7 Maintenance PROline Promass 80
58 Endress+Hauser
7 Maintenance
The Promass 80 flow measuring system requires no special maintenance.
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.
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 Page 146 ff.).
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) → Page 59.
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