Endress+Hauser Liquiphant FTL31 User manual

Products Solutions Services
Operating Instructions
Liquiphant FTL31
Point level switch for liquids
BA01285F/00/EN/03.22-00
71578503
2022-07-12

Liquiphant FTL31
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

Liquiphant FTL31 Table of contents
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Table of contents
1 Document information ......... 4
1.1 Document function ................... 4
1.2 Symbols ............................ 4
1.3 Documentation ...................... 5
2 Basic safety instructions ....... 6
2.1 Requirements for the personnel ........ 6
2.2 Intended use ........................ 6
2.3 Workplace safety .................... 6
2.4 Operational safety ................... 7
2.5 Product safety ....................... 7
3 Product description ............. 8
3.1 Product design ....................... 8
4 Incoming acceptance and
product identification .......... 9
4.1 Incoming acceptance ................. 9
4.2 Product identification ................. 9
4.3 Manufacturer address ................ 9
4.4 Storage and transport ................. 9
5 Mounting ...................... 11
5.1 Mounting requirements .............. 11
5.2 Mounting the measuring device ....... 16
5.3 Post-mounting check ................ 17
6 Electrical connection .......... 18
6.1 Connecting the device ............... 18
6.2 Post-connection check ............... 27
7 Commissioning ................ 29
7.1 Function check ..................... 29
7.2 LED display ........................ 29
7.3 Function of LEDs ....................31
7.4 Function test with test magnet ........ 31
8 Diagnostics and
troubleshooting ............... 33
8.1 Diagnostic information via LED
display ............................ 33
9 Maintenance .................. 33
9.1 Cleaning ........................... 33
10 Repair .......................... 34
10.1 Spare parts ........................ 34
10.2 Return ............................ 34
10.3 Disposal ........................... 34
11 Accessories .................... 34
12 Technical data ................. 36
12.1 Power supply ....................... 36
12.2 Environment ....................... 36
12.3 Process ............................ 38

Document information Liquiphant FTL31
4 Endress+Hauser
1 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 Symbols
1.2.1 Safety instructions
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
NOTE!
This symbol contains information on procedures and other facts which do not result in personal
injury.
1.2.2 Electrical symbols
Symbol Meaning
)
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.
1.2.3 Symbols for certain types of information
Symbol Meaning
A0011182
Permitted
Indicates procedures, processes or actions that are permitted.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.

Liquiphant FTL31 Document information
Endress+Hauser 5
Symbol Meaning
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.
1.2.4 Symbols for graphics
Symbol Meaning
1, 2, 3 ... Item numbers
A, B, C, ... Views
1.2.5 Symbols for tools
Symbol Meaning
A0011222
Open-ended wrench
1.3 Documentation
The document types listed are available in the Download Area of the Endress+Hauser website:
www.endress.com → Download
Document Purpose and content of the document
Technical Information
TI01147F/00/EN
This document contains all the technical data for the device and provides an overview of
the accessories that can be ordered.
Additional documentation
TI00426F/00/EN
SD00352F/00/A6
SD00356F/00/EN
Weld-in adapter and flanges (overview)
Weld-in adapter G 1", G ¾" (installation instructions)
Valve plug (installation instructions)

Basic safety instructions Liquiphant FTL31
6 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel performing installation, commissioning, diagnostics and maintenance must
satisfy 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 starting work: read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the application)
• Follow instructions and comply with basic conditions
The operating personnel must satisfy the following requirements:
• Are instructed and authorized according to the requirements of the task by the facility's
owner-operator
• Follow the instructions in this manual
2.2 Intended use
The measuring device described in this manual may be used only as a point level switch for
liquids. Incorrect use may pose a hazard. To ensure that the measuring device remains in
perfect condition during the operating time:
• Measuring devices must be used only for media to which the process-wetted materials have
an adequate level of resistance.
• Comply with the limit values in the "Technical data" section.
2.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Residual risks
Due to heat transfer from the process, the temperature of the electronics housing and the
assemblies contained therein may rise to 80 °C (176 °F) during operation.
Danger of burns from contact with surfaces!
‣In the event of elevated fluid temperatures, ensure protection against contact 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.
‣Switch off the supply voltage before connecting the device.

Liquiphant FTL31 Basic safety instructions
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2.4 Operational safety
Danger 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.
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 it
is safe to operate. It meets the 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.

Product description Liquiphant FTL31
8 Endress+Hauser
3 Product description
The Liquiphant FTL31 is a point level switch for universal use in all liquids. It is used
preferably in storage tanks, mixing vessels and pipes.
3.1 Product design
The point level switch is available in different versions, which can be assembled in accordance
with user specifications. Examples in the graphic below:
ACD
B
A0022228
Versions
Examples
A B C D
Electrical connection Valve plug
Cable
(cannot be
disassembled)
M12 plug
for housing cover
IP66/68/69K
M12 plug
for housing cover
IP65/67
Housing (sensor design)
for process temperatures
up to:
100 °C (212 °F) 100 °C (212 °F) 150 °C (302 °F) 150 °C (302 °F)
Sensor type Compact
version Short tube version Compact version Short tube version
For detailed information on the short tube version and the process connections, see the
Technical Documentation TI01147F/00/EN.

Liquiphant FTL31 Incoming acceptance and product identification
Endress+Hauser 9
4 Incoming acceptance and product identification
4.1 Incoming acceptance
Check the following during incoming acceptance:
 Are the order codes on the delivery note and the product sticker identical?
 Are the goods undamaged?
 Do the nameplate data match the ordering information on the delivery note?
 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 the identification of the measuring device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
‣Enter the serial number from the nameplates into W@M Device Viewer
(www.endress.com/deviceviewer)
 All the information about the measuring device and the scope of the associated
Technical Documentation are displayed.
‣Enter the serial number from the nameplate into the Endress+Hauser Operations App or
use the Endress+Hauser Operations App to scan the 2-D matrix code (QR Code) provided on
the nameplate
 All the information about the measuring device and the scope of the associated
Technical Documentation are displayed.
4.3 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Place of manufacture: See nameplate.
4.4 Storage and transport
4.4.1 Storage conditions
• Permitted storage temperature: –40 to +85 °C (–40 to +185 °F)
• Use original packaging.
4.4.2 Transporting the product to the measuring point
Transport the device to the measuring point in the original packaging.

Incoming acceptance and product identification Liquiphant FTL31
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4.4.3 Handling of the device
NOTICE
Risk of injury! Housing or fork may become damaged or tear!
‣Transport the device to the measuring point in its original packaging or by the housing.
‣Do not hold the device by the fork!
‣Do not use the device as a ladder or climbing aid!
‣Do not bend the fork!
‣Do not shorten or lengthen the fork!
A0020845
 1 Handling of the device