Siemens SITRANS LR250 Kompaktbetriebsanleitung Seite 18

4.4.3 Hygienic versions
WARNING
Loss of sanitary approvals
Loss of sanitary approvals can result from improper installation/mounting.
Take special care when installing in hygienic or sanitary applications. Comply with installation/mounting guidelines to
•
ensure cleanliness and the ability to keep the wetted parts in a position to be readily cleanable. (See relevant
EHEDG/3A documentation - not supplied).
NOTICE
Loss of sanitary approvals
For 3-A Sanitary Approved device installation where the customer tank process connection exists, a leak detection port
•
of minimum 2.4 mm diameter must be provided at the lowest point in the process connection where leakage can occur.
If leakage is detected at any time while the device is installed, then the device process connection parts must be
•
disassembled and thoroughly cleaned prior to gasket replacement and reassembly.
Note
For Hygienic encapsulated antenna, the lens acts as a gasket/seal and should be used in conjunction with a cleanable
•
seal as required by the specific process connections (for example, DIN 11864-3).
Hygienic encapsulated antenna leak detection port
①
Orientation mark for leak detection port
②
Leak detection port
4.5 Disassembly
DANGER
Pressure applications
Danger to personnel, system and environment will result from improper disassembly.
Never attempt to loosen, remove, or disassemble process connection while vessel contents are under pressure.
•
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SITRANS LR250 (FOUNDATION FIELDBUS)
A5E33472700-AA, 08/2014