Endress+Hauser Liquiphant FTL41 Technische Daten
Products Solutions Services
Brief Operating Instructions
Liquiphant FTL41
Vibronic
Point level switch in liquids
These Instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Detailed information about the device can be found in the
Operating Instructions and the other documentation:
Available for all device versions via:
• Internet: www.endress.com/deviceviewer
• Smart phone/tablet: Endress+Hauser Operations App
KA01411F/00/EN/03.22-00
71566285
2022-04-05
Associated documentation Liquiphant FTL41
2 Endress+Hauser
1 Associated documentation
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
2 About this document
2.1 Symbols
2.1.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
Liquiphant FTL41 About this document
Endress+Hauser 3
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.
2.1.2 Electrical symbols
Ground connection
Grounded clamp, which is grounded via a grounding system.
Protective earth (PE)
Ground terminals, which must be grounded prior to establishing any other connections. The
ground terminals are located on the inside and outside of the device.
2.1.3 Tool symbols
Flat-blade screwdriver
Allen key
Open-ended wrench
2.1.4 Symbols for certain types of information
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 another section
1.
,
2.
,
3.
Series of steps
2.1.5 Symbols in graphics
A, B, C ... View
1, 2, 3 ... Item numbers
-
Hazardous area
.
Safe area (non-hazardous area)
Basic safety instructions Liquiphant FTL41
4 Endress+Hauser
3 Basic safety instructions
3.1 Requirements for the personnel
The personnel must fulfill the following requirements to carry out the necessary tasks, e. g.,
commissioning and maintenance:
‣Trained, qualified specialists must have a relevant qualification for the specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Must have read and understood the instructions in the manual and supplementary
documentation
‣Follow instructions and comply with conditions
3.2 Intended use
• Only use the device for liquids
• Improper use can pose hazards
• Ensure that the measuring device is free of defects while it is in operation
• Use the device only for media to which the wetted materials have an adequate level of
resistance
• Do not exceed or drop below the relevant limit values for the device
For more details, see the Technical Documentation
3.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-intended 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!
‣If necessary, ensure protection against contact to prevent burns.
For requirements concerning functional safety in accordance with IEC 61508, the associated
SIL documentation must be observed.
3.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
3.4 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 ensuring the interference-free operation of the device.
Liquiphant FTL41 Incoming acceptance and product identification
Endress+Hauser 5
Modifications 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 Endress+Hauser.
Repair
To ensure continued operational safety and reliability:
‣Only perform repair work on the device if this is expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
Hazardous area
To eliminate danger to persons or the facility when the device is used in the hazardous area
(e.g. explosion protection):
‣Check the nameplate to verify whether the ordered device can be used for the intended
purpose in the hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an integral
part of this manual.
3.5 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.
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 data on the nameplate match the ordering information on the delivery note?
If required (see nameplate): are the Safety Instructions e.g. XA provided?
If one of these conditions is not met, please contact the manufacturer's sales office.
Mounting Liquiphant FTL41
6 Endress+Hauser
4.2 Product identification
The following options are available for the identification of the device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
• Enter 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 technical documentation provided.
• Enter the serial number on the nameplate into the Endress+Hauser Operations app or scan
the 2-D matrix code on the nameplate with the Endress+Hauser Operations app
4.2.1 Electronic insert
Identify the electronic insert via the order code on the nameplate.
4.2.2 Nameplate
The information that is required by law and is relevant to the device is shown on the
nameplate.
4.3 Storage and transport
4.3.1 Storage conditions
Use original packaging.
Storage temperature
–40 to +80 °C (–40 to +176 °F)
Transporting the device
• Transport the device to the measuring point in the original packaging
• Hold the device by the housing, flange or extension pipe
Do not bend, shorten or extend the tuning fork.
5 Mounting
LWARNING
Loss of protection rating if the device is opened in a wet environment.
‣Only open the device in a dry environment!
Mounting instructions
• Any orientation for device with short pipe up to approx. 500 mm (19.7 in)
• Vertical orientation from above for device with long pipe
• Minimum distance between the fork tip and the tank wall or pipe wall: 10 mm (0.39 in)
Liquiphant FTL41 Mounting
Endress+Hauser 7
A0036954
1 Installation examples for a vessel, tank or pipe
5.1 Mounting requirements
5.1.1 Take switch point into consideration
The following are typical switch points, depending on the orientation of the point level switch.
Water +23 °C (+73 °F)
Minimum distance between the fork tip and the tank wall or pipe wall: 10 mm (0.39 in)
~13 (0.5)
~4 (0.16)
~12.5 (0.49)
D
A B C
D
D
A0037915
2 Typical switch points. Unit of measurement mm (in)
A Installation from above
B Installation from below
C Installation from the side
D Switch point
Mounting Liquiphant FTL41
8 Endress+Hauser
5.1.2 Take viscosity into consideration
Viscosity values
• Low viscosity : < 2 000 mPa⋅s
• High viscosity: > 2 000 to 10 000 mPa⋅s
Low viscosity
It is permitted to position the tuning fork within the installation socket.
> 25 (0.98)
> !50 (1.97)
A0033297
3 Installation example for low-viscosity liquids. Unit of measurement mm (in)
High viscosity
NOTICE
Highly viscous liquids may cause switching delays.
‣Make sure that the liquid can run off the tuning fork easily.
‣Deburr the socket surface.
The tuning fork must be located outside the installation socket!
> 40 (1.57)
A0037348
4 Installation example for a highly viscous liquid. Unit of measurement mm (in)
Liquiphant FTL41 Mounting
Endress+Hauser 9
5.1.3 Avoid buildup
A0033239
5 Installation examples for a highly viscous process medium
5.1.4 Take clearance into consideration
A0033236
6 Take clearance outside the tank into consideration
Mounting Liquiphant FTL41
10 Endress+Hauser
5.1.5 Support the device
Support the device in the event of severe dynamic load. Maximum lateral loading capacity of
the pipe extensions and sensors: 75 Nm (55 lbf ft).
A0031874
7 Examples of support in the event of dynamic load
Marine approval: In the case of pipe extensions or sensors longer than 1 600 mm, a
support is needed at least every 1 600 mm.
5.1.6 Weld-in adapter with leakage hole
Weld in the weld-in adapter in such a way that the leakage hole is pointing downwards. This
enables any leaks to be detected quickly.
316L
A0039230
8 Weld-in adapter with leakage hole
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