Endress+Hauser Micropilot FMR51 User manual

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Operating Instructions
Micropilot FMR51, FMR52
FOUNDATION Fieldbus
Level radar
Level measurement in liquids
BA01121F/00/EN/01.13
71219971
Valid as of version
01.01.zz

Important document information Micropilot FMR51, FMR52 FOUNDATION Fieldbus
2 Endress+Hauser
1 Important document information
1.1 Document function
These Operating Instructions contain all the information that is required in various phases
of the life cycle of the device: from product identification, incoming acceptance and
storage, to mounting, connection, operation and commissioning through to
troubleshooting, maintenance and disposal.
1.2 Document conventions
1.2.1 Safety symbols
Symbol Meaning
DANGER
A0011189-EN
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
A0011190-EN
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
A0011191-EN
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
A0011192-EN
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Electrical symbols
Symbol Meaning
A0011197
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011198
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
A0017381
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
A0011200
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
A0011199
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
A0011201
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.

Micropilot FMR51, FMR52 FOUNDATION Fieldbus Important document information
Endress+Hauser 3
1.2.3 Tool symbols
Symbol Meaning
A0013442
Torx screwdriver
A0011220
Flat blade screwdriver
A0011219
Cross-head screwdriver
A0011221
Allen key
A0011222
Hexagon wrench
1.2.4 Symbols for certain types of information
Symbol Meaning
A0011182
Allowed
Indicates procedures, processes or actions that are allowed.
A0011183
Preferred
Indicates procedures, processes or actions that are preferred.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
A0011194
Reference to documentation
Refers to the corresponding device documentation.
A0011195
Reference to page
Refers to the corresponding page number.
A0011196
Reference to graphic
Refers to the corresponding graphic number and page number.
,… ,
Series of steps
Result of a sequence of actions
A0013562
Help in the event of a problem
1.2.5 Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
,… ,
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections

Important document information Micropilot FMR51, FMR52 FOUNDATION Fieldbus
4 Endress+Hauser
Symbol Meaning
-
A0011187
Hazardous area
Indicates a hazardous area.
.
A0011188
Safe area (non-hazardous area)
Indicates a non-hazardous location.
1.2.6 Symbols at the device
Symbol Meaning
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
Temperature resistance of the connection cables
Specifies the minimum value of the temperature resistance of the connection cables.
1.3 Additional documentation
Document Purpose and content of the document
Technical Information
TI01040F (FMR51, FMR52)
Planning aid for your device
The document contains all the technical data on the device and provides
an overview of the accessories and other products that can be ordered for
the device.
Brief Operating Instructions
KA01125F (FMR51/FMR52,
FOUNDATION Fieldbus)
Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information
from incoming acceptance to initial commissioning.
Description of Device Parameters
GP01017F (FMR5x, FOUNDATION
Fieldbus)
Reference for your parameters
The document provides a detailed explanation of each individual
parameter in the operating menu. The description is aimed at those who
work with the device over the entire life cycle and perform specific
configurations.
The document types listed are available:
• On the CD supplied with the device
• In the Download Area of the Endress+Hauser Internet site: www.endress.com 
Download
1.3.1 Safety Instructions (XA)
Depending on the approval, the following Safety Instructions (XA) are supplied with the
device. They are an integral part of the Operating Instructions.
Feature 010 Approval Available for Safety Instructions HART Safety Instructions
PROFIBUS
FOUNDATION Fieldbus
BA ATEX: II 1 G Ex ia IIC T6 Ga • FMR51
• FMR52 XA00677F XA00685F
BB ATEX: II 1/2 G Ex ia IIC T6-T1 Ga/Gb • FMR51
• FMR52 XA00677F XA00685F
BC ATEX: II 1/2 G Ex d [ia] IIC T6-T1 Ga/Gb • FMR51
• FMR52
XA00680F XA00688F
BD ATEX: II 1/2/3 G Ex ic [ia Ga] IIC T6-T1 Ga/Gb/Gc • FMR51
• FMR52
XA00678F XA00686F
BG ATEX: II 3 G Ex nA IIC T6-T1 Gc • FMR51
• FMR52 XA00679F XA00687F

Micropilot FMR51, FMR52 FOUNDATION Fieldbus Important document information
Endress+Hauser 5
Feature 010 Approval Available for Safety Instructions HART Safety Instructions
PROFIBUS
FOUNDATION Fieldbus
BH ATEX: II 3 G Ex ic IIC T6-T1 Gc • FMR51
• FMR52 XA00679F XA00687F
BL ATEX: II 1/2/3 G Ex nA [ia Ga] IIC T6-T1 Ga/Gb/Gc • FMR51
• FMR52
XA00678F XA00686F
B2 ATEX: II 1/2 G Ex ia IIC T6-T1 Ga/Gb
ATEX: II 1/2 D Ex ia IIIC Txx°C Da/Db
• FMR51
• FMR52
XA00683F XA00691F
B3 ATEX: II 1/2 G Ex d [ia] IIC T6-T1 Ga/Gb
ATEX: II 1/2 D Ex ta IIIC Txx°C Da/Db
• FMR51
• FMR52
XA00684F XA00692F
B4 ATEX:II 1/2 G Ex ia IIC T6-T1 Ga/Gb
ATEX: II 1/2 G Ex d [ia] IIC T6-T1 Ga/Gb
• FMR51
• FMR52
XA00681F XA00689F
IA IECEx: Ex ia IIC T6-T1 Ga • FMR51
• FMR52 XA00677F XA00685F
IB IECEx: Ex ia IIC T6-T1 Ga/Gb • FMR51
• FMR52 XA00677F XA00685F
IC IECEx: Ex d [ia] IIC T6-T1 Ga/Gb • FMR51
• FMR52
XA00680F XA00688F
ID IECEx: Ex ic [ia Ga] IIC T6-T1 Ga/Gb/Gc • FMR51
• FMR52
XA00678F XA00686F
IG IECEx: Ex nA IIC T6-T1 Gc • FMR51
• FMR52 XA00679F XA00687F
IH IECEx: Ex ic IIC T6-T1 Gc • FMR51
• FMR52 XA00679F XA00687F
IL IECEx: Ex nA [ia Ga] IIC T6-T1 Ga/Gb/Gc • FMR51
• FMR52
XA00678F XA00686F
I2 IECEx: Ex ia IIC T6-T1 Ga/Gb
IECEx: Ex ia IIIC Txx°C Da/Db
• FMR51
• FMR52
XA00683F XA00691F
I3 IECEx: Ex d [ia] IIC T6-T1 Ga/Gb
IEXEx: Ex ta IIIC Txx°C Da/Db
• FMR51
• FMR52
XA00684F XA00692F
I4 IECEx: Ex ia IIC T6-T1 Ga/Gb
IECEx: Ex d [ia] IIC T6-T1 Ga/Gb
• FMR51
• FMR52
XA00681F XA00689F
For certified devices the relevant Safety Instructions (XA) are indicated on the
nameplate.
If the device is prepared for the remote display FHX50 (product structure: feature 030:
Display, Operation", option L or M), the Ex marking of some certificates changes according
to the following table 1):
Feature 010 ("Approval") Feature 030 ("Display, Operation") Ex marking
BE L oder M ATEX II 1D Ex ta [ia] IIIC T500 xx°C Da
BF L oder M ATEX II 1/2 D Ex ta [ia Db] IIIC Txx°C Da/Db
BG L oder M ATEX II 3G Ex nA [ia Ga] IIC T6 Gc
BH L oder M ATEX II 3G Ex ic [ia Ga] IIC T6 Gc
B3 L oder M ATEX II 1/2G Ex d [ia] IIC T6 Ga/Gb,
ATEX II 1/2D Ex ta [ia Db] IIIC Txx°C Da/Db
IE L oder M IECEx Ex ta [ia] IIIC T500 xx°C Da
IF L oder M IECEx ta [ia Db] IIIC Txx°C Da/Db
IG L oder M IECEx Ex nA [ia Ga] IIC T6 Gc
1) The marking of certificates not mentioned in this table are not affected by the FHX50.

Important document information Micropilot FMR51, FMR52 FOUNDATION Fieldbus
6 Endress+Hauser
Feature 010 ("Approval") Feature 030 ("Display, Operation") Ex marking
IH L oder M IECEx Ex ic [ia Ga] IIC T6 Gc
I3 L oder M IECEx Ex d [ia] IIC T6 Ga/Gb,
IECEx Ex ta [ia Db] IIIC Txx°C Da/Db

Micropilot FMR51, FMR52 FOUNDATION Fieldbus Basic safety instructions
Endress+Hauser 7
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Before beginning work, the specialist staff must have read and understood the
instructions in the Operating Instructions and supplementary documentation as well as
in the certificates (depending on the application)
‣Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
‣Being instructed and authorized according to the requirements of the task by the
facility's owner-operator
‣Following the instructions in these Operating Instructions
2.2 Designated use
Application and measured materials
The measuring device described in these Operating Instructions is intended for the
continuous, contactless level 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, a maximum radiated pulsed power of 5.7 mW and an average power output
of 0.015 mW (for the version with advanced dynamics: maximum pulse power: 23.3 mW;
average power: 0.076 mW). Operation is completely harmless to humans and animals.
Observing the limit values specified in the "Technical data" and listed in the Operating
Instructions and supplementary documentation, the measuring device may be used for the
following measurements only:
‣Measured process variables: level, distance, signal strength
‣Calculated process variables: Volume or mass in arbitrarily shaped vessels; flow
through measuring weirs or flumes (calculated from the level by the linearization
functionality)
To ensure that the measuring device remains in proper condition for the operation time:
‣Use the measuring device only for measured materials against which the process-
wetted materials are adequately resistant.
‣Observe the limit values in "Technical data".
Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Verification for borderline cases:
‣For special measured materials and cleaning agents, Endress+Hauser is glad to provide
assistance in verifying the corrosion resistance of wetted materials, but does not accept
any warranty or liability.
Residual risk
The electronics housing and its built-in components such as display module, main
electronics module and I/O electronics module may heat to 80 °C (176 °F) during operation
through heat transfer from the process as well as power dissipation within the electronics.
During operation the sensor may assume a temperature near the temperature of the
measured material.

Basic safety instructions Micropilot FMR51, FMR52 FOUNDATION Fieldbus
8 Endress+Hauser
Danger of burns due to heated surfaces!
‣For high process temperatures: Install protection against contact in order to prevent
burns.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
2.4 Operational safety
Risk of injury.
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with the manufacturer.
Repair
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from the manufacturer only.
Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the
hazardous area (e.g. explosion protection, pressure vessel safety):
‣Based on the nameplate, check whether the ordered device is permitted for the
intended use in the hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which they are safe to operate.
It meets general safety standards and legal requirements. It also complies with the EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.

Micropilot FMR51, FMR52 FOUNDATION Fieldbus Product description
Endress+Hauser 9
3 Product description
3.1 Product design
3.1.1 Micropilot FMR51
11
2
3 3 3
54
1
A0016818
 1 Design of the Micropilot FMR51 (26 GHz)
1 Electronics housing
2 Process connection (Thread)
3 Horn antenna
4 Flange
5 Antenna extension
3.1.2 Micropilot FMR52
1 1 1
2 3 5
4
4
4
A0016788
 2 Design of the Micropilot FMR52 (26 GHz)
1 Electronics housing
2 Tri-Clamp process connection
3 Dairy coupling
4 PTFE cladding
5 Flange

Product description Micropilot FMR51, FMR52 FOUNDATION Fieldbus
10 Endress+Hauser
3.1.3 Electronics housing
Esc
–+E
123
4
5
6
9
7
8
A0012422
 3 Design of the electronics housing
1 Electronics compartment cover
2 Display module
3 Main electronics module
4 Cable glands (1 or 2, depending on instrument version)
5 Nameplate
6 I/O electronics module
7 Terminals (pluggable spring terminals)
8 Connection compartment cover
9 Grounding terminal
3.2 Registered trademarks
FOUNDATIONTM Fieldbus
Registered trademark of the Fieldbus Foundation, Austin, Texas, USA
KALREZ®, VITON®
Registered trademark of DuPont Performance Elastomers L.L.C., Wilmington, USA
TEFLON®
Registered trademark of E.I. DuPont de Nemours & Co., Wilmington, USA
TRI CLAMP®
Registered trademark of Alfa Laval Inc., Kenosha, USA