KA01619F/00/EN/01.22-00
71588702
2022-10-03
*71588702*
71588702
These Brief Operating Instructions are not a substitute for the Operating Instructions pertaining to the device.
Detailed information is provided in the Operating Instructions and other documentation.
Available for all device versions via:
• Internet: www.endress.com/deviceviewer
• Smartphone/tablet: Endress+Hauser Operations app
Basic safety instructions
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
Intended use
The device described in this manual may be used only as a point level switch for
liquids. The device is suitable for use in areas with strict hygiene requirements.
Incorrect use of the device may pose a hazard.
Mounting
The mounting process is illustrated in the following section on the basis of
sample configurations. For detailed information, see the Operating
Instructions.
Mounting requirements
A
L1
32 mm
L2
2
1
A
Device with weld-in adapter
B
Device in customer socket
1
Flat seal
2
Weld-in adapter
3
Tuning fork
L1
With G 1" thread: 66,4 mm (2,61 in) / With G ¾" thread: 63,9 mm (2,52 in)
L2
With G 1" thread: 48,0 mm (1,89 in) / With G ¾" thread: 38,0 mm (1,5 in)
L3
With G 1" thread: 66,4 mm (2,61 in)
L4
With G 1" thread:47,9 mm (1,8 in)
Products
Brief Operating Instructions
Liquiphant FTL33
Point level switch for liquids in the food industry
B
L3
L4
3
32 mm
Solutions
To ensure that the device remains in proper condition for the operation time:
• Use the device only for media to which the wetted materials have an adequate
level of resistance
• Comply with the limit values, see the "Technical data" section of the Operating
Instructions
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.
Installation is possible in any position in a vessel, pipe or tank under the
following conditions:
• When installed horizontally in a vessel, the tuning fork may be located in an
installation socket only if liquids with low viscosity (< 2 000 mPa⋅s) are used.
• Minimum diameter of installation socket: 50 mm (2.0 in)
• Select a maximum length for the installation socket that enables the tuning
fork to project freely into the vessel.
• Ensure that there is sufficient distance between the expected buildup on the
tank wall and the fork. Recommended distance from wall ≥10 mm (0.39 in).
Important process conditions
Pressure and temperature (maximum):
• With weld-in adapter
• +25 bar (+362 psi) at +150 °C (+302 °F)
• +40 bar (+580 psi) at +100 °C (+212 °F)
• In customer socket
3
+40 bar (+580 psi) at +150 °C (+302 °F)
Operating altitude:
Up to 2 000 m (6 600 ft) above sea level
In the case of seals used at the customer site, pay attention to the
temperature and pressure specifications.
Services
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