Endress+Hauser Liquicap M FMI52 PFM User manual

Products Solutions Services
Operating Instructions
Liquicap M
FMI52 PFM
Capacitive
Continuous level measurement for liquids
BA01986F/00/EN/02.21
71510168
2021-02-01
Valid as of version
01.03.zz

Liquicap M FMI52 PFM
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

Liquicap M FMI52 PFM Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 5
1.1 Document function ..................... 5
1.2 Document conventions ................... 5
1.2.1 Safety symbols .................. 5
1.2.2 Electrical symbols ................ 5
1.2.3 Tool symbols .................... 5
1.2.4 Symbols for certain types of
information and graphics ........... 6
1.3 Documentation ........................ 7
1.3.1 Technical Information ............. 7
1.3.2 Certificates ..................... 7
1.3.3 Hygienic compatibility ............. 8
1.4 Registered trademarks ................... 8
2 Basic safety instructions ............ 9
2.1 Requirements for the personnel ............ 9
2.2 Workplace safety ....................... 9
2.3 Operational safety ...................... 9
2.3.1 Ex-area ........................ 9
2.4 Product safety ......................... 9
3 Incoming acceptance and product
identification ..................... 10
3.1 Incoming acceptance ................... 10
3.2 Product identification ................... 10
3.3 Storage and transport .................. 10
4 Mounting ......................... 11
4.1 Quick installation guide ................. 11
4.2 Mounting requirements ................. 11
4.2.1 Mounting the sensor ............. 11
4.2.2 Measuring condition ............. 12
4.2.3 Minimum probe length for
nonconductive media < 1 µS/cm .... 12
4.2.4 Installation examples ............ 13
4.3 Probe with separate housing ............. 15
4.3.1 Extension heights: separate housing .15
4.3.2 Wall bracket ................... 16
4.3.3 Wall mounting ................. 17
4.3.4 Pipe mounting ................. 17
4.3.5 Shortening the connecting cable .... 18
4.4 Installation instructions ................. 19
4.4.1 Probe installation ............... 20
4.4.2 Aligning the housing ............. 21
4.4.3 Sealing the probe housing ......... 21
4.5 Post-installation check .................. 21
5 Electrical connection .............. 23
5.1 Connecting requirements ................ 23
5.1.1 Potential equalization ............ 23
5.1.2 Electromagnetic compatibility
(EMC) ........................ 23
5.1.3 Cable specification ............... 23
5.1.4 Connector ..................... 24
5.1.5 Supply voltage .................. 24
5.2 Wiring and connecting .................. 24
5.2.1 Connection compartment ......... 24
5.2.2 Cable entry .................... 25
5.2.3 Supply voltage .................. 26
5.2.4 Power consumption .............. 26
5.2.5 Current consumption ............. 26
5.2.6 Terminal assignment ............. 26
5.3 Post-connection check .................. 26
6 Operation options ................. 27
6.1 Display and operating elements ........... 27
7 Commissioning .................... 28
7.1 Function check ....................... 28
7.2 Transmitter .......................... 28
8 Diagnostics and troubleshooting ... 29
8.1 Diagnostic information via LEDs ........... 29
8.1.1 Green LED is not flashing ......... 29
8.1.2 Red LED flashing ................ 29
8.2 Application errors ..................... 29
8.3 Possible measuring errors ............... 29
8.3.1 Measured value is incorrect ........ 29
8.4 Firmware history ...................... 30
9 Maintenance ...................... 31
9.1 External cleaning ...................... 31
9.2 Cleaning the probe ..................... 31
9.3 Seals ............................... 31
9.4 Endress+Hauser services ................ 31
10 Repair ............................ 32
10.1 General notes ........................ 32
10.2 Spare parts .......................... 32
10.3 Repairing Ex-certified devices ............. 32
10.4 Return .............................. 33
10.5 Disposal ............................ 33
10.5.1 Removing the measuring device ..... 33
10.5.2 Disposing of the measuring device ... 33
10.6 Replacement ......................... 33
11 Accessories ....................... 34
11.1 Protective cover ....................... 34
11.2 Shortening set for FMI52 ................ 34
11.3 Surge arresters ....................... 34
11.3.1 HAW562 ..................... 34
11.3.2 HAW569 ..................... 34
11.4 Weld-in adapter ...................... 34

Table of contents Liquicap M FMI52 PFM
4 Endress+Hauser
12 Technical data .................... 35
12.1 Probe .............................. 35
12.1.1 Capacitance values of the probe ..... 35
12.1.2 Additional capacitance ........... 35
12.1.3 Probe lengths for continuous
measurement in conductive liquids .. 35
12.2 Input ............................... 35
12.2.1 Measured variable ............... 35
12.2.2 Measuring range ................ 35
12.3 Output ............................. 36
12.3.1 Output signal .................. 36
12.3.2 Signal on alarm ................. 36
12.3.3 Linearization ................... 36
12.4 Performance characteristics .............. 36
12.4.1 Reference operating conditions ..... 36
12.4.2 Maximum measured error ......... 36
12.4.3 Influence of ambient temperature ... 36
12.4.4 Switch-on behavior .............. 36
12.4.5 Measured value reaction time ...... 36
12.4.6 Accuracy of factory calibration ...... 37
12.4.7 Resolution ..................... 38
12.5 Operating conditions: Environment ........ 38
12.5.1 Ambient temperature range ....... 38
12.5.2 Climate class ................... 38
12.5.3 Vibration resistance ............. 38
12.5.4 Shock resistance ................ 38
12.5.5 Cleaning ...................... 38
12.5.6 Degree of protection ............. 38
12.5.7 Electromagnetic compatibility
(EMC) ........................ 39
12.6 Operating conditions: Process ............. 39
12.6.1 Process temperature range ........ 39
12.6.2 Process pressure limits ........... 41
12.6.3 Pressure and temperature derating .. 42
Index .................................. 44

Liquicap M FMI52 PFM About this document
Endress+Hauser 5
1 About this document
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
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 Electrical symbols
Alternating current
Direct current and alternating current
Direct current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
Protective earth (PE)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the interior and exterior of the device:
• Interior ground terminal: protective earth is connected to the mains supply.
• Exterior ground terminal: device is connected to the plant grounding system.
1.2.3 Tool symbols
Phillips head screwdriver

About this document Liquicap M FMI52 PFM
6 Endress+Hauser
Flat blade screwdriver
Torx screwdriver
Allen key
Open-ended wrench
1.2.4 Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted
Preferred
Procedures, processes or actions that are preferred
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
Help in the event of a problem
Visual inspection
Operation via operating tool
Write-protected parameter
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
-
Hazardous area
Indicates the hazardous area
.
Safe area (non-hazardous area)
Indicates the non-hazardous area
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions

Liquicap M FMI52 PFM About this document
Endress+Hauser 7
Temperature resistance of the connection cables
Specifies the minimum value of the temperature resistance of the connection cables
LED not lit
LED lit
LED flashes
1.3 Documentation
1.3.1 Technical Information
Liquicap M FMI52
TI01524F
1.3.2 Certificates
ATEX safety instructions
Liquicap M FMI52
• II 1/2 G Ex ia IIC T3...T6 Ga/Gb
II 1/2 G Ex ia IIB T3...T6 Ga/Gb
II 1/2 D Ex ia IIIC T90 °C Da/Db
XA00327F
• II 1/2 Ex ia/db IIC T6...T3 Ga/Gb
II 1/2 Ex ia/db eb IIC T6...T3 Ga/Gb
II 1/2 D Ex ia /tb IIIC T90 °C Da/Db
XA00328F
• Ga/Gb Ex ia IIC T3...T6
Zone 20/21 Ex iaD 20/Ex tD A21 IP65 T 90 °C
IECEx BVS 08.0027X
XA00423F
• II 3 G Ex nA IIC T6 Gc
II 3 G Ex nA nC IIC T5 Gc
II 3C D Ex tc IIIC T100 °C Dc
XA00346F
INMETRO safety instructions
Liquicap M FMI52
• Ex d [ia Ga] IIB T3...T6 Ga/Gb
Ex d [ia Ga] IIC T3...T6 Ga/Gb
Ex de [ia Ga] IIC T3...T6 Ga/Gb
XA01171F
• Ex ia IIC T* Ga/Gb
Ex ia IIB T* Ga/Gb
Ex ia IIIC T90 °C Da/Db IP66
XA01172F

About this document Liquicap M FMI52 PFM
8 Endress+Hauser
NEPSI safety instructions
• Liquicap M FMI52
Ex ia IIC/IIB T3...T6 Ga/Gb
XA00417F
• Liquicap M FMI52
Ex d ia IIC/IIB T3/T4/T6 Ga/Gb
Ex d e ia IIC/IIB T3/T4/T6 Ga/Gb
XA00418F
• Liquicap M FMI52
Ex nA IIC T3...T6 Gc
Ex nA nC IIC T3...T6 Gc
XA00430F
Overfill protection DIBt (WHG)
Liquicap M FMI52
ZE00265F
Functional safety (SIL2)
Liquicap M FMI52
SD00198F
Control Drawings (CSA and FM)
• Liquicap M FMI52
FM IS
ZD00220F
• Liquicap M FMI52
CSA IS
ZD00221F
• Liquicap M FMI52
CSA XP
ZD00233F
1.3.3 Hygienic compatibility
Information regarding device versions that meet the requirements of 3A Sanitary Standard
No. 74 and/or are certified by the EHEDG:
SD02503F
Suitable fittings and seals must be used to ensure hygiene-compliant design according
to 3A and EHEDG specifications.
Comply with the maximum permitted temperature of the process seal.
The gap-free connections can be cleaned of all residue using the typical cleaning
methods within this industry (CIP and SIP).
1.4 Registered trademarks
HART®
Registered trademark of the FieldComm Group, Austin, USA
TRI CLAMP®
Registered trademark of Alfa Laval Inc., Kenosha, USA

Liquicap M FMI52 PFM Basic safety instructions
Endress+Hauser 9
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel must fulfill the following requirements to carry out the necessary tasks:
‣Are trained, qualified to perform specific functions and tasks.
‣Are authorized by the plant owner or operator to perform specific tasks.
‣Are familiar with federal or national regulations.
‣Have read and understood the instructions in the manual and supplementary
documentation.
‣They follow instructions and comply with conditions.
2.2 Workplace safety
For work on and with the device:
‣Wear the required protective equipment according to federal or national regulations.
2.3 Operational safety
When performing configuration, testing, and maintenance work on the device, alternative
supervisory measures must be taken to guarantee the operational safety and process
safety.
2.3.1 Ex-area
When using the measuring system in Ex-areas, the appropriate national standards and
regulations must be observed. Separate Ex-documentation, which constitutes an integral
part of this documentation, is supplied with the device. The installation procedures,
connection data and safety instructions it contains must be observed.
• Make sure that the technical staff has adequate training.
• The special measuring and safety-related requirements for the measuring points must
be observed.
2.4 Product safety
This measuring device is designed following 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 general safety standards and legal requirements. It is compliant 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.

Incoming acceptance and product identification Liquicap M FMI52 PFM
10 Endress+Hauser
3 Incoming acceptance and product
identification
3.1 Incoming acceptance
Check whether the packaging or content is damaged. Check that the goods delivered are
complete and compare the scope of delivery with the information in your order.
3.2 Product identification
The measuring device can be identified in the following ways:
• nameplate data
• extended order code with a breakdown of the device features on the delivery note
• the serial number from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): all of the information on the measuring device is
displayed along with an overview of the scope of the technical documentation provided
• the serial number on the nameplate into the Endress+Hauser Operations App or use the
Endress+Hauser Operations App to scan the 2-D matrix code (QR Code) on the
nameplate
Dat.:
IP66/ IP67
NEMA4X
Order Code.:
Ser.No.:
mm
Output:
L1 =
L3 =
L =
mm
mm
1
2
3
4
5
67
9
8
10
11
12
13 14
15
A0040359
 1 The nameplate
2 Order number
3 Serial number
4 Electronic insert
5 Electronic insert output value
6 Ambient temperature at housing
7 Max. permissible pressure in a tank
8 Safety certificates
9 Functional safety
10 Probe length values
11 ATEX approval
12 WHG approval (German Water Resources Act)
13 Safety information
14 Production date
15 Bar code
3.3 Storage and transport
For storage and transportation, pack the device to protect it against impact. The original
packing offers the best protection for this. The permitted storage temperature is
–50 to +85 °C (–58 to +185 °F).