Endress+Hauser micropilot M FMR 240 User manual

BA 220F/24/ae/11.02
Nr. 52009944
Valid as of software version:
V 01.02.00 (amplifier)
V 01.02.00 (communication)
micropilot M
FMR 240
Level-Radar
Operating Instructions

Micropilot M FMR 240
2Endress + Hauser
Brief operating instructions
L00-FMR2xxxx-19-00-00-en-039
!Note!
This operating manual explains the installation and initial start-up for the level
transmitter. All functions that are required for a typical measuring task are taken into
account here. In addition, the Micropilot M provides many other functions that are not
included in this operating manual, such as optimizing the measuring point and
converting the measured values.
An overview of all device functions can be found on Page 78.
The operating manual BA 221F provides an extensive description of all device
functions - Description of the instrument functions for Micropilot M, which can also be
found on the enclosed CD-ROM.
E
+
-
+
E
+
-
F
L
D
E
E
E
-
… …
… …
KA 159F/00/a2/05.02
52006292
52006292
… …
Micropilot M - Brief operating instructions
- dome
ceiling
- horizontal
cyl.
- bypass
…
- unknown
- DC: <1.9
- DC: 1.9 … 4
- DC: 4 … 10
- DC: >10
- standard
- calm
surface
- add. agitator
…
input E
(see sketch) input F (see sketch) only for
bypass +
stilling well
- ok
- too small
- too big
- unknown
- manual
displayed
(see sketch)
D and L are confirm
or specify
range
suggestion
000
measured value
Group
selection
00
basic setup
01
safety settings
0C
system
parameter
09
display
0E
envelope curve
04
linearisation
05
extended calibr.
06
output (HART, FF)
profibus param.(PA)
092
language
0A
diagnostics 0A0
present
error
002
tank shape 004
process
cond.
005
empty
calibr.
006
full
calibr.
007
pipe
diameter
008
dist./
meas value
051
check
distance
003
medium
cond.
052
range of
mapping
053
start
mapping
008
dist./
meas value
flange:
referencepoint
ofmeasurement
- envel. curve
- incl. FAC
- incl. cust. map
- single curve
- cyclic
= 100: unlocked
100: locked≠
= 2457: unlocked
2457: locked≠
0E1
plot settings 0E2
recording
curve
0A1
previous
error
0A4
unlock
parameter
threaded connection:
reference point of
measurement
HART
PA, FF
}
}
Contrast: +or+

Micropilot M FMR 240 Endress + Hauser
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 instructions . . . . . . . . . . . . . . . . . 18
3.5 Post-installation check . . . . . . . . . . . . . . . . . . 24
4 Wiring. . . . . . . . . . . . . . . . . . . . . . . . 25
4.1 Quick wiring guide . . . . . . . . . . . . . . . . . . . . . 25
4.2 Connecting the measuring unit . . . . . . . . . . . 27
4.3 Equipotential bonding . . . . . . . . . . . . . . . . . . 29
4.4 Degree of protection . . . . . . . . . . . . . . . . . . . 29
4.5 Post-connection check . . . . . . . . . . . . . . . . . 29
5 Operation . . . . . . . . . . . . . . . . . . . . . 30
5.1 Quick operation guide . . . . . . . . . . . . . . . . . . 30
5.2 Display and operating elements . . . . . . . . . . 32
5.3 Local operation . . . . . . . . . . . . . . . . . . . . . . . 34
5.4 Display and acknowledging error messages 37
5.5 HART communication . . . . . . . . . . . . . . . . . . 38
6 Commissioning . . . . . . . . . . . . . . . . 41
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . 41
6.2 Switching on the measuring device . . . . . . . . 41
6.3 Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.4 Basic Setup with the VU 331 . . . . . . . . . . . . . 44
6.5 Basic Setup with the ToF Tool . . . . . . . . . . . . 56
7 Maintenance . . . . . . . . . . . . . . . . . . 61
8 Accessories . . . . . . . . . . . . . . . . . . . 62
9 Troubleshooting . . . . . . . . . . . . . . . 64
9.1 Troubleshooting instructions . . . . . . . . . . . . . 64
9.2 System error messages . . . . . . . . . . . . . . . . . 65
9.3 Application errors . . . . . . . . . . . . . . . . . . . . . 67
9.4 Orientation of the Micropilot . . . . . . . . . . . . . . 69
9.5 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.6 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
9.7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
9.8 Software history . . . . . . . . . . . . . . . . . . . . . . . 73
9.9 Contact addresses of Endress+Hauser . . . . . 73
10 Technical data . . . . . . . . . . . . . . . . . 74
10.1 Technical data at a glance . . . . . . . . . . . . . . . 74
11 Appendix. . . . . . . . . . . . . . . . . . . . . . 78
11.1 Operating menu HART (display module),
ToF Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.2 Operating matrix HART / Commuwin II . . . . . . 80
11.3 Description of functions . . . . . . . . . . . . . . . . . 81
11.4 Function and system design . . . . . . . . . . . . . . 82
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Safety instructions Micropilot M FMR 240
4Endress + Hauser
1 Safety instructions
1.1 Designated use
The Micropilot M FMR 240 is a compact radar level transmitter for the continuous,
contactless measurement of liquids, pastes and slurries. The device can also be freely
mounted outside closed metal vessels because of its operating frequency of about
26 GHz and a maximum radiated pulsed energy of 1mW (average power output 1 µW).
Operation is completely harmless to humans and animals.
1.2 Installation, commissioning and operation
The Micropilot 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 authorized 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
1.3.1 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.
1.3.2 FCC approval
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause
undesired operation.
"Caution!
Changes or modifications not expressly approved by the part responsible for
compliance could void the user’s authority to operate the equipment.

Micropilot M FMR 240 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.
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 nameplate 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 Micropilot M FMR 240
6Endress + Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
The following technical data is given on the instrument nameplate:
L00-FMR2xxxx-18-00-00-en-001
Fig. 1: Information on the nameplate of the Micropilot M (example)
2.1.2 Ordering structure
Ordering structure Micropilot M FMR 240
10 Certificates
A For non-hazardous areas
F For non-hazardous areas + WHG
S FM IS - Class I, Division 1, Group A-D
T FM XP - Class I, Division 1, Group A-D
U CSA IS - Class I, Division 1, Group A-D
V CSA XP - Class I, Division 1, Group A-D
Y Special version
20 Antenna size
21½"/40mm
3 2" / 50 mm
4 3" / 80 mm
5 4" / 100 mm
8 inch Wave Guide antenna, inside diameter: 0.83" (21 mm)
30 Type of antenna, sealing, temperature
Type Sealing Temperature range
V Standard Viton/FKM -4 °F - +302 °F / -20° C - 150° C
E Standard Viton GLT -40 °F - +302 °F / -40° C - 150° C
K Standard Kalrez 32 °F - +302 °F / 0° C - 150° C
FMR 240- Product designation (part 1)

Micropilot M FMR 240 Identification
Endress + Hauser 7
Ordering structure Micropilot M FMR 240 (continued)
40 Antenna extension
1 without antenna extension
2 4" / 100 mm antenna extension
9 Special version
50 Process connection, material
Threaded connection Standard Material
GNS NPT 1½" SS316L
Flange Dia/Pressure Standard Material
AEJ 2"/300 lbs ANSI B16.5 SS316L
AFJ 2"/300 lbs ANSI B16.5 SS316L
ALJ 3"/150 lbs ANSI B16.5 SS316L
AMJ 3"/300 lbs ANSI B16.5 SS316L
APJ 4"/150 lbs ANSI B16.5 SS316L
AQJ 4"/300 lbs ANSI B16.5 SS316L
AWJ 6"/150 lbs ANSI B16.5 SS316L
AEM 2"/300 lbs ANSI B16.5 Alloy C22 face
AFM 2"/300 lbs ANSI B16.5 Alloy C22 face
ALM 3"/150 lbs ANSI B16.5 Alloy C22 face
AMM 3"/300 lbs ANSI B16.5 Alloy C22 face
APM 4"/150 lbs ANSI B16.5 Alloy C22 face
AQM 4"/300 lbs ANSI B16.5 Alloy C22 face
AWM 6"/150 lbs ANSI B16.5 Alloy C22 face
TLJ 3" Tri-clamp ISO 2852 SS316L
YY9 Special version
60 Output and menu based operation
A 4-20 mA HART with VU 331 (4-line alphanumeric display)
B4-20mAHART
C PROFIBUS-PA with VU 331 (4-line alphanumeric display)
D PROFIBUS-PA
E Foundation Fieldbus with VU 331 (4-line alphanumeric display)
F Foundation Fieldbus
Y Special version
FMR 240- Product designation (part 2)

Identification Micropilot M FMR 240
8Endress + Hauser
Ordering structure Micropilot M FMR 240 (continued)
70 Housing
A Aluminum F12-housing, coated, NEMA 4X / IP65
C Aluminum T12-housing with separate connection compartment, coated,
NEMA 4X / IP65
YSpecialversion
80 Gland / Entry
4 ½ NPT cable entry
5 PROFIBUS-PA M12 plug
6 7/8" FF plug
9 Special version
90 Additional options
A Additional options not selected
B 3.1.B material, wetted parts SS316L, Inspection Certificate EN 10204,
acc. specification 52005759
Y Special version
FMR 240- Complete product designation

Micropilot M FMR 240 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,
storage" 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 wich are operable using ToF Tool
•Accessories (→Chap. 8)
Accompanying documentation:
•Short manual (basic equalization/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
PhaseMaster®
Registered trademark of the company Endress+Hauser GmbH+Co. KG, Maulburg,
Germany

Mounting Micropilot M FMR 240
10 Endress + Hauser
3 Mounting
3.1 Quick installation guide
L00-FMR240xx-17-00-00-en-004

Micropilot M FMR 240 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
40 lbs. (18 kg).
Do not lift the measuring instrument by its housing in order to transport it.
3.2.3 Storage
Pack the measuring instrument so that it is protected against impacts for storage and
transport. The original packing material provides the optimum protection for this.
The permissible storage temperature is -40 °F to 176 °F (-40 °C to +80 °C).

Mounting Micropilot M FMR 240
12 Endress + Hauser
3.3 Installation conditions
3.3.1 Dimensions
L00-FMR240xx-06-00-00-ae-002
Fig. 2: Dimensions Micropilot M FMR 240

Micropilot M FMR 240 Mounting
Endress + Hauser 13
3.3.2 Engineering hints
Orientation
•Recommended distance (1) wall – outer
edge of nozzle: ~1/6 of tank diameter
(FMR 240: min. 6“ (15 cm)).
•Not in the center (3), interference can
cause signal loss.
•Not above the fill stream (4).
•It is recommended to use a weather
protection cover (2) in order to protect
the transmitter from direct sun or rain.
Assembly and disassembly is simply
done by means of a tension clamp
(→Chap. 8 on Page 62).
L00-FMR2xxxx-17-00-00-xx-001
Tank installations
•Avoid any installations (1), like limit
switches, temperature sensors, etc.,
inside the signal beam (refer to beam
angle see "Beam angle" on Page 14).
•Symmetrical installations (2), i.e.
vacuum rings, heating coils, baffles,
etc., can also interfere with the
measurement.
Optimization options
•Antenna size: the bigger the antenna,
the smaller the beam angle, the less
interference echoes.
•Mapping: the measurement can be
optimized by means of electronic
suppression of interference echoes.
•Antenna alignment: refer to "optimum
mounting position" (see Page 18/20/22/
23).
•Stilling well: a stilling well, respectively a
Wave Guide antenna, can always be
used to avoid interference.
Please contact Endress+Hauser for fur-
ther information. L00-FMR2xxxx-17-00-00-xx-002

Mounting Micropilot M FMR 240
14 Endress + Hauser
Beam angle
The beam angle is defined as the angle αwhere the energy density of the radar waves
reaches half the value of the maximum energy density (3dB-width). Microwaves are also
emitted outside the signal beam and can be reflected off interfering installations. Beam
diameter Was function of antenna type (beam angle α) and measuring distance D:
Antenna size
(horn diameter)
FMR 240
L00-FMR2xxxx-14-00-06-de-027
1½" / 40 mm 2" / 50 mm 3" / 80 mm 4" / 100 mm
Beam angle α23° 18° 10° 8°
Measuring
distance (D)
Beam diameter (W)
1½" / 40 mm 2" / 50 mm 3" / 80 mm 4" / 100 mm
10 ft / 3 m 4.07 ft /
1.22 m
3.17 ft /
0.95 m
1.75 ft /
0.52 m
1.40 ft /
0.42 m
20 ft / 6 m 4.07 ft /
1.22 m
6.34 ft /
1.90 m
3.50 ft /
1.05 m
2.80 ft /
0.84 m
30 ft / 9 m 8.14 ft /
2.44 m
9.50 ft /
2.85 m
5.25 ft /
1.57 m
4.20 ft /
1.26 m
40 ft / 12 m 12.67 ft /
3.80 m
7.00 ft /
2.10 m
5.59 ft /
1.68 m
49 ft / 15 m 15.52 ft /
4.75 m
8.57 ft /
2.62 m
6.85 ft /
2.10 m
65 ft / 20 m 
11.37 ft /
3.50 m 9.09 ft /
2.80 m

Micropilot M FMR 240 Mounting
Endress + Hauser 15
Measuring conditions
!Note!
Please use FMR 230, respectively FMR 231, for boiling surfaces or in case of a
tendency for foaming. The maximum measuring range of the FMR240 may
decrease in case of heavy steam development, depending on density, temperature
and composition of the steam (→please use FMR 230, respectively FMR 231).
Please use FMR 230 in stilling well for the measurement of ammonia NH3.
•The measuring range begins, where the beam hits the tank bottom. Particularly with
dish bottoms or conical outlets the level cannot be detected below this point.
•In case of media with a low dielectric constant (groups A and B), the tank bottom can
be visible through the medium at low levels. In order to guarantee the required
accuracy in these cases, it is recommended to position the zero-point at a distance C
above the tank bottom (see Fig.).
•For FMR 240 the end of measuring range should not be chosen closer than A
(see Fig.) to the tip of the antenna, especially if there is development of condensate.
•The smallest possible measuring range Bdepends on the antenna version (see Fig.).
•The tank diameter should be greater than D(see Fig.), the tank height at least H
(see Fig.).
•Depending on its consistency, foam can either absorb microwaves or reflect them off
the foam surface. Measurement is possible under certain conditions.
L00-FMR2xxxx-17-00-00-en-008
A [inch/mm] B [inch/m] C [inch/mm] D [inch/m] H [ft/m]
FMR 240 2 / 150 > 8 / > 0.2 2-6 / 50-150 > 8 / > 0.2 > 1 / > 0.3

Mounting Micropilot M FMR 240
16 Endress + Hauser
Measuring range
The usable measuring range depends on the size of the antenna, the reflectivity of the
medium, the mounting location and eventual interference reflections. The following
tables describe the groups of media as well as the achievable measuring range as a
function of application and media group. If the dielectric constant of a medium is
unknown, it is recommended to assume media group B to ensure a reliable
measurement.
Measuring range depending on vessel type, conditions, and product for
Micropilot M FMR 240:
Product class DK (εr) Examples
A1.4 to 1.9 non-conducting liquids, e.g. liquefied gas1
1) Treat Ammonia NH3 as a medium of group A, i.e. always use a stilling well and FMR 230.
B1.9 to 4 non-conducting liquids, e.g. benzene, oil, toluene, …
C4 to 10 e.g. concentrated acids, organic solvents, esters, aniline, alcohol,
acetone, …
D> 10 conducting liquids, e.g. aqueous solutions, dilute acids and alkalis
Product class Storage tank
Calm product surface
(e.g. intermittent filling,
filling from bottom,
immersion tubes).
Buffer tank
Moving surfaces
(e.g. continuous filling, from above,
mixing jets).
Process tank with agitator
Turbulent surface.
Single stage agitator <60 RPM.
Measuring range Measuring range Measuring range
FMR 240 (horn dia): 1½" /
40 mm
2" /
50 mm
3" /
80 mm
4" /
100mm
1½" /
40 mm
2" /
50 mm
3" /
80 mm
4" /
100mm
1½" /
40 mm
2" /
50 mm
80 mm /
3"
100mm/
4"
ADK(εr)=1.4 to 1.9 to use a stilling well (65 ft / 20 m) or Wave Guide antenna1(12.5 ft / 3.8 m)
BDK(εr)=1.9 to 4 10 ft/
3m
16 ft/
5m
33 ft/
10 m
49 ft/
15 m
7 ft/
2m
8 ft/
2.5 m
16 ft/
5m
25 ft/
7.5 m
3 ft/
1m
5 ft/
1.5 m
7 ft/
2m
10 ft/
3m
CDK(εr)=4 to 10 20 ft/
6m
33 ft/
10 m
49 ft/
15 m
65 ft/
20 m
10 ft/
3m
16 ft/
5m
25 ft/
7.5 m
33 ft/
10 m
5 ft/
1.5 m
7 ft/
2m
10 ft/
3m
16 ft/
5m
DDK(εr)>10 30 ft/
9m
49 ft/
15 m
65 ft/
20 m
65 ft/
20 m
16 ft/
5m
25 ft/
7.5 m
33 ft/
10 m
42 ft/
12.5 m
7 ft
2m
10 ft/
3m
16 ft/
5m
23 ft/
7m
1) In the event of horizontal stress (e.g. agitators), mechanical support is required or provide the Wave Guide antenna with a protective pipe.

Micropilot M FMR 240 Mounting
Endress + Hauser 17
Measuring range depending on vessel type, conditions, and product for
Micropilot M FMR 240 (continued):
Product class Stilling well Bypass Wave Guide antenna
Measuring range Measuring range Measuring range
FMR 240 (horn dia): 1½"/40mm to 4"/100mm 2"/50mm to 4"/100mm Wave Guide antenna1
1) In the event of horizontal stress (e.g. agitators), mechanical support is required or provide the Wave
Guide antenna with a protective pipe.
ADK(εr)=1.4 to 1.9 65 ft /
20 m
to use the Wave Guide
antenna
depending
on pipe length,
max. 12.5 ft (3.8 m)
BDK(εr)=1.9 to 4 65 ft /
20 m
to use the Wave Guide
antenna
CDK(εr)=4 to 10 65 ft /
20 m
65 ft /
20 m
DDK(εr)>10 65 ft /
20 m
65 ft /
20 m

Mounting Micropilot M FMR 240
18 Endress + Hauser
3.4 Installation instructions
3.4.1 Mounting kit
Beside a key AF 60 for installation you need the following tool:
•0.1"/4 mm Allen wrench for turning the housing.
3.4.2 Installation in tank (free space)
Optimum mounting position
L00-FMR240xx-17-00-00-en-001

Micropilot M FMR 240 Mounting
Endress + Hauser 19
Measurement from the outside through plastic walls
•Observe engineering hints on Page 13.
•If possible, use an antenna 4" / 100 mm.
Standard installation
When mounting in a tank, please observe
engineering hints on Page 13 and the
following points:
•Marker is aligned towards tank wall.
•The marker is always exactly in the
middle between two bolt-holes in the
flange.
•After mounting, the housing can be
turned 350° in order to simplify access to
the display and the terminal
compartment.
•For optimum measurement, the horn
antenna should extend below the
nozzle. Nozzle heights up to 19.7" (500
mm) can be accepted if this should not
be possible due to mechanical reasons.
Note!
Please contact Endress+Hauser for
application with higher nozzle.
•The horn antenna must be aligned
vertically.
Caution!
A not vertically aligned horn antenna
can reduce the maximum range.
L00-FMR240xx-17-00-00-de-002
Antenna size 1½" / 40 mm 2" / 50 mm 3" / 80 mm 4" / 100 mm
D [inch/mm] 1.5 / 40 1.9 / 48 3 / 75 3.7 / 95
H [inch/mm] < 3.4 / < 85 < 3.4 / < 85 < 3.4 / < 85 < 3.4 / < 85
Penetrated material PE PTFE PP Perspex
DK / εr2.32.12.33.1
Optimum thickness [inch/mm]1
1) Other possible values for the thickness are multiples of the values listed
(i.e. PE: 0.30" (7.6 mm), 0.45" (11.4 mm), …)
0.15 / 3.8 0.16 / 4.0 0.15 / 3.8 0.13 / 3.3

Mounting Micropilot M FMR 240
20 Endress + Hauser
3.4.3 Installation in stilling well
Optimum mounting position
L00-FMR244xx-17-00-00-en-004
Standard installation
For installations in a stilling well, follow the engineering hints on Page 13 and note the
following points:
•Marker is aligned toward slots.
•The marker is always exactly in the middle between two bolt-holes in the flange.
•After mounting, the housing can be turned 350° in order to simplify access to the
display and the terminal compartment.
•Measurements can be performed through an open full bore ball valve without any
problems.
Recommendations for the stilling well
At the construction of a stilling well, please note the following points:
•Metal (no enamel coating, plastic coating on request).
•Constant diameter.
•Weld seam as smooth as possible and on the same axis as the slots.
•Slots offset 180° (not 90°).
•Slot width respectively diameter of holes max. 1/10 of pipe diameter, de-burred.
Length and number do not have any influence on the measurement.
•Select horn antenna as big as possible. For intermediate sizes (i.e. 3½" (90 mm))
select next larger antenna and adapt it mechanically.
•At any transition (i.e. when using a ball valve or mending pipe segments), no gap may
be created exceeding 0.004" (0.1 mm).
•The stilling well must be smooth on the inside (average roughness Rz ≤30). Use
extruded or parallel welded stainless steel pipe. An extension of the pipe is possible
with welded flanges or pipe sleeves. Flange and pipe have to be properly aligned at
the inside.
•Do not weld through the pipe wall. The inside of the stilling well must remain smooth.
In case of unintentional welding through the pipe, the weld seam and any unevenness
on the inside need to be carefully removed and smoothed. Otherwise, strong
interference echoes will be generated and material buildup will occur.
•Particularly on smaller nominal widths it needs to be observed that flanges are welded
to the pipe such that they allow for a correct orientation (marker aligned toward slots).