Endress+Hauser Micropilot FMR66B User manual

Products Solutions Services
Operating Instructions
Micropilot FMR66B
PROFIBUS PA
Free space radar
BA02264F/00/EN/01.23-00
71627299
2023-09-01
01.00.zz (Device firmware)

Micropilot FMR66B PROFIBUS PA
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555
• Make sure the document is stored in a safe place such that it is always available when
working on or with the device
• Avoid danger to individuals or the facility: read the "Basic safety instructions" section
carefully, as well as all other safety instructions in the document that are specific to
working procedures
The manufacturer reserves the right to modify technical data without prior notice. The
Endress+Hauser sales organization will supply you with current information and updates
to these instructions.

Micropilot FMR66B PROFIBUS PA Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 5
1.1 Purpose of this document ................. 5
1.2 Symbols .............................. 5
1.2.1 Safety symbols .................. 5
1.2.2 Symbols for certain types of
information and graphics ........... 5
1.3 Documentation ........................ 6
1.3.1 Technical Information (TI) ......... 6
1.3.2 Brief Operating Instructions (KA) ..... 6
1.3.3 Safety Instructions (XA) ............ 6
1.4 Terms and abbreviations ................. 7
1.5 Registered trademarks ................... 7
2 Basic safety instructions ............ 8
2.1 Requirements for personnel ............... 8
2.2 Intended use .......................... 8
2.3 Workplace safety ....................... 9
2.4 Operational safety ...................... 9
2.5 Product safety ......................... 9
2.6 IT security ............................ 9
2.7 Device-specific IT security ................ 9
3 Product description ................ 11
3.1 Product design ........................ 11
4 Incoming acceptance and product
identification ..................... 12
4.1 Incoming acceptance ................... 12
4.2 Product identification ................... 12
4.2.1 Nameplate .................... 12
4.2.2 Manufacturer address ............ 13
4.3 Storage and transport .................. 13
4.3.1 Storage conditions ............... 13
4.3.2 Transporting the product to the
measuring point ................ 13
5 Mounting ......................... 14
5.1 General instructions .................... 14
5.2 Mounting requirements ................. 14
5.2.1 Internal vessel fittings ............ 14
5.2.2 Avoiding interference echoes ....... 15
5.2.3 Vertical alignment of antenna axis ... 15
5.2.4 Radial alignment of the antenna .... 15
5.2.5 Optimization options ............. 15
5.3 Mounting the device ................... 15
5.3.1 Encapsulated antenna, PVDF
40 mm (1.5 in) ................. 15
5.3.2 Drip-off antenna PTFE
50 mm (2 in) .................. 16
5.3.3 Turning the housing ............. 17
5.3.4 Turning the display module ........ 17
5.3.5 Changing the installation position of
the display module .............. 18
5.3.6 Closing the housing covers ......... 19
5.4 Post-mounting check ................... 19
6 Electrical connection .............. 21
6.1 Connecting requirements ............... 21
6.1.1 Cover with securing screw ......... 21
6.1.2 Potential equalization ............ 21
6.2 Connecting the device .................. 22
6.2.1 Supply voltage ................. 22
6.2.2 Cable specification ............... 23
6.2.3 Overvoltage protection ........... 23
6.2.4 Wiring ....................... 24
6.2.5 Terminal assignment ............ 25
6.2.6 Cable entries ................... 26
6.2.7 Available connectors ............ 26
6.3 Ensuring the degree of protection ......... 27
6.3.1 Cable entries ................... 27
6.4 Post-connection check .................. 27
7 Operation options ................. 28
7.1 Overview of operation options ............ 28
7.2 Operating keys and DIP switches on the
PROFIBUS PA electronic insert ............ 28
7.2.1 Hardware addressing ............. 28
7.2.2 Software addressing ............. 29
7.3 Structure and function of the operating
menu .............................. 29
7.3.1 User roles and related access
authorization .................. 29
7.4 Access to operating menu via local display ... 29
7.4.1 Device display (optional) .......... 29
7.4.2 Operation via Bluetooth® wireless
technology (optional) ............ 30
7.5 Access to the operating menu via the
operating tool ........................ 31
7.6 DeviceCare .......................... 31
7.6.1 Function scope ................. 31
7.7 FieldCare ............................ 31
7.7.1 Function range ................. 31
8 System integration ................ 33
8.1 Protocol-specific data .................. 33
8.1.1 PROFIBUS PA .................. 33
8.2 Device master file (GSD) ................. 34
8.2.1 Manufacturer-specific GSD ........ 34
8.2.2 Profile GSD .................... 34
8.2.3 Compatibility with other devices .... 35
8.3 Cyclic data transmission ................. 35
8.3.1 Block model ................... 35
8.3.2 Description of the modules ........ 36

Table of contents Micropilot FMR66B PROFIBUS PA
4 Endress+Hauser
9 Commissioning .................... 39
9.1 Preliminaries ........................ 39
9.2 Function check ....................... 39
9.3 Connecting via FieldCare and DeviceCare .... 39
9.3.1 Via PROFIBUS PA protocol ......... 39
9.3.2 Via service interface (CDI) ......... 40
9.4 Setting the operating language ........... 40
9.4.1 Local display ................... 40
9.4.2 Operating tool .................. 40
9.5 Configuring the device ................. 41
9.5.1 Level measurement in bulk solids .... 41
9.5.2 Commissioning with the
Commissioning wizard ........... 41
9.6 Recording the Echo curve ................ 41
9.7 "Simulation" submenu ................... 42
10 Operation ......................... 43
10.1 Reading off the device locking status ....... 43
10.2 Reading off measured values ............. 43
10.3 Adapting the device to process conditions .... 43
10.4 Heartbeat Technology (optional) .......... 43
10.4.1 Heartbeat Verification ............ 43
10.4.2 Heartbeat Verification/Monitoring .. 43
11 Diagnostics and troubleshooting ... 44
11.1 General troubleshooting ................. 44
11.1.1 General errors .................. 44
11.2 Error - SmartBlue operation .............. 44
11.3 Diagnostic message .................... 45
11.3.1 Diagnostic information on local
display ....................... 46
11.3.2 Diagnostic information in the
operating tool .................. 46
11.3.3 Status signal ................... 46
11.3.4 Diagnostic event and event text ..... 47
11.4 Remedy informationCalling up ........... 47
11.4.1 Graphic display with keys ......... 47
11.4.2 Operating menu ................ 48
11.5 Adapting the diagnostic information ....... 48
11.6 List of diagnostic events ................. 48
11.7 Event logbook ........................ 50
11.7.1 Event history ................... 50
11.7.2 Filtering the event logbook ........ 51
11.7.3 Overview of information events ..... 51
11.8 Resetting the device .................... 52
11.8.1 Reset password via operating tool ... 52
11.8.2 Reset device via operating tool ..... 52
11.8.3 Resetting the device via keys on the
electronic insert ................ 52
11.9 Device information .................... 53
11.10 Firmware history ...................... 53
12 Maintenance ...................... 54
12.1 Exterior cleaning ...................... 54
12.2 Seals ............................... 54
13 Repair ............................ 55
13.1 General information ................... 55
13.1.1 Repair concept ................. 55
13.1.2 Repairs to Ex-approved devices ..... 55
13.2 Spare parts .......................... 55
13.3 Replacement ......................... 55
13.3.1 HistoROM ..................... 55
13.4 Return .............................. 56
13.5 Disposal ............................ 56
14 Accessories ....................... 57
14.1 Weather protection cover 316L ........... 57
14.2 Plastic weather protection cover ........... 57
14.3 Adjustable flange seal .................. 58
14.3.1 Seal, adjustable, DN80 ............ 58
14.3.2 Seal, adjustable, DN100 ........... 58
14.3.3 Seal, adjustable, DN150 ........... 59
14.3.4 Seal, adjustable, ASME 3"/ JIS 80A ... 59
14.3.5 Seal, adjustable, ASME 4" .......... 60
14.3.6 Seal, adjustable, ASME 6"/ JIS 150A .. 60
14.4 Mounting bracket, adjustable ............. 61
14.4.1 Dimensions .................... 62
14.4.2 Scope of delivery ................ 62
14.5 Remote display FHX50B ................. 62
14.6 Gas-tight feedthrough .................. 64
14.7 Field Xpert SMT70 ..................... 64
14.8 DeviceCare SFE100 .................... 64
14.9 FieldCare SFE500 ..................... 64
14.10 RID14 .............................. 64
14.11 RID16 .............................. 65
14.12 Fieldgate SFG500 ..................... 65
15 Technical data .................... 67
15.1 Input ............................... 67
15.2 Output ............................. 68
15.3 Environment ......................... 70
15.4 Process ............................. 75
Index .................................. 77

Micropilot FMR66B PROFIBUS PA About this document
Endress+Hauser 5
1 About this document
1.1 Purpose of this document
These Operating Instructions contain all the information that is required in the 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 Symbols
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information
Reference to documentation
A
Reference to page
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
Series of steps
Result of a step
1, 2, 3, ...
Item numbers
A, B, C, ...
Views

About this document Micropilot FMR66B PROFIBUS PA
6 Endress+Hauser
1.3 Documentation
The following document types are available in the Downloads section of the Endress
+Hauser website (www.endress.com/downloads):
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the
nameplate
•Endress+Hauser Operations app: Enter serial number from nameplate or scan
matrix code on nameplate.
1.3.1 Technical Information (TI)
Planning aid
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.
1.3.2 Brief Operating Instructions (KA)
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.
1.3.3 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.
The nameplate indicates the Safety Instructions (XA) that are relevant to the device.

Micropilot FMR66B PROFIBUS PA About this document
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1.4 Terms and abbreviations
MWP
Maximum working pressure
The MWP is indicated on the nameplate.
εr (Dk value)
Relative dielectric constant
Operating tool
The term "operating tool" is used in place of the following operating software:
SmartBlue (app), for operation using an Android or iOS smartphone or tablet
PLC
Programmable logic controller (PLC)
CDI
Common Data Interface
1.5 Registered trademarks
PROFIBUS®
PROFIBUS and the associated trademarks (The Association Trademark, the Technology
Trademarks, the Certification Trademark and the Certified by PI Trademark) are registered
trademarks of the PROFIBUS User Organization e.V. (Profibus User Organization),
Karlsruhe - Germany
Bluetooth®
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth
SIG, Inc. and any use of such marks by Endress+Hauser is under license. Other trademarks
and trade names are those of their respective owners.
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in
the U.S. and other countries. App Store is a service mark of Apple Inc.
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
KALREZ®, VITON®
Registered trademarks of DuPont Performance Elastomers L.L.C., Wilmington, DE USA

Basic safety instructions Micropilot FMR66B PROFIBUS PA
8 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for 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.
‣Personnel must be authorized by the plant owner/operator.
‣Be familiar with federal/national regulations.
‣Before starting work: personnel must read and understand the instructions in the
manual and supplementary documentation as well as the certificates (depending on
the application).
‣Personnel must follow instructions and comply with general policies.
The operating personnel must fulfill the following requirements:
‣Personnel are instructed and authorized according to the requirements of the task by
the facility's owner-operator.
‣Personnel follow the instructions in this manual.
2.2 Intended use
Application and media
The measuring device described in these Operating Instructions is intended for continuous,
non-contact level measurement primarily in bulk solids. Due to its operating frequency of
approx. 80 GHz, a maximum radiated peak power of <1.5 mW and an average power
output of <70 µW, unrestricted use outside of closed, metallic vessels is also permitted (for
example over heaps). Operation does not pose any danger whatsoever to humans and
animals.
If the limit values specified in the "Technical data" and the conditions listed in the
instructions and additional documentation are observed, the measuring device may be
used only for the following measurements:
‣Measured process variables: level, distance, signal strength
‣Calculable process variables: volume or mass in any shape of vessel
To ensure that the measuring device remains in proper condition for the operation time:
‣Use the measuring device only for media to which the process-wetted materials are
sufficiently resistant.
‣Observe the limit values in the "Technical data".
Incorrect use
The manufacturer is not liable for damage caused by improper or non-intended use.
Avoid mechanical damage:
‣Do not touch or clean device surfaces with pointed or hard objects.
Clarification of borderline cases:
‣For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance
in verifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability.
Residual risks
Due to heat transfer from the process as well as power loss in the electronics, the
temperature of the electronics housing and the assemblies it contains (e.g. display module,
main electronics module and I/O electronics module) may rise to 80 °C (176 °F). When in
operation, the sensor may reach a temperature close to the medium temperature.
Danger of burns from contact with surfaces!
‣For elevated fluid temperatures, ensure protection against contact to prevent burns.

Micropilot FMR66B PROFIBUS PA Basic safety instructions
Endress+Hauser 9
2.3 Workplace safety
When working on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
‣Switch off the supply voltage before connecting the device.
2.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for the interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless 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 the repair of an electrical device.
‣Use only original spare parts and accessories from the manufacturer.
Hazardous area
To eliminate danger to persons or the installation when the device is used in the
hazardous area (e.g. explosion protection, pressure vessel safety):
‣Check the nameplate to verify whether the ordered device can be put to its intended
use in the hazardous area.
‣Observe the specifications in the separate supplementary documentation, which is an
integral part of this manual.
2.5 Product safety
This 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 it is
safe to operate.
It meets the general safety standards and legal requirements. It also complies with the EU
directives listed in the device-specific EU Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.
2.6 IT security
We only provide a warranty if the device is installed and used as described in the
Operating Instructions. The device is equipped with security mechanisms to protect it
against any inadvertent changes to the device settings. IT security measures in line with
operators' security standards and designed to provide additional protection for the device
and device data transfer must be implemented by the operators themselves.
2.7 Device-specific IT security
The device offers specific functions to support protective measures by the operator. These
functions can be configured by the user and guarantee greater in-operation safety if used
correctly. An overview of the most important functions is provided in the following section:

Basic safety instructions Micropilot FMR66B PROFIBUS PA
10 Endress+Hauser
• Write protection via hardware write protection switch
• Access code (applies for operation via display, Bluetooth or FieldCare, DeviceCare, PDM)

Micropilot FMR66B PROFIBUS PA Product description
Endress+Hauser 11
3 Product description
3.1 Product design
1
3
4
2
4
A0046664
 1 Design of the Micropilot FMR66B
1 Electronics housing
2 Encapsulated antenna, PVDF, 40 mm (1.5 in), threaded process connection
3 Encapsulated antenna, PVDF, 40 mm (1.5 in), flange process connection
4 Drip-off antenna 50 mm (2 in), threaded process connection
5 Drip-off antenna 50 mm (2 in), flange process connection

Incoming acceptance and product identification Micropilot FMR66B PROFIBUS PA
12 Endress+Hauser
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
DELIVERY NOTE
1 = 2
A0016870
Check the following during incoming acceptance:
• Is the order code on the delivery note (1) identical to the order code on the product
sticker (2)?
• Are the goods undamaged?
• Do the data on the nameplate correspond to the order specifications and the delivery
note?
• Is the documentation provided?
• If required (see nameplate): are the Safety Instructions (XA) provided?
If one of these conditions is not met, please contact the manufacturer's sales office.
4.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
‣Device Viewer(www.endress.com/deviceviewer); manually enter the serial number
from the nameplate.
 All the information about the measuring device is displayed.
‣Endress+Hauser Operations app; manually enter the serial number indicated on the
nameplate or scan the 2D matrix code on the nameplate.
 All the information about the measuring device is displayed.
4.2.1 Nameplate
The information that is required by law and is relevant to the device is shown on the
nameplate, e.g.:
• Manufacturer identification
• Order number, extended order code, serial number
• Technical data, degree of protection
• Firmware version, hardware version
• Approval-related information, reference to Safety Instructions (XA)
• DataMatrix code (information about the device)

Micropilot FMR66B PROFIBUS PA Incoming acceptance and product identification
Endress+Hauser 13
4.2.2 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Place of manufacture: See nameplate.
4.3 Storage and transport
4.3.1 Storage conditions
• Use the original packaging
• Store the device in clean and dry conditions and protect from damage caused by shocks
Storage temperature range
See Technical Information.
4.3.2 Transporting the product to the measuring point
LWARNING
Incorrect transport!
The housing or sensor can be damaged or pull off. Risk of injury!
‣Transport the device to the measuring point in its original packaging or by the process
connection.
‣Always secure lifting equipment (slings, eyes, etc.) at the process connection and never
lift the device by the electronic housing or sensor. Pay attention to the center of gravity
of the device so that it does not tilt or slip unintentionally.

Mounting Micropilot FMR66B PROFIBUS PA
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5 Mounting
5.1 General instructions
LWARNING
Loss of protection rating if the device is opened in a wet environment.
‣Only open the device in a dry environment!
1. Install the device or turn the housing so that the cable entries do not point upwards.

A0029263
2. Always firmly tighten the housing cover and the cable entries.
3. Counter-tighten the cable entries.
4. A drip loop must be provided when laying the cables.
5.2 Mounting requirements
5.2.1 Internal vessel fittings
α
A0031814
Avoid internal fittings (point level switches, temperature sensors, struts, vacuum rings,
heating coils, baffles etc.) inside the signal beam. Pay attention to the beam angle α.

Micropilot FMR66B PROFIBUS PA Mounting
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5.2.2 Avoiding interference echoes
A0031817
Metal deflector plates, installed at an angle to scatter the radar signals, help prevent
interference echoes.
5.2.3 Vertical alignment of antenna axis
Align the antenna so that it is perpendicular to the product surface.
The maximum reach of the antenna can be reduced, or additional interference signals
can occur, if the antenna is not installed perpendicular to the product.
5.2.4 Radial alignment of the antenna
Based on the directional characteristic, radial alignment of the antenna is not necessary.
5.2.5 Optimization options
Mapping
Measurement can be optimized by electronically suppressing interference echoes.
See the Confirm distance parameter.
5.3 Mounting the device
5.3.1 Encapsulated antenna, PVDF 40 mm (1.5 in)
Information concerning threaded connections
• When screwing in, turn by the hex bolt only.
• Tool: open-ended wrench 50 mm
• Maximum permissible torque: 30 Nm (22 lbf ft)

Mounting Micropilot FMR66B PROFIBUS PA
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Information about the mounting nozzle
The maximum nozzle length Hmax depends on the nozzle diameter D.
Maximum nozzle length Hmax as a function of the nozzle diameter D
D Hmax
øD
Hmax
50 to 80 mm (2 to 3.2 in) 600 mm (24 in)
80 to 100 mm (3.2 to 4 in) 1 000 mm (24 in)
100 to 150 mm (4 to 6 in) 1 250 mm (50 in)
≥ 150 mm (6 in) 1 850 mm (74 in)
In the case of longer nozzles, reduced measuring performance must be expected.
Please note the following:
• The end of the nozzle must be smooth and free from burrs.
• The edge of the nozzle should be rounded.
• Mapping must be performed.
• Please contact the manufacturer's support department for applications with nozzles
that are higher than indicated in the table.
5.3.2 Drip-off antenna PTFE 50 mm (2 in)
Information concerning threaded connections
• When screwing in, turn by the hex bolt only.
• Tool: open-ended wrench 55 mm
• Maximum permissible torque: 50 Nm (36 lbf ft)
Information about the mounting nozzle
The maximum nozzle length Hmax depends on the nozzle diameter D.
Maximum nozzle length Hmax as a function of the nozzle diameter D
D Hmax
H
øD
max
50 to 80 mm (2 to 3.2 in) 750 mm (30 in)
80 to 100 mm (3.2 to 4 in) 1 150 mm (46 in)
100 to 150 mm (4 to 6 in) 1 450 mm (58 in)
≥150 mm (6 in) 2 200 mm (88 in)
In the case of longer nozzles, reduced measuring performance must be expected.
Please note the following:
• The end of the nozzle must be smooth and free from burrs.
• The edge of the nozzle should be rounded.
• Mapping must be performed.
• Please contact the manufacturer's support department for applications with nozzles
that are higher than indicated in the table.

Micropilot FMR66B PROFIBUS PA Mounting
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5.3.3 Turning the housing
The housing can be rotated up to 380° by loosening the locking screw.
Your benefits
• Easy installation due to optimum alignment of housing
• Easily accessible device operation
• Optimum readability of the local display (optional)
11 1
BCD
AE
A0046660
A Plastic single compartment housing (no locking screw)
B Aluminum single compartment housing
C Single compartment housing, 316L, hygiene (no locking screw)
D Dual compartment housing
E Dual compartment housing, L-form
1 Locking screw
NOTICE
The housing cannot be unscrewed fully.
‣Loosen the external locking screw by a maximum of 1.5 turns. If the screw is
unscrewed too much or completely (beyond the screw anchor point), small parts
(counter disk) can become loose and fall out.
‣Tighten the securing screw (hexagon socket 4 mm (0.16 in)) with maximum
3.5 Nm (2.58 lbf ft) ± 0.3 Nm (0.22 lbf ft).
5.3.4 Turning the display module
LWARNING
Supply voltage switched on!
Risk of electric shock and/or explosion!
‣Switch off the supply voltage before opening the measuring device.
2.
1.
40.7 Nm
3.
4.
A0038224
1. If fitted: release the screw of the cover lock for the electronics compartment cover
using the Allen key.
2. Unscrew the electronics compartment cover from the transmitter housing and check
the cover seal.
3. Press the release mechanism and remove the display module.

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4. Turn the display module to the desired position: maximum 4 × 90 ° in each direction.
Fit the display module on the electronics compartment in the desired position until it
clicks into place. Screw the electronics compartment cover back onto the transmitter
housing. If fitted: tighten the screw of the cover lock using the Allen key
0.7 Nm (0.52 lbf ft)±0.2 Nm (0.15 lbf ft).
5.3.5 Changing the installation position of the display module
The installation position of the display can be changed in the case of the dual
compartment housing, L-form.
A0048401
LWARNING
Supply voltage switched on!
Risk of electric shock and/or explosion!
‣Switch off the supply voltage before opening the measuring device.
1 → 2 → 3 →
0.7 Nm
4 mm
2 x
1.
2.
2.
1.
A0046831 A0046832 A0046833
‣If fitted: release the screw of
the cover lock for the display
cover using the Allen key.
‣Unscrew the display cover and
check the cover seal.
‣Press the release mechanism,
remove the display module.

Micropilot FMR66B PROFIBUS PA Mounting
Endress+Hauser 19
4 → 5 → 6 →
0.7 Nm
4 mm
2 x
1.
2.
A0046834 A0046923 A0046924
‣Release the connection. ‣If fitted: release the screw of
the cover lock for the
connection compartment cover
using the Allen key.
‣Unscrew the connection
compartment cover, check the
cover seal. Screw this cover
onto the electronics
compartment instead of the
display cover. If fitted: tighten
the screw of the cover lock
using the Allen key
7 → 8
Display
1.
2.
A0048406 A0046928
‣Plug in the connection for the
display module in the
connection compartment.
‣Fit the display module in the
desired position until it clicks
into place.
‣Screw the display cover firmly
back onto the housing. If fitted:
tighten the screw of the cover
lock using the Allen key
0.7 Nm (0.52 lbf ft).
5.3.6 Closing the housing covers
NOTICE
Thread and housing damaged from dirt!
‣Remove dirt (e.g. sand) on the cover and housing thread.
‣If you encounter resistance when closing the cover, check the thread for dirt and clean
it.
Housing thread
The threads of the electronics and connection compartment can be coated with an
anti-friction coating.
The following applies for all housing materials:
Do not lubricate the housing threads.
5.4 Post-mounting check
 Is the device free from damage (visual inspection)?
 Are the measuring point identification and labeling correct (visual inspection)?

Mounting Micropilot FMR66B PROFIBUS PA
20 Endress+Hauser
 Is the measuring device protected against precipitation and sunlight?
 Are the securing screws and cover lock tightened securely?
 Does the measuring device comply with the measuring point specifications?
For example:
•  Process temperature
•  Process pressure
•  Ambient temperature
•  Measuring range