Siemens SITRANS L Operating Instructions Manual page 31

Improper installation
Danger to personnel, system and environment can result from improper installation.
• Installation shall only be performed by qualified personnel and in accordance with local
NOTICE
Device handling
Damage to device may result from improper handling.
• Handle the device using the enclosure, not the process connection or tag, to avoid
• Take special care when handling the threaded PVDF and Hygienic or Flanged
Note
• For European Union and member countries, installation must be according to
ETSI EN 302372.
• Refer to the device nameplate for approval information.
Note
Do not remove the PTFE or polypropylene lens. It is a critical component for operation.
Note
The outer part of the lens on the PTFE flanged encapsulated antenna version may not appear
to lie flush before installation and this is normal. This will flatten after installation and will not
impact the performance of the device.
Pressure applications
Danger of injury or poisoning.
It will be necessary to use PTFE tape or other appropriate thread sealing compound, and to
tighten the process connection beyond hand-tight. (The maximum recommended torque
for Threaded versions is 40 N-m (30 ft.lbs.) See Flanged versions (Page 32) for FEA
recommended torque values.)
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH
WARNING
governing regulations.
damage.
encapsulated antennas. Any damage to the antenna surface, particularly to the tip/lens,
could affect performance. (For example, do not sit device on its lens antenna.)
WARNING
Installing/mounting
4.4 Installation instructions
31