cable gland M20x1,5
H aluminium T12-housing,
coated, IP68
cable entry G ½
J aluminium T12-housing,
coated, IP68
cable entry ½NPT
K aluminium T12-housing,
coated, IP68
M12 PROFIBUS-PA plug
L aluminium T12-housing,
coated, IP68
7/8" FF-plug
9 Special version
100 Additional options
A Additional options not selected
B 3.1.B material, wetted parts SS316Ti,
Inspection Certificate EN 10204, acc. specification 52005759
Y Special version
FMP 40- Complete product designation
⇓
Please enter probe length in mm or inch / 0.1 inch
mm
inch / 0.1 inch
probe length LN see page 12

Levelflex M FMP 40 with Foundation Fieldbus 2 Identification
Endress+Hauser 9
2.2 Scope of delivery
"Caution!
It is essential to follow the instructions concerning the unpacking, transport and storage
of measuring instruments given in the chapter »Incoming acceptance, transport, sto-
rage«on page 11.
The scope of delivery consists of:
•Assembled instrument
•2 ToF Tool CD-ROMs
–CD 1: ToF Tool Program
–CD 2: Device descriptions (device drivers) and documentation for all
Endress+Hauser devices which are operable using ToF Tool
•Accessories (s. Chapter 8)
Accompanying documentation:
•Short manual (basic equalisation/troubleshooting): housed in the instrument
•Operating manual (this manual)
•Operating manual: Description of the instrument functions
•Approval documentation: if this is not included in the operating manual.
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
KALREZ ®, VITON ®, TEFLON ®
Registered trademark of the company E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP ®
Registered trademark of the company Ladish & Co., Inc., Kenosha, USA
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
FoundationTM Fieldbus
Registered trademark of Fieldbus Foundation Austin, Texas, USA

3 Mounting Levelflex M FMP 40 with Foundation Fieldbus
10 Endress+Hauser
3 Mounting
3.1 Quick installation guide
3
1
2
60
50
¾"
1"
½F12 housing
Turn housing
The housing can be turned 350°
in order to simplify access to the
display and the terminal compartment
AF 60
max. torque
20 Nm
Caution!
Use only the
threaded boss ???
F12 or T12 housing
AF 50
max. torque
5 Nm
F12 or T12 housing

Levelflex M FMP 40 with Foundation Fieldbus 3 Mounting
Endress+Hauser 11
3.2 Incoming acceptance, transport, storage
3.2.1 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.
3.2.2 Transport
"Caution!
Follow the safety instructions and transport conditions for instruments of more than
18 kg. Do not lift the measuring instrument by its probe rod in order to transport it.
3.2.3 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…+80 °C.

3 Mounting Levelflex M FMP 40 with Foundation Fieldbus
12 Endress+Hauser
3.3 Installation Conditions
3.3.1 Dimensions
Fig. 2 Dimensions Levelflex M FMP 40
ENDRESS+HAUSER
Levelflex-M
65 78
Ø129
ca. 86
ENDRESS+HAUSER
Levelflex-M
78
85
85
88
88
400
123
2765
112
270...310
65
Ø129
162
150
68 94
Ø76
Ø76
SW 50 SW 60
4 x Ø8,5
110
110
Ø60
Ø67,8
150
Ø60,3
25
25
F12 housing T12 housing
Threaded connection
G ¾(¾BSP)
or ¾NPT
Threaded connection
G 1 ½(1 ½BSP)
or 1 ½NPT
Flange DN 40…200
or equivalent
reference point of
measurement
option:
distance sleeve option:
remote electronic
68
rope:
Ø4 mm/
or
0.16”
Ø6 mm/0.24”
rope probe rod probe coax probe
Ø6/0.24”(on ¾” thread)
Ø16/0.63”(on 1½” thread
or flange)
Ø21,3/0.84”(on ¾” thread)
Ø42,4/1.67”(on 1½” thread
or flange)
Ø22/0.87”(on 4 mm/ rope)0.16”
Ø30/1.18”(on 6 mm/0.24”rope)
internal thread:
M14 on 4 mm/0.16”rope
M20 on 6 mm/0.24”rope
probe length LN
Probe rods in Alloy C22
consist of 1 piece
(can not be dismantled)

Levelflex M FMP 40 with Foundation Fieldbus 3 Mounting
Endress+Hauser 13
3.4 Installation
3.4.1 Mounting kit
In addition to the tool needed for flange mounting, you will require the following tool:
•4 mm Allen wrench for turning the housing.
Shortening probes
Rod and rope probes can be easily shortened. This is necessary if the distance to the
container floor or outlet cone is less than 150 mm in the case of a rope probe, or less
than 100 mm in the case of a rod probe or less than 50 mm in the case of a coax probe.
Shortening rod probes
The rods of a rod probe are shortened by sawing or separating at the bottom end.
Shortening coax probes
Coax probes can be shortened max. 80 mm from the end. They have centering units
inside which fix the rod centrally in the pipe. The centerings are held with borders on the
rod. Shortening is possible up to approx. 10 mm below the centering.
Shortening rope probes
•Remove ballast weight:
–The weight is fixed to the probe rope
with 3 Allen setscrews (M4, Allen key
AF3). The screws are secured with
Loctite. This may first have to be made
plastic with a hot air apparatus.
•Remove released rope from the weight
•Measure off new rope length
•Wrap adhesive tape around the rope at
the point to be shortened to prevent it
from fanning out.
•Saw off the rope at a right angle or cut it
off with a bolt cutter.
•Insert the rope completely into the
weight,
–thin rope (4 mm) 60 mm deep,
–thick rope(6 mm) 80 mm deep
The weight is then refixed to the rope:
•Reapply screw locking fluid (we recom-
mend Loctite type 243) to the setscrews
and screw into place.
•When doing so, observe the following
torques:
–For 6 mm rope: 15 Nm
–For 4 mm rope: 5 Nm
60 / 80 mm
M4
secured with
Loctite 243
torque
4 mm cable = 5 Nm
6 mm cable =15 Nm

3 Mounting Levelflex M FMP 40 with Foundation Fieldbus
14 Endress+Hauser
3.4.2 Engineering hints for level measurement in bulk solids and
fluids
The following installation instructions apply for rope and rod probes for measurement in
bulk solids and fluids.
Coax probes are suitable purely for measurement in fluids. They function practically
independent of all installation conditions and can, therefore, be installed as desired.
•Temperature conditions must be met (see page 90).
•It is recommended that a protective cover (1) is used, in order to protect the
transmitter against direct sunlight or rain (see »Accessories«on page 77.).
Mounting location
•Do not mount rod or rope probes in the
filling curtain (3)
•Mount rod and rope probes away from
the wall (B) at such a distance that, in the
event of build-up on the wall, there is still
a minimum distance of 100 mm between
the probe and the build-up.
•Mount rod and rope probes as far away
as possible from installed fittings.
"Mapping " must be carried out during
commissioning in the event of distances
< 300 mm.
•When installing rod and rope probes in
plastic containers, the minimum
distance of
300 mm also applies to metallic parts
outside the container.
•Rod and rope probes may not, at times,
contact metallic container walls or floors.
•In metal containers, do not install rod
and rope probes exactly in the centre
(2).
•Minimum distance of probe end to the
container floor (C):
–Rope probe: 150 mm
–Rod probe: 100 mm
–Coax probe: 50 mm
•When installing outdoors, it is
recommended that you use a protective
cover (1) see »Accessories«on
page 77..
B
C
123

Levelflex M FMP 40 with Foundation Fieldbus 3 Mounting
Endress+Hauser 15
Minimum distance B of the probe to the container wall:
Distance to protruding internals min. 300 mm.
Other installations
•Select the mounting location such that
the distance to internals (5) (e.g. limit
switch, struts) > is 300 mm over the
entire length of the probe, also during
operation.
•Probe must within the measuring span
not touch any internals during operation.
If necessary: when using rope probes
the probe end (4) may be fixed to ensure
that (see page 23)!.
Optimization options
•Interference echo suppression:
Measurement can be optimised by
electronically tuning out interference
echoes.
Wall min. distance B
Metal 100 mm for smooth walls
Plastic 100 mm, min. 300 mm to metallic components outside of the tank
Concrete 0.5 m/20", otherwise the max. possible measuring range is reduced
5
4

3 Mounting Levelflex M FMP 40 with Foundation Fieldbus
16 Endress+Hauser
Standard installation
•Probes are mounted to the process connection with threaded connections or flanges
and are usually also secured with these. If during this installation there is the danger
that the probe end moves so much that it touches the tank floor or cone at times, the
probe must, if necessary, be shortened and fixed down. The easiest way to fix the rope
probes is to screw them to the internal thread on the lower end of the weight. Thread
size, see page 23.
•The ideal installation is mounting in a screwed joint / screw-in sleeve which is internally
flush with the container ceiling.
•If installation takes place in a nozzle, the nozzle should be 50 ... 150 mm in diameter
and should not be more than 150 mm high. Installation adapters are available for other
dimensions, see »Accessories«on page 77.
Probe length
•The measuring range is directly dependent on the probe length. If the probe is not
fixed at the bottom end, the following distances to the container floor must be
observed:
–Rope probe: 150 mm
–Rod probe: 100 mm
–Coax probe: 30 mm
It is better to order probes too long than too short since it is possible to shorten the
probe if necessary.
diameter nozzle:
≤≤DN150 ( 6”)
≤150 mm
( 4")≤
installation with welding boss
1½" or ¾"installation in nozzle

Levelflex M FMP 40 with Foundation Fieldbus 3 Mounting
Endress+Hauser 17
3.4.3 Special notes for bulk solids
Installation in concrete silos
Installation, for example, into a thick concrete ceiling should be made flush with the
lower edge. Alternatively, the probe can also be installed into a pipe that must not
protrude over the lower edge of the silo ceiling. Installation suggestions see diagram.
•In the case of bulk solids, as great a
distance as possible from the filling
curtain is especially important to avoid
wear.
•In concrete silos, a large distance (B)
should be observed between the probe
and the concrete wall, if possible >= 1m,
but at least 0.5m
B
≥100 mm ≥100 mm
Ø80...150 mm
metal
Extension rod /
Centering
(see accessories)

3 Mounting Levelflex M FMP 40 with Foundation Fieldbus
18 Endress+Hauser
3.4.4 Installation in bulk solid silos
Tensile load
Bulk solids exert tensile forces on rope probes whose height increases with::
•the length of the probe, i.e. max. cover,
•the bulk density of the product,
•the silo diameter and
•the diameter of the probe rope
The following diagrams show typical loads for frequently occurring bulk solids as
reference values. The calculation is performed for the following conditions:
•Suspended probe (probe end not fixed at the bottom)
•Free-flowing bulk solid, i.e. mass flow. A calculation for core flow is not possible.
In the event of collapsing cornices, considerably higher loads can occur.
•The specification for tensile forces contains the safety factor 2, which compensates
for the normal fluctuation range in pourable bulk solids.
05 10 15 20 25 30 35
0
10
20
30
40
50
60
pulling force, 6 mm rope [kN]
level [m]
silica sand
smooth metallic alls
silo diameter 12 m
silo diameter 9 m
silo diameter 6 m
silo diameter 3 m
0
5
10
15
20
25
30
35
40
pulling force, 4 mm rope [kN]
05 10 15 20 25 30 35
0
2
4
6
8
10
12
14
16
18
pulling force, 6 mm rope [kN]
level [m]
polyethylene pellets
smooth metallic alls
silo diameter 12 m
silo diameter 9 m
silo diameter 6 m
silo diameter 3 m
0
1
2
3
4
5
6
7
8
9
10
11
12
pulling force, 4 mm rope [kN]
05 10 15 20 25 30 35
0
5
10
15
20
25
30
35
pulling force, 6 mm rope [kN]
level [m]
heat
smooth metallic alls
silo diameter 12 m
silo diameter 9 m
silo diameter 6 m
silo diameter 3 m
0
2
4
6
8
10
12
14
16
18
20
22
24
pulling force, 4 mm rope [kN]
05 10 15 20 25 30 35
0
10
20
30
40
50
60
pulling force, 6 mm rope [kN]
level [m]
cement
smooth metallic alls
silo diameter 12 m
silo diameter 9 m
silo diameter 6 m
silo diameter 3 m
0
5
10
15
20
25
30
35
40
pulling force, 4 mm rope [kN]

Levelflex M FMP 40 with Foundation Fieldbus 3 Mounting
Endress+Hauser 19
Since the tensile forces are also heavily dependent on the viscosity of the product, a
higher safety factor is necessary for highly viscous products and if there is a risk of
cornice build-up.
In critical cases it is better to use a 6 mm rope instead of a 4 mm one.
The same forces also act on the silo cover.
On a fixed rope, the tensile forces are definitely greater, but this can not be calculated.
Observe the tensile strength of the probes or ensure that the tensile strength of the
probes is not exceeded.
Options for reducing the tensile forces:
•Shorten the probe
•If the maximum tensile load is exceeded, check whether it would be possible to use
a non-contact ultrasonic device.

3 Mounting Levelflex M FMP 40 with Foundation Fieldbus
20 Endress+Hauser
3.4.5 Installation in liquids tanks
•When installing in agitation units, check whether a no-contact process (ultrasonic or
radar) would be better suited, especially if the agitator generates large mechanical
loads on the probe.
•If Levelflex is, nevertheless, installed in tanks with agitators, it is better to use coax
probes which have a greater lateral loading capacity.
Standard installation
Using a coax probe offers great advantages when the viscosity of the product is < 500
cst and it is certain that the product does not accumulate build-up:
•Greater reliability:
As of dielectric constant=1.4, measurement functions independently of all electrical
properties in all liquids.
•Internals in the tank and nozzle dimensions do not have any influence on
measurement.
•Higher lateral load-bearing capacity than rod probes.
•For higher viscosity a rod probe is recommended, or using a non-contact measuring
principle.
Installation in horizontal cylindrical
and standing tanks
•Use a coax or rod probe for measuring
ranges up to 4 m. For anything over this
or if there is too free cover space use a 4
mm rope probe.
•Installation and possible fixing as with
bulk solids.
•Any distance from wall, as long as
occasional contact is prevented.
•Do not mount a rod or rope probe (1)
exactly central when using metallic
containers. Central mounting doesn‘t
impair coax probe (2) performance.
•When installing in tanks with a lot of
internals or internals situated close to
the probe: Use a coax probe.
1
2