Threaded Versions; Flanged Versions - Siemens SITRANS LR250 Instrucciones De Servicio Resumidas

WARNING
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 governing regulations.
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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 damage.
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Take special care when handling the threaded PVDF and Hygienic or Flanged encapsulated antennas. Any damage to
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the antenna surface, particularly to the tip/lens, could affect performance. (For example, do not sit device on its lens
antenna.)
Note
For European Union and member countries, installation must be according to ETSI EN 302372.
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Refer to the device nameplate for approval information.
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Note
The outer part of the lens on the 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.
4.4.1

Threaded versions

WARNING
Pressure applications
Danger of injury or poisoning.
It may 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.)
1. Before inserting the device into its mounting connection, check to ensure the threads are matching, to avoid damaging them.
2. Simply screw the device into the process connection, and hand tighten, or use a wrench.
4.4.2

Flanged versions

NOTICE
Improper materials
The user is responsible for the selection of bolting and gasket materials (except for Flanged encapsulated antenna) which
will fall within the limits of the process connection and its intended use, and which are suitable for the service conditions.
Special Instructions for Flanged encapsulated antenna only
Note
Use spring washers
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Lens assembly acts as integral gasket, no other required
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Use recommended torque values for tightening bolts
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SITRANS LR250 (mA/HART)
A5E33469191-AA, 08/2014