Maintenance Proline Promass 83 PROFIBUS DP/PA
116 Endress+Hauser
7 Maintenance
No special maintenance work is required.
7.1 Exterior cleaning
When cleaning the exterior of measuring devices, always use cleaning agents that do not attack the
surface of the housing and the seals.
7.2 Cleaning with pigs (Promass H, I)
If pigs are used for cleaning, it is essential to take the inside diameters of measuring tube and process
connection into account. See also Technical Information. → Page 171
7.3 Replacing seals
Under normal circumstances, fluid wetted seals of the Promass A and Promass M sensors do not
require replacement. Replacement is necessary only in special circumstances, for example if
aggressive or corrosive fluids are incompatible with the seal material.
!
Note!
• The period between changes depends on the fluid properties and on the frequency of cleaning
cycles in the case of CIP/SIP cleaning.
• Replacement seals (accessories)
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