Unit Repair And Excluded Liability; Part Replacement - Siemens SITRANS LR250 Instrucciones De Servicio Resumidas

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8.3.1

Unit repair and excluded liability

All changes and repairs must be done by qualified personnel, and applicable safety regulations must be followed. Please note
the following:
● The user is responsible for all changes and repairs made to the device.
● All new components must be provided by Siemens.
● Restrict repair to faulty components only.
● Do not re-use faulty components.
8.3.2

Part replacement

If the antenna, lens, secondary O-ring, and spring washers require replacement due to damage or failure, they may be replaced
without the need for re-calibration if of the same type and size.
Replacing the antenna
Changing to a different antenna type may be performed by a Siemens authorized repair center or personnel.
If the electronics or enclosure require replacement due to damage or failure, please ensure the correct antenna version is used,
otherwise a re-calibration will need to be performed by Siemens authorized personnel.
Replacing the lens
1. Remove existing lens by turning it counter-clockwise until it separates from the unit.
2. Replace the O-ring between the lens and process connection with a new one.
3. Carefully thread the replacement lens, and turn it clockwise until resistance is encountered.
Do not over-tighten the lens, as this will permanently damage it.
4. For flange installation instructions, see Flanged versions (Page 14).
Note
After installation of the new lens onto the flanged encapsulated antenna version and before mounting on the vessel/tank,
some lenses may not appear to lie flush on the device, but this is normal and will not impact performance.
See full operating instructions for part numbers.
8.4
Disposal
Note
Special disposal required
The device includes components that require special disposal.
Dispose of the device properly and environmentally through a local waste disposal contractor.
34
SITRANS LR250 (mA/HART)
A5E33469191-AA, 08/2014

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