Endress+Hauser Micropilot M FMR245 User manual

BA252F/00/en/05.08
71073076
Valid as of software version:
01.05.00
Operating Instructions
Micropilot M FMR245
Level-Radar
8

Brief operating instructions Micropilot M FMR245 with PROFIBUS PA
2Endress+Hauser
Brief operating instructions
L00-FMR250xx-19-00-00-en-020
!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
optimising the measuring point and converting the measured values.
An overview of all device functions can be found on Page 108.
The operating manual BA291F/00/en "Description of the instrument functions for Micropilot M"
provides an extensive description of all device functions, which can be found on the enclosed
CD-ROM.
E
+
-
+
E
+
-
E
E
-
… …
…
KA235F/00/a2/08.06
52025245
…
20 mA
100%
4mA
0%
D
L
F
E
52025245
Micropilot M FMR240/244/245/250 - Brief operating instructions
- dome
ceiling
- horizontal
cyl.
- bypass
…
- unknown
- metal silo
- concrete
silo
- bin / bunker
…
- liquid
- solid
- unknown
- DC: <1.9
- DC: 1.9 … 4
-DC:4…10
- DC: >10
- standard
- calm
surface
- add.
agitator
…
input E
(see sketch)
input E
(see sketch)
input F
(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
002
tank
shape
00A
vessel /
silo
004
process
cond.
005
empty
calibr.
005
empty
calibr.
006
full
calibr.
006
full
calibr.
007
pipe
diameter
008
dist./
meas value
051
check
distance
003
medium
cond.
00B
medium
cond.
00C
proscess
cond.
052
range of
mapping
053
start
mapping
008
dist./
meas value
- envel. curve
- incl. FAC
- incl. cust. map
- single curve
- cyclic
= 100: unlocked
100: locked≠
0E1
plot settings
0E2
recording
curve
0A1
previous error
0A4
unlock parameter
HART
}
Contrast: +or +
- unknown
- DC: 1.6...1.9
- DC: 1.9 …2.5
- DC: 2.5 …4
...
- standard
- fast change
- slow change
- test: no filter flange:
reference point of
measurement
threaded
connection
1½” (R1
:
reference point of
measurement
BSPT ½”)
or 1½ NPT
001
media
type
= 2457: unlocked
2457: locked≠PA, FF
}
Solid Liquid

Micropilot M FMR245 with PROFIBUS PA 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 instructions . . . . . . . . . . . . . . . . . . . . . 22
3.5 Post-installation check . . . . . . . . . . . . . . . . . . . . . . 27
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 28
4.1 Quick wiring guide . . . . . . . . . . . . . . . . . . . . . . . . 28
4.2 Connecting the measuring unit . . . . . . . . . . . . . . . 31
4.3 Recommended connection . . . . . . . . . . . . . . . . . . 32
4.4 Degree of protection . . . . . . . . . . . . . . . . . . . . . . . 32
4.5 Post-connection check . . . . . . . . . . . . . . . . . . . . . . 32
5 Operation . . . . . . . . . . . . . . . . . . . . . . 33
5.1 Quick operation guide . . . . . . . . . . . . . . . . . . . . . . 33
5.2 Display and operating elements . . . . . . . . . . . . . . . 35
5.3 Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.4 Display and acknowledging error messages . . . . . . 41
5.5 PROFIBUS communication . . . . . . . . . . . . . . . . . . 42
6 Commissioning. . . . . . . . . . . . . . . . . . 58
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.2 Switching on the measuring device . . . . . . . . . . . . 58
6.3 Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.4 Basic Setup with the VU 331 . . . . . . . . . . . . . . . . . 61
6.5 Basic Setup with the Endress+Hauser
operating program . . . . . . . . . . . . . . . . . . . . . . . . . 76
7 Maintenance. . . . . . . . . . . . . . . . . . . . 80
8 Accessories. . . . . . . . . . . . . . . . . . . . . 81
9 Trouble-shooting . . . . . . . . . . . . . . . . 84
9.1 Trouble-shooting instructions . . . . . . . . . . . . . . . . 84
9.2 System error messages . . . . . . . . . . . . . . . . . . . . . . 85
9.3 Application errors in liquids . . . . . . . . . . . . . . . . . . 87
9.4 Application errors in solids . . . . . . . . . . . . . . . . . . . 89
9.5 Orientation of the Micropilot . . . . . . . . . . . . . . . . . 91
9.6 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
9.7 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
9.8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
9.9 Software history . . . . . . . . . . . . . . . . . . . . . . . . . . 100
9.10 Contact addresses of Endress+Hauser . . . . . . . . . . 101
10 Technical data . . . . . . . . . . . . . . . . . . 102
10.1 Additional technical data . . . . . . . . . . . . . . . . . . . 102
11 Appendix. . . . . . . . . . . . . . . . . . . . . . 108
11.1 Operating menu PROFIBUS PA . . . . . . . . . . . . . . 108
11.2 Description of functions . . . . . . . . . . . . . . . . . . . . 110
11.3 Function and system design . . . . . . . . . . . . . . . . . 111
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Safety instructions Micropilot M FMR245 with PROFIBUS PA
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The Micropilot M FMR 245 is a compact radar level transmitter for the continuous, contactless
measurement of liquids, pastes and sludge. 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 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
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 standards and 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 FMR245 with PROFIBUS PA 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
#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
Explosion protection
0Device certified for use in explosion hazardous area
If the device 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
Electrical symbols
%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
Temperature resistance of the connection cables
States, that the connection cables must be resistant to a temperature of at least 85 °C.
t >85°C

Identification Micropilot M FMR245 with PROFIBUS PA
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
The following technical data are given on the instrument nameplate:
L00-FMR2xxxx-18-00-00-en-002
Fig. 1: Information on the nameplate of the Micropilot M with PROFIBUS PA (example)
2.1.2 Ordering structure
Ordering structure Micropilot M FMR245
10 Approval:
A Non-hazardous area
F Non-hazardous area, WHG
2 ATEX II 1/2G Ex ia IIC T6, XA, Note safety instruction (XA) (electrostatic charging)!
7 ATEX II 1/2G Ex ia IIC T6, WHG, XA, Note safety instruction (XA) (electrostatic charging)!
5 ATEX II 1/2G Ex d [ia] IIC T6, XA, Note safety instruction (XA) (electrostatic charging)!
H ATEX II 1/2G Ex ia IIC T6, ATEX 3D, XA, Note safety instruction (XA) (electrostatic charging)!
B ATEX II 1/2G, ATEX II 1/2D, XA
ATEX II 1/2G Ex ia IIC T6 Note safety instruction (XA) (electrostatic charging)!
G ATEX II 3G Ex nA II T6
S FM IS - Cl.I Div.1 Gr. A-D
T FM XP - Cl.I Div.1 Group A-D
N CSA General Purpose
U CSA IS - Cl.I Div.1 Group A-D
V CSA XP - Cl.I Div.1 Group A-D
K TIIS EEx ia IIC T4
L TIIS EEx d [ia] IIC T4
D IECEx Zone 0/1, Ex ia IIC T6, XA, Note safety instruction (XA) (electrostatic charging)!
E IECEx Zone 0/1, Ex d (ia) IIC T6, XA, Note safety instruction (XA) (electrostatic charging)!
I NEPSI Ex ia IIC T6
J NEPSI Ex d (ia) IIC T6
R NEPSI Ex nAL IIC T6
Y Special version, to be specified
FMR245- Product designation (part 1)

Micropilot M FMR245 with PROFIBUS PA Identification
Endress+Hauser 7
Ordering structure Micropilot M FMR245 (continued)
20 Antenna:
B 50mm/2", -40...200°C/-40...392°F
C 80mm/3", -40...200°C/-40...392°F
F 50mm/2", -40...200°C/-40...392°F, gas-tight feed through
G 80mm/3", -40...200°C/-40...392°F, gas-tight feed through
3 50mm/2", -40...150°C/-40...302°F
4 80mm/3", -40...150°C/-40...302°F
9 Special version, to be specified
30 Process Connection:
CFK DN50 PN10/16, PTFE>316L flange EN1092-1 (DIN2527)
CMK DN80 PN10/16, PTFE>316L flange EN1092-1 (DIN2527)
CQK DN100 PN10/16, PTFE>316L flange EN1092-1 (DIN2527)
CWK DN150 PN10/16, PTFE>316L flange EN1092-1 (DIN2527)
AEK 2" 150lbs, PTFE>316L flange ANSI B16.5
ALK 3" 150lbs, PTFE>316L flange ANSI B16.5
APK 4" 150lbs, PTFE>316L flange ANSI B16.5
AVK 6" 150lbs, PTFE>316L flange ANSI B16.5
KEK 10K 50A, PTFE>316L flange JIS B2220
KLK 10K 80A, PTFE>316L flange JIS B2220
KPK 10K 100A, PTFE>316L flange JIS B2220
KVK 10K 150A, PTFE>316L flange JIS B2220
MRK DIN11851 DN50 PN25, PTFE>316L
MTK DIN11851 DN80 PN25, PTFE>316L
TDK Tri-Clamp ISO2852 DN51 (2"), PTFE>316L
TEK Tri-Clamp ISO2852 DN63.5 (2-1/2"), PTFE>316L
TFK Tri-Clamp ISO2852 DN76.1 (3"), PTFE>316L
THK Tri-Clamp ISO2852 DN101.6 (4"),PTFE>316L
YY9 Special version, to be specified
40 Output; Operation:
A 4-20mA SIL HART; 4-line display VU331, envelope curve display on site
B 4-20mA SIL HART; w/o display, via communication
K 4-20mA SIL HART; Prepared for FHX40, remote display (Accessory)
C PROFIBUS PA; 4-line display VU331, envelope curve display on site
D PROFIBUS PA; w/o display, via communication
L PROFIBUS PA; Prepared for FHX40, remote display (Accessory)
E FOUNDATION Fieldbus; 4-line display VU331, envelope curve display on site
F FOUNDATION Fieldbus; w/o display, via communication
M FOUNDATION Fieldbus; Prepared for FHX40, remote display (Accessory)
Y Special version, to be specified
50 Housing:
A F12 Alu, coated IP65 NEMA4X
B F23 316L IP65 NEMA4X
C T12 Alu, coated IP65 NEMA4X, separate conn. compartment
D T12 Alu, coated IP65 NEMA4X+OVP, separate conn. compartment,
OVP=overvoltage protection
Y Special version, to be specified
FMR245- Product designation (part 1)

Identification Micropilot M FMR245 with PROFIBUS PA
8Endress+Hauser
Ordering structure Micropilot M FMR245 (continued)
60 Cable Entry:
2GlandM20
3ThreadG1/2
4 Thread NPT1/2
5PlugM12
6 Plug 7/8"
9 Special version, to be specified
70 Additional Option:
A Basic version
C EN10204-3.1 material, pressurized, (316/316L pressurized) inspection certificate
F Advanced dynamics (max MB=70m) MB=measuring range
G Advanced dynamics (max MB=70m), EN10204-3.1 (316L pressurized)
inspection certificate MB=measuring range
S GL/ABS/NK marine certificate
Y Special version, to be specified
FMR245- Complete product designation

Micropilot M FMR245 with PROFIBUS PA 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
• Endress+Hauser oprating program (on the enclosed CD-ROM
• Accessories (→Chap. 8)
Accompanying documentation:
• Short manual (basic setup/troubleshooting): housed in the instrument
• Operating manual (this manual)
• Approval documentation: if this is not included in the operating manual.
!Note!
The operating manual "Description of Instrument Functions" you can be found on the enclosed CD-
ROM.
2.3 Certificates and approvals
CE mark, declaration of conformity
The device 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 device complies with the applicable
standards and regulations as listed in the EC declaration of conformity and thus complies with the
statutory requirements of the EC directives. Endress+Hauser confirms the successful testing of the
device 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
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
PROFIBUS®
Registered trademark of the PROFIBUS Trade Organisation, Karlsruhe, Germany

Mounting Micropilot M FMR245 with PROFIBUS PA
10 Endress+Hauser
3Mounting
3.1 Quick installation guide
L00-FMR245xx-17-00-00-en-001
DN50
ANSI 2”
DN50
ANSI 2”
DN50
ANSI 2”
DN80…150
ANSI 3…6”
DN80…150
ANSI 3…6”
DN80…150
ANSI 3…6”
90°
90°
90°
90°
90°
90°
3
3
1
1
2
2
#
90°
90°
90°
90°
90°
90°
90°
90°
9
90°90°
90°
90°
F12/F23 housing
T12 housing
mark at instrument flange
mark at instrument flange
mark at instrument flange
Turn housing
Observe orientation when installing!
Installation in tank (free space):
Mark on process connector facing the nearest tank wall!
Installation in stilling well:
Mark on process connector pointed towards the slots or vent holes!
Installation in bypass:
Mark on process connector 90° offset from the tank connections!
The housing can be turned 350°
in order to simplify access to the
display and the terminal compartment
Allen key
4 mm/0.1”

Micropilot M FMR245 with PROFIBUS PA 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 housing 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.

Mounting Micropilot M FMR245 with PROFIBUS PA
12 Endress+Hauser
3.3 Installation conditions
3.3.1 Dimensions
Housing dimensions
L00-F12xxxx-06-00-00-en-001
L00-T12xxxx-06-00-00-en-001
L00-F23xxxx-06-00-00-en-001
ENDRESS+HAUSER
65 78
max. 110
85
150
Ø 129
(Aluminium)
F12 housing
ENDRESS+HAUSER
78
85
65
162
max. 100 94
Ø 129
(Aluminium)
T12 housing
max. 94 104
Ø 129
150
40
(316L)
F23 housing

Micropilot M FMR245 with PROFIBUS PA Mounting
Endress+Hauser 13
Micropilot M FMR 245 - process connection, new type of antenna
L00-FMR245xx-06-00-00-en-006
Var. DN 50 Var. DN 80
2” + 3”
Tri - Clamp
ISO 2852
4”
Tri - Clamp
ISO 2852
Tri-clamp 2” 3” 4”
A [ mm ] 64 91 119
DN 50 DN 80
A [ mm ] 68.5 100
2” 3” 4” 6”
b [ mm]
D [ mm ]
A [ mm ]
19.1 23.9 23.9 25.4
152.4 190.5 228.6 279.4
92 127 158 212
2” 3” 4” 6”
b [ mm]
D [ mm ]
A [ mm ]
19.1 23.9 23.9 25.4
152.4 190.5 228.6 279.4
92 127 158 212
DN 50 DN 80 DN 100 DN 150
b [ mm]
D [ mm ]
A [ mm ]
20 20 20 22
165 200 220 285
102 138 158 212
flange DN 50
or equivalent
flange DN 80 ... 150
or equivalent
DN 50
dairy coupling
DIN 11851
DN 80
dairy coupling
DIN 11851
plating from PTFE (FDA - listed TFM 1600, meets USP Class VI conformity)
Flange to EN 1092-1 (agreeable to DIN 2572) Flange to JIS B2220
Flanges to ANSI B16.5 Tri - Clamp and dairy coupling
Flange Flange
for PN 16 for 10K
Flange
for 150 lbs
dairy coupling
F12 / T12 / F23 housing
Group 20 / Code B, F Group 20 / Code C, G
488
13.8
b
Ø48
4115
28.6
b
Ø75
5
Ø48
2.6 88
13.8
Ø48
5
28.6
Ø75
28.6
115
2.6
Ø75
13.8
ØD
ØD
ØA
ØA
ØA
ØA
ØA
ØA

Mounting Micropilot M FMR245 with PROFIBUS PA
14 Endress+Hauser
Micropilot M FMR 245 - process connection, old type of antenna
L00-FMR245xx-06-00-00-en-005
b
b
12
18
a
a
4
4
2,6
2,6
ØA
ØA ØAØA
ØD
ØD
Ø44
Ø75 ØC
ØC
Ø70
Ø60 Ø60
Ø70
116
180
b [mm]
b [mm]
b [mm]
a [mm]
DN 80
DN 80
3”
2½”
DN 50
DN 50
2”
2”
20
18
23.9
18
18
16
19.1
18
200
138
185
127
190.5
77.5
127
58
165
102
155
96
152.4
64
92
46
D [mm]
A [mm]
D [mm]
A [mm]
D [mm]
A [mm]
A [mm]
C [mm]
220
158
210
151
228.6
91
158
70
20
18
23.9
18
DN 100
DN 100
4”
3”
285
212
280
212
279.4
212
22
22
25.4
DN 150
DN 150
6”
Ø 60.5 Ø 60.5
Ø80
2½"/3" Tri-Clamp
ISO 2852
2" Tri-Clamp
ISO 2852
Tri-Clamp
Ø70Ø70
Ø60Ø60
116
116
Ø 60.5Ø 60.5
Flange DN 50
or equivalent
Flange DN 80…150
or equivalent
for 10K
Flange
Flange to JIS B2220
for 150 lbs
Flange
Flange to ANSI B16.5
Process connection
for PN 16
Flange
Flange to EN 1092-1
(agreeable to DIN 2527)
PTFE
(FDA-listed TFM 1600,
meets USP Class VI conformity)
F12 / T12 / F23 housing
Group 20 / Code 3, 4

Micropilot M FMR245 with PROFIBUS PA Mounting
Endress+Hauser 15
3.3.2 Engineering hints
Orientation
• Recommended distance (1) wall – outer
edge of nozzle: ~1/6 of tank diameter.
Nevertheless the device should not be
installed closer than 15 cm (6“) to the
tankwall.
• Not in the centre (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 81).
L00-FMR2xxxx-17-00-00-xx-010
1
234
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 17).
• 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"
• Stilling well: a stilling well can always be used
to avoid interference.
• Metallic screens (3) mounted at a slope spread
the radar signals and can, therefore, reduce
interference echoes.
Please contact Endress+Hauser for further infor-
mation. L00-FMR2xxxx-17-00-00-xx-011
1
3
2
a

Mounting Micropilot M FMR245 with PROFIBUS PA
16 Endress+Hauser
Measurement in a plastic tank
If the outer wall of the tank is made of a non-conductive material (e.g. GRP), microwaves can also
be reflected off interfering installations outside the signal beam (e.g. metallic pipes (1), ladders (2),
grates (3), …). Therefore, there should be no such interfering installations in the signal beam.
L00-FMR2xxxx-17-00-00-xx-013
Please contact Endress+Hauser for further information.
VH
00
VH
00
Endress+Hauser
Endress+Hauser
-+
VH
ENDRESS+HAUSER
MICROPILOTII
IP65
OrderCode:
Ser.-No.:
Messbereich
Measuringrange
U16...36VDC
4...20mA
max.20m
MadeinGermany Maulburg
MadeinGermany Maulburg
T>
70°C:
At>85°C
VH
00
VH
00
Endress+Hauser
Endress+Hauser
-+
VH
ENDRESS+HAUSER
MICROPILOTII
IP65
OrderCode:
Ser.-No.:
Messbereich
Measuringrange
U16...36VDC
4...20mA
max.20m
MadeinGermany Maulburg
MadeinGermany Maulburg
T>
70°C:
At>85°C
VH
00
VH
00
Endress+Hauser
Endress+Hauser
-+
VH
ENDRESS+HAUSER
MICROPILOTII
IP65
OrderCode:
Ser.-No.:
Messbereich
Measuringrange
U16...36VDC
4...20mA
max.20m
MadeinGermany Maulburg
MadeinGermany Maulburg
T>
70°C:
At>85°C
1
2
3

Micropilot M FMR245 with PROFIBUS PA Mounting
Endress+Hauser 17
Beam angle
The beam angle is defined as the angle a where 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 245
L00-FMR2xxxx-14-00-06-de-027
50 mm (2") 80 mm (3")
Beam angle α18° 10°
Measuring
distance (D)
Beam diameter (W)
50 mm (2") 80 mm (3")
3 m (10 ft) 0.95 m (3.17 ft) 0.53 m (1.75 ft)
6 m (20 ft) 1.90 m (6.34 ft) 1.05 m (3.50 ft)
9 m (30 ft) 2.85 m (9.50 ft) 1.58 m (5.25 ft)
12 m (40 ft) 3.80 m (12.67 ft) 2.10 m (7.00 ft)
15 m (49 ft) 4.75 m (15.52 ft) 2.63 m (8.57 ft)
20 m (65 ft) 6.34 m (20.59 ft) 3.50 m / 11.37 ft
25 m (82 ft) 7.29 m (25.98 ft) 4.37 m (14.35 ft)
30 m (98 ft) 9.50 m (31.04 ft) 5.25 m (17.15 ft)
35 m (114 ft) 11.09 m (36.11 ft) 6.12 m (19.95 ft)
40 m (131 ft) 12.67 m (41.50 ft) 7.00 m (22.92 ft)
45 m (147 ft) — 7.87 m (25.72 ft)
60 m (196 ft) — 10.50 m (34.30 ft)
a
D
W
a
D
_
=2
2..
tan
W

Mounting Micropilot M FMR245 with PROFIBUS PA
18 Endress+Hauser
Measuring conditions
L00-FMR2xxxx-17-00-00-de-013
• 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 (low height C). Reduced accuracy has to be expected in this
range. If this is not acceptable, we recommend positioning the zero point at a distance C(see Fig.)
above the tank bottom in these applications.
• In principle it is possible to measure up to the tip of the antenna with FMR230/231/240.
However, due to considerations regarding corrosion and build-up, the end of the measuring range
should not be chosen any closer than A(see Fig.) to the tip of the antenna.
For FMR244/245, 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.).
Note!
• In case of boiling surfaces, bubbling or tendency for foaming, use FMR230 or FMR231.
Depending on its consistence, foam can either absorb microwaves or reflect them off the foam
surface. Measurement is possible under certain conditions.
• In case of heavy steam development or condensate the max. measuring range of FMR240 may
decrease depending on density, temperature and composition of the steam →use FMR230 or
FMR231.
• For the measurement of absorbing gases such as ammonia NH3or some fluorocarbons 1)),
please use FMR230 in a stilling well.
1) Affected compounds are e.g. R134a, R227, Dymel 152a.
100%
0%
B
A
C
H
ØD
A [mm (inch)] B [m (inch)] C [mm (inch)] D [m (inch)] H [m (inch)]
FMR245 200 (8) > 0,2 (> 8) 50...250 (2...10) > 0,2 (> 8) > 0,3 (> 12)

Micropilot M FMR245 with PROFIBUS PA Mounting
Endress+Hauser 19
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 maximum configurable range is:
• 20 m (65 ft) for Micropilot M FMR23x,
• 40 m (131 ft) for Micropilot M FMR24x (basic version),
70 M (229 ft) for Micropilot M FMR24x (with additional option F (G), see "ordering
information"),
• 70 m (229 ft) for Micropilot M FMR250 (further informations see TI390F/00/en).
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.
Media group DC (εr) Examples
A1,4...1,9 non-conducting liquids, e.g. liquefied gas1))
1) Treat Ammonia NH3as a medium of group A, i.e. use FMR230 in a stilling well.
B1,9...4 non-conducting liquids, e.g. benzene, oil, toluene, …
C4...10 e.g. concentrated acids, organic solvents, esters, aniline, alcohol, acetone, …
D> 10 conducting liquids, e.g. aqueous solutions, dilute acids and alkalis

Mounting Micropilot M FMR245 with PROFIBUS PA
20 Endress+Hauser
Measuring range depending on vessel type, conditions and product for
Micropilot M FMR245
Standard:
max. measuring range = 40 m (131 ft)
With additional option F (G):
max. measuring range = 70 m (229 ft)
min. measuring range = 5 m (16 ft)
FMR245: 50 mm (2") 80 mm (3")
Storage tank
Calm product surface (e.g. intermittent
filling, filling from bottom, immersion
tubes).
Measuring range [m (ft)]
FMR245: 50 mm (2") 80 mm (3")
Buffer tank
Moving surfaces (e.g. continuous
filling, from above, mixing jets).
Measuring range [m (ft)]
AB
12
(39)
8
(26)
25
(82)
CD
8
(26)
4
(13)
15
(49)
35
(110)
40
(131)
AB
10
(32)
60
(197)
CD
15
(49)
8
(26)
30
(98)
40
(131)
40
(131)
20
(65)
BB
5
(16)
15
(49)
10
(32)
CCDD
3
(9.9)
7.5
(24)
10
(32)
AB
10
(32)
5
(16)
25
(82)
15
(49)
CD
2.5
(8)
10
(32)
15
(49)
5
(16)
*