Endress+Hauser Levelflex M FMP41C User manual

BA00364F/00/EN/13.10
71120284
Valid as of software version:
01.08.zz
Operating Instructions
Levelflex M FMP41C
Interface measurement
Guided Level-Radar

Levelflex M FMP41C 4 to 20 mA HART
2Endress+Hauser
Brief Operating Instructions
L00-FMP4xIxx-19-00-00-en-005
!Note!
These Operating Instructions explain how to install and commission the level transmitter.
All functions that are required for a typical measuring task are taken into account here.
In addition, the Levelflex M provides many other functions for optimizing the measuring point and
converting measured values. These functions are not included in these Operating Instructions.
An overview of all the device functions can be found on →ä72.
The Operating Instructions BA00366F/00/EN "Description of Instrument Functions" provides an
extensive description of all device functions, which can be found on the enclosed CD-ROM.
The Operating Instructions can also be found on our homepage: www.endress.com
E
+
-
+
E
+
-
E
-
… …
…
KA283F/00/a2/03.09
71079005
DK2
DK1
SD
SD
UB
UB
DL
LL
LL
F
F
LILI
UP
DI
DI
E
LN
LN
E
71079005
Levelflex M - Brief operating instructions
input E
(see sketch)
input F
(see sketch) displayed
D und D are
LI
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
059
upper block.
dist
003
medium
property
008
dist./
meas value
- envel. curve
- substracted
signal
- mapping
- single curve
- cyclic
= 100: unlocked
¹ 100: locked
09A
plot settings
09B
recording
curve
0A1
previous
error
0A4
unlock
parameter
(333 =
reset
customer
parameters)
0A3
reset
threaded
connection
1 ½
(G 1
:
reference point of
measurement
¾ or BSP
¾ or G ½)
¾ or 1½ NPT
03
length
adjustment
032
probe
033
probe
length
034
determine
length
0.1 - 2
0E
envelope curve
Contrast: +or +
- partially
filled
- fully
flooded
- standard
- fast
change
- test: no filter
- slow
change
If shortened
please enter probe length here.
E = empty calibr. (= zero) - setting in 005
F = full calibr. (= span) - setting in 006
D = distance interface (distance flange / DK ) - display in 0A6
L = level interface (distance probe end / DK ) - display in 0A5
D = distance complete level - display in 0A5
L = level complete - display in 0A6
LN = probe length - setting in 033
UB = upper blocking distance - setting in 059
UP = thickness upper medium
SD = safety distance - setting in 015
I
I
L
L
2
1
flange:
reference point of
measurement

Levelflex M FMP41C 4 to 20 mA HART 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 and process safety . . . . . . . . . . . . 4
1.4 Safety conventions and icons . . . . . . . . . . . . . . . . . . 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 Installation . . . . . . . . . . . . . . . . . . . . . 10
3.1 Incoming acceptance, transport, storage . . . . . . . . . 10
3.2 Installation conditions . . . . . . . . . . . . . . . . . . . . . . 11
3.3 General information on interface measurement . . . 13
3.4 Special information on interface measurement . . . . 15
3.5 Installation instructions . . . . . . . . . . . . . . . . . . . . . 16
3.6 Post-installation check . . . . . . . . . . . . . . . . . . . . . . 20
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Quick wiring guide . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Connecting the measuring unit . . . . . . . . . . . . . . . 23
4.3 Recommended connection . . . . . . . . . . . . . . . . . . 26
4.4 Degree of protection . . . . . . . . . . . . . . . . . . . . . . . 26
4.5 Post-connection check . . . . . . . . . . . . . . . . . . . . . . 26
5 Operation . . . . . . . . . . . . . . . . . . . . . . 27
5.1 Quick operation guide . . . . . . . . . . . . . . . . . . . . . . 27
5.2 Display and operating elements . . . . . . . . . . . . . . . 29
5.3 Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.4 Displaying and acknowledging error messages . . . . 34
5.5 HART communication . . . . . . . . . . . . . . . . . . . . . . 35
6 Commissioning. . . . . . . . . . . . . . . . . . 37
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2 Switching on the measuring device . . . . . . . . . . . . 37
6.3 Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.4 Basic Setup with the VU331 . . . . . . . . . . . . . . . . . 40
6.5 Envelope curve with VU331 . . . . . . . . . . . . . . . . . 46
6.6 Function "Envelope Curve Display" (0E3) . . . . . . . 47
6.7 Basic Setup with the Endress+Hauser
operating program . . . . . . . . . . . . . . . . . . . . . . . . . 50
7 Maintenance. . . . . . . . . . . . . . . . . . . . 53
7.1 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.2 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.3 Repairs to Ex-approved devices . . . . . . . . . . . . . . . 53
7.4 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8 Accessories . . . . . . . . . . . . . . . . . . . . . 54
8.1 Weather protection cover . . . . . . . . . . . . . . . . . . . . 54
8.2 Welding boss for 43 mm adapter . . . . . . . . . . . . . . 54
8.3 Remote display and operation FHX40 . . . . . . . . . . . 55
8.4 Centering disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.5 Commubox FXA195 HART . . . . . . . . . . . . . . . . . . 56
8.6 Commubox FXA291 . . . . . . . . . . . . . . . . . . . . . . . 56
8.7 ToF adapter FXA291 . . . . . . . . . . . . . . . . . . . . . . . 56
9 Troubleshooting . . . . . . . . . . . . . . . . . 57
9.1 Troubleshooting instructions . . . . . . . . . . . . . . . . . 57
9.2 System error messages . . . . . . . . . . . . . . . . . . . . . . 58
9.3 Application errors . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.4 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.7 Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.8 Contact addresses of Endress+Hauser . . . . . . . . . . . 63
10 Technical data . . . . . . . . . . . . . . . . . . . 64
10.1 Additional technical data . . . . . . . . . . . . . . . . . . . . 64
11 Appendix. . . . . . . . . . . . . . . . . . . . . . . 72
11.1 HART operating menu (display module) . . . . . . . . . 72
11.2 Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Safety instructions Levelflex M FMP41C 4 to 20 mA HART
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The Levelflex M is a compact level transmitter for the continuous measurement of the total level
and the interface level in liquids. Measuring principle: guided level radar / TDR:
Time Domain Reflectometry.
1.2 Installation, commissioning and operation
The Levelflex M is designed to meet state-of-the-art safety requirements and conforms to applicable
standards and EC regulations. 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 configuration. For this reason, installation, connection to the
electricity supply, commissioning, operation and maintenance of the measuring system must only
be carried out by trained, qualified specialists authorized to perform such work by the facility's
owner-operator. The specialist must have read and understood these Operating Instructions and
must follow the instructions they contain. Modifications and repairs to the device are permissible
only when they are expressly approved in the Operating Instructions.
1.3 Operational safety and process safety
Alternative monitoring measures must be taken to ensure operational safety and process safety
during configuration, testing and maintenance word on the device.
The measuring device meets the general safety requirements according to EN 61010-1 and the
EMC requirements of IEC/EN 61326 in addition to NAMUR Recommendations NE 21 and NE 43.
Hazardous areas
If using the measuring system in hazardous areas, the appropriate national standards must be
observed. The device is accompanied by separate Ex documentation, which is an integral part of this
documentation. The installation regulations, connection values and safety instructions listed in this
document must be observed.
• Ensure that all personnel are suitably qualified.
• Measuring point requirements with regard to measurement and safety must be observed.

Levelflex M FMP41C 4 to 20 mA HART Safety instructions
Endress+Hauser 5
1.4 Safety conventions and icons
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 instructions
#Warning!
A warning highlights actions or procedures which, if not performed correctly, will lead to personal
injury, a safety hazard or the destruction of the device.
"Caution!
Caution highlights actions or procedures which, if not performed correctly, may lead to personal
injury or incorrect functioning of the device.
!Note!
A note highlights actions or procedures which, if not performed correctly, can have an indirect effect
on operation or trigger an unexpected response on the part of the device.
Explosion protection
0Explosion-protected, type-examined equipment
If the device has this symbol embossed on its nameplate, it can be used in a hazardous area or a
non-hazardous area, according to the approval.
-Hazardous areas
This symbol is used in the drawings of these Operating Instructions to indicate hazardous areas.
Devices in hazardous areas, or cables for such devices, must have appropriate explosion protection.
. Safe area (non-hazardous area)
This symbol is used in the drawings of these Operating Instructions to indicate non-hazardous areas.
Devices in the non-hazardous area also have to be certified if connecting cables lead into the
hazardous area.
Electrical symbols
%Direct voltage
A terminal to which DC voltage is applied or through which direct current flows.
&Alternating voltage
A terminal to which alternating voltage (sine-wave) is applied or through which alternating current
flows.
)Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded by means of a grounding
system.
*Protective ground connection
A terminal which must be connected to ground prior to making any other connection to the
equipment.
+Equipotential connection
A connection that has to be connected to the plant grounding system:
This may be a potential equalization line or a star grounding system depending on national or
company codes of practice.
Temperature resistance of the connection cables
States that the connection cables must be resistant to a temperature of at least 85 °C.
Safety instruction
For safety instructions refer to the manual for the appropriate device version.
t >85°C

Identification Levelflex M FMP41C 4 to 20 mA HART
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
The following technical data are given on the device nameplate:
L00-FMP4xxxx-18-00-00-en-001
Information on the nameplate of the Levelflex M FMP41C
2.1.2 Ordering structure
This overview does not mark options which are mutually exclusive.
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
10 Approval:
A Non-hazardous area
F Non-hazardous area, WHG
1 ATEX II 1/2G Ex ia IIC T6
Note safety instruction (XA) (electrostatic charging)!
3 ATEX II 2G Ex em (ia) IIC T6
Note safety instruction (XA) (electrostatic charging)!
5 ATEX II 1/2G Ex ia IIC T6, ATEX II 1/3D
Note safety instruction (XA) (electrostatic charging)!
6 ATEX II 1/2G Ex ia IIC T6, WHG
Note safety instruction (XA) (electrostatic charging)!
7 ATEX II 1/2G Ex d (ia) IIC T6
Note safety instruction (XA) (electrostatic charging)!
8 ATEX II 1/2G Ex ia IIC T6, ATEX II 1/3D, WHG
Note safety instruction (XA) (electrostatic charging)!
G ATEX II 3G Ex nA II T6
C NEPSI Ex emb (ia) IIC T6
I NEPSI Ex ia IIC T6
J NEPSI Ex d (ia) IIC T6
Q NEPSI DIP (in preparation)
R NEPSI Ex nA II T6
S FM IS Cl.I,II,III Div.1 Gr.A-G N.I., zone 0, 1, 2
T FM XP Cl.I,II,III Div.1 Gr.A-G, zone 1, 2
N CSA General Purpose
U CSA IS Cl.I,II,III Div.1 Gr.A-D,G + coal dust, N.I., zone 0, 1, 2
V CSA XP Cl.I,II,III Div.1 Gr.A-D,G + coal dust, N.I., zone 1, 2
K TIIS Ex ia IIC T4 (in preparation)
L TIIS Ex d (ia) IIC T4
Y Special version, TSP-No. to be spec.

Levelflex M FMP41C 4 to 20 mA HART Identification
Endress+Hauser 7
20 Probe:
A ..... mm, rope PFA>316, 150mm, Center rod, nozzle height max 150mm
B ..... mm, rope PFA>316, 300mm, Center rod, nozzle height max 300mm
C ..... mm, rope PFA>316, 450mm, Center rod, nozzle height max 450mm
D ..... inch, rope PFA>316, 6inch, Center rod, nozzle height max 6inch
E ..... inch, rope PFA>316, 12inch, Center rod, nozzle height max 12inch
G ..... inch, rope PFA>316, 18inch, Center rod, nozzle height max 18inch
K ..... mm, rod PFA>316L
M ..... inch, rod PFA>316L
Y Special version, TSP-No. to be spec.
30 Process connection:
AEK 1-1/2" 150lbs, PTFE >316/316L flange ANSI B16.5
AFK 2" 150lbs, PTFE >316/316L flange ANSI B16.5
AGK 3" 150lbs, PTFE >316/316L flange ANSI B16.5
AHK 4" 150lbs, PTFE >316/316L flange ANSI B16.5
AJK 6" 150lbs, PTFE >316/316L flange ANSI B16.5
AQK 1-1/2" 300lbs, PTFE >316/316L flange ANSI B16.5
ARK 2" 300lbs, PTFE >316/316L flange ANSI B16.5
ASK 3" 300lbs, PTFE >316/316L flange ANSI B16.5
ATK 4" 300lbs, PTFE >316/316L flange ANSI B16.5
CEK DN40 PN16-40, PTFE >316L flange EN1092-1 (DIN2527 C)
CFK DN50 PN10-40, PTFE >316L flange EN1092-1 (DIN2527 C)
CGK DN80 PN10/16, PTFE >316L flange EN1092-1 (DIN2527 C)
CHK DN100 PN10/16, PTFE >316L flange EN1092-1 (DIN2527 C)
CJK DN150 PN10/16, PTFE >316L flange EN1092-1 (DIN2527 C)
CSK DN80 PN25/40, PTFE >316L flange EN1092-1 (DIN2527 C)
CTK DN100 PN25/40, PTFE >316L flange EN1092-1 (DIN2527 C)
KEK 10K 40A, PTFE >316L flange JIS B2220
KFK 10K 50A, PTFE >316L flange JIS B2220
KGK 10K 80A, PTFE >316L flange JIS B2220
KHK 10K 100A, PTFE >316L flange JIS B2220
MRK DIN11851 DN50 PN40 slotted-nut, PTFE >316L
TCK Tri-Clamp ISO2852 1-1/2", PTFE >316L
TDK Tri-Clamp ISO2852 2", PTFE >316L
TFK Tri-Clamp ISO2852 3", PTFE >316L
TJK Tri-Clamp ISO2852 1-1/2", PTFE >316L, 3A EHEDG
TLK Tri-Clamp ISO2852 2", PTFE >316L, 3A EHEDG
TNK Tri-Clamp ISO2852 3", PTFE >316L, 3A EHEDG
YY9 Special version, TSP-No. to be spec.
40 Power Supply; Output:
B 2-wire; 4-20mA SIL HART
D2-wire;PROFIBUSPA
F 2-wire; FOUNDATION Fieldbus
G 4-wire 90-250VAC; 4-20mA SIL HART
H 4-wire 10.5-32VDC; 4-20mA SIL HART
K 2-wire; 4-20mA HART, interface measurement
Y Special version, TSP-No. to be spec.
50 Operation:
1 W/o display, via communication
2 4-line display VU331, envelope curve display on site
3 Prepared for FHX40, remote display (accessory)
9 Special version, TSP-No. to be spec.
60 Type of probe:
1 Compact, basic version
3 Remote, cable 3m, top entry
4 Remote, cable 3m, side entry
9 Special version, TSP-No. to be spec.

Identification Levelflex M FMP41C 4 to 20 mA HART
8Endress+Hauser
1) OVP = overvoltage protection
70 Housing:
A F12 Alu, coated IP68 NEMA6P
B F23 316L IP68 NEMA6P
C T12 Alu, coated IP68 NEMA6P, separate conn. compartment
D T12 Alu, coated IP68 NEMA6P + OVP1), separate conn. compartment
Y Special version, TSP-No. to be spec.
80 Cable Entry:
2 Gland M20 (EEx d > thread M20)
3ThreadG1/2
4 Thread NPT1/2
5PlugM12
6 Plug 7/8"
9 Special version, TSP-No. to be spec.
90 Additional options:
A Basic version
C EN10204-3.1 material, pressurized, (316/316L pressurized) inspection
certificate
H 5-point, linearity protocol, see additional spec.
K 5-point, 3.1, pressurized, 5-point linearity protocol, see additional spec.,
EN10204-3.1material, perssurized (316/316L pressurized), inspection certificate
Y Special version, TSP-No. to be spec.
995 Marking:
1 Tagging (TAG), see additional spec.
2 Bus address, see additional spec.
FMP41C- Complete product designation

Levelflex M FMP41C 4 to 20 mA HART 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 devices given in the chapter "Incoming acceptance, transport, storage", →ä10!
The scope of delivery consists:
• Assembled device
• Accessories (→ä54)
• Endress+Hauser operating program on the enclosed CD-ROM
•
Brief operating instructions KA00283F/00/A2 (basic setup/troubleshooting), housed in the device
• Brief operating instructions KA01051F/00/EN for quick commissioning
• Approval documentation: if this is not included in the operating manual
• CD-ROM with further documentation, e.g.
– Technical Information
– Operating Instructions
– Description of Instrument Functions
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 E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP®
Registered trademark of Ladish & Co., Inc., Kenosha, USA
HART®
Registered trademark of the HART Communication Foundation, Austin, USA
PulseMaster®
Registered trademark of Endress+Hauser GmbH+Co. KG, Maulburg, Germany

Installation Levelflex M FMP41C 4 to 20 mA HART
10 Endress+Hauser
3 Installation
3.1 Incoming acceptance, transport, storage
3.1.1 Incoming acceptance
Check the packaging and the contents for damage. Check the shipment, make sure nothing is
missing and that the scope of supply matches your order.
3.1.2 Transport
"Caution!
Follow the safety instructions and transport conditions for devices of more than 18 kg. Do not lift
the device by the probe rod in order to transport it.
3.1.3 Storage
Pack the device 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 to +80 °C.

Levelflex M FMP41C 4 to 20 mA HART Installation
Endress+Hauser 11
3.2 Installation conditions
3.2.1 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 (2.56) 78 (3.07)
max. 110 (4.33)
mm (in)
85 (3.35)
150 (5.91)
ø129 (ø5.08)
(Aluminium)
F12 housing
ENDRESS+HAUSER
78 (3.07)
85 (3.35)
65 (2.56)
162 (6.38)
max. 100 (4.33) 94 (3.7)
mm (in)
ø129 (ø5.08)
(Aluminium)
T12 housing
max. 94 (3.7)
mm (in)
93 (3.66)
ø129 (ø5.08)
150 (5.91)
40 (1.57)
(316L)
F23 housing

Installation Levelflex M FMP41C 4 to 20 mA HART
12 Endress+Hauser
Process connection, type of probe
L00-FMP41xxx-06-00-00-en-001
88
88
123
2765
80
Ø 76
4 x Ø 8,5
118
24
Ø 42
Ø 60
100
Ø 76
Ø 81
165/315/465
260
Flange DN 40…200
or equivalent
reference point of
measurement
rope:
Ø 4 mm/0.20”
rope probe rod probe
Ø 16/0.63” (incl. insulation)
Ø 22/0.87” (incl. insulation)
probe length LN
F12 / T12 / F23 housing
1 ½"/2"/3"
Clamp
DN 50
dairy coupling
72
70.3 (1½")
70.5(2"/3")
70
Ø 21.3
Type of Probe
(see feature 60 in “Ordering structure”)
18 (1½")
22.6 (2"/3")
Option “3” :/“4”
remote electronic
top entry
Option “4”:
remote electronic
side entry

Levelflex M FMP41C 4 to 20 mA HART Installation
Endress+Hauser 13
3.3 General information on interface measurement
The Levelflex M with the "interface" electronics version is the ideal solution for measuring
interfaces. The device measures variable interfaces and variable total levels simultaneously.
L00-FMP4xIxx-15-00-00-en-001
In addition, the following general conditions must be observed for interface measurement:
• The DC of the upper medium must be known and constant. The DC can be determined with the
aid of the DC manual CP00019F/00/EN. In addition, it is also possible to calculate the DC
automatically in FieldCare if the interface thickness is available and known.
• The DC of the upper medium may not be greater than 10.
• The DC difference between the upper medium and lower medium must be >10.
• The interface must have a minimum thickness of 60 mm.
• Emulsion layers in the vicinity of the interface can severely dampen the signal. However,
emulsion layers up to 50 mm are permitted.
• The measuring range for interface measurement is limited to 10 m. Larger measuring range
available on request.
min. 60 mm
Dc2
Dc1
Dc2
Dc1
interface
overall
level

Installation Levelflex M FMP41C 4 to 20 mA HART
14 Endress+Hauser
3.3.1 Electronics
The process variables are output using the dynamic variables of the HART protocol. The process
variables can be flexibly assigned to the dynamic variables (primary, secondary, tertiary, quaternary
value).
3.3.2 Using the HART loop converter HMX50
The dynamic variables of the HART protocol can be converted into individual 4 to 20 mA sections
using the HART loop converter HMX50. The variables are assigned to the current output and the
measuring ranges to the individual parameters in the HMX50.
L00-FMP40xIx-04-00-00-en-004
Connection diagram for HART loop converter HMX50 (example: passive 2-wire device and current outputs connected as
power source)
The HART loop converter HMX50 can be acquired using the order number 71063562.
Additional documentation: TI00429F/00/EN and BA00371F/00/EN.
Dynamic variables of the
HART protocol
Possible process variable assignment Comment
Primary value (PV) • Interface (default)
•Totallevel
• Thickness of the upper medium (upper phase)
The "primary value" is permanently
assigned to the 4 to 20 mA current
output
Secondary value (SV) • Total level (default)
• Interface
• Thickness of the upper medium (upper phase)
—
Tertiary value (TV) • Thickness of the upper medium
(upper phase) (default)
• Interface
•Totallevel
• Amplitude of the total level signal
—
Quaternary (4th) value (QV) Amplitude of the interface level signal No variable assignment
Stromausgang 1
Relais 1
Stromausgang 2
Stromausgang 3
Relais 2
Relais 2
versorgung
Eingang
1
2
3
4
5
6
7
8
9
11
12
13
14
15
19
20
21
16
17
18
22 23 24
24V DC
10 HART Loop Converter HMX50
Levelflex M HART
Commubox
FXA195
+
-
+
Current output 1
Relay 1
Current output 2
Current output 3
Relay 2
Power
supply
Input
Power
HART

Levelflex M FMP41C 4 to 20 mA HART Installation
Endress+Hauser 15
3.4 Special information on interface measurement
3.4.1 Installation in horizontal cylindrical, upright and underground
tanks
• Use rod probes in the bypass/stilling well.
• Any distance from the wall is possible for rod probes in the stilling well. Contact with the wall
must be ruled out.
L00-FMP4xIxx-17-00-00-xx-002
3.4.2 Installation in stilling well or bypass
!Note!
Rope and rod probes can only be freely installed in the tank under certain circumstances - please
contact your Endress+Hauser office.
• A rod probe can be used for pipe diameters
bigger than 40 mm.
• Rod probe installation can take place up to a
diameter size of 100 mm.
• Welded joints that protrude up to approx. 5 mm
inwards do not affect the measurement.
• The pipe may not exhibit any steps in diameter.
• If a rod probe is used the probe length must be
100 mm longer than the lower disposal.
• In the case of rod probes, it must be ensured that
the probe does not come into contact with the
wall. If necessary, use a centering disk at the end
of the probe.
!Note!
A plastic centering disk has to be used for interface
measurement ("Accessories" ,→ä54).
L00-FMP4xIxx-17-00-00-xx-003
min. 100

Installation Levelflex M FMP41C 4 to 20 mA HART
16 Endress+Hauser
3.5 Installation instructions
3.5.1 Mounting kit
For the mounting, you will require the following tool:
• The tool for flange mounting
• 4 mm (0.1") Allen wrench for turning the housing
3.5.2 Minimum distance between the probe and the tank wall:
Any distance from the wall is allowed as long as the probe does not come into contact with the tank
wall.
!Note!
• When installing in plastic tanks, there should be no metal parts or movement of people outside
the tank at a distance of 300 mm from the probe.
• Fouling or high-viscosity media should not create bridges to the wall.
3.5.3 Type of probe installation
• When installing in plastic tanks, the nozzle must have at least DN50 (2"). The appropriate flange
must be used as the process connection.
• For nozzles up to 450 mm high, select the length of the centering rod appropriate for the nozzle
height when using rope probes.
• Use spring washers (1) (see Figure).
!Note!
It is recommended to retighten the securing screws at regular intervals, depending on the process
temperature and pressure. Recommended torque: 60 to 100 Nm.
• After mounting, the housing can be turned 350° to make it easier to access the display and the
connection compartment.
L00-FMP41Cxx-17-00-00-en-005
!Note!
The PTFE plating of the FMP41C is used for sealing to the process. Usually no other sealing is
necessary.
1
spring washers
450 mm / 18 “
≤

Levelflex M FMP41C 4 to 20 mA HART Installation
Endress+Hauser 17
3.5.4 Replacing a displacement system in an existing displacer
chamber
The Levelflex M is a perfect replacement for a conventional displacer system in an existing displacer
chamber. In addition to the DIN and ANSI flanges, which are available as standard,
Endress+Hauser also offers flanges that suit Fischer and Masoneilan displacer chamber (special
product) for this purpose. Thanks to menu-guided local operation, commissioning the Levelflex M
only takes a few minutes. Replacement is also possible when partially filled, and wet calibration is
not required.
Your benefits:
• No moving parts, thus zero-maintenance operation.
• Not sensitive to process influences such as temperature, density, turbulence and vibrations.
L00-FMP4xIxx-17-00-00-en-002
Planning instructions:
• In normal cases, use a rod probe. When installing into a metal displacement housing up to
150 mm (100 mm for interface), you have all the advantages of a coax probe.
• It must be ensured that the probe does not come into contact with the side wall.
Additional information on interface measurement:
• The pipe may not exhibit any steps in diameter.
• In the case of rod probes, it must be ensured that the probe does not come into contact with the
wall. If necessary, use a centering disk at the end of the probe.
!Note!
A plastic centering disk has to be used for interface measurement ("Accessories" ,→ä54).
displacer chamber flange

Installation Levelflex M FMP41C 4 to 20 mA HART
18 Endress+Hauser
3.5.5 Notes on special mounting situations
3.5.6 Installing with heat insulation
• If process temperatures are high, FMP41C must be included in normal tank insulation to prevent
the electronics heating up as a result of thermal radiation or convection.
• The insulation may not go beyond the points labeled "MAX" in the drawing.
L00-FMP41Cxx-17-00-00-en-006
Process connection with flange DN40 to DN100
Installation at an angle
• For mechanical reasons, rod probes should be
installed as vertically as possible.
• With inclined installations the probe length
has to be adjusted in dependence to the
installation angle.
– Up to 1 m = 30°
– Up to 2 m = 10°
– Up to 4 m = 5°
L00-FMP4xIxx-17-00-00-en-048
rope probe
mounting angle
MAX
40
max. 200° C (392° F)
tank insulation

Levelflex M FMP41C 4 to 20 mA HART Installation
Endress+Hauser 19
3.5.7 Installation with hard-to-reach process connections
Installation with remote electronics
• Wall and pipe bracket is contained in the scope of delivery and already mounted.
• When installing, please observe the instructions, →ä17.
• Mount housing on a wall or pipe (vertically or horizontally) as shown in the diagram.
L00-FMP4xxxx-17-00-00-en-015
!Note!
The protective hose cannot be disassembled at these points (1).
The ambient temperature for the connecting pipe (2) between the probe and the electronics must
not exceed 105°C. The version with remote electronics consists of the probe, a connecting cable
and the housing. If they are ordered as a complete unit they are assembled when delivered.
150
ENDRESS+HAUSER
Levelflex M
65 78
ø129
85
150
ENDRESS+HAUSER
Levelflex M
65 78
ø129
85
52
52
150
max. 80
min. 30
96
94
94
88
88
123
2765
80
260
75
≥
ø76
1
1
4xø8,5
1
1
2
pipe
wall
Note min.
bend radius!
ø21.3

Installation Levelflex M FMP41C 4 to 20 mA HART
20 Endress+Hauser
3.5.8 Turning the housing
After mounting, you can turn the housing 350° in order make it easier to access the display and the
connection compartment. Proceed as follows to turn the housing to the required position:
• Undo the fixing screw (1)
• Turn the housing (2) in the required direction
• Tighten the fixing screw (1)
L00-FMP41Cxx-17-00-00-en-002
3.6 Post-installation check
After the measuring device has been installed, perform the following checks:
• Is the measuring device damaged (visual inspection)?
• Does the device correspond to specifications at the measuring point, including process
temperature and pressure, ambient temperature, measuring range, etc.?
• Are the measuring point number and labeling correct (visual inspection)?
• Is the measuring device adequately protected against rain and direct sunlight (→ä54)?
90°90°
90°90°
90°90°
1
1
22
F12/F23 housing T12 housing
allen key
4 mm/0.1”