Proline Promass 83E/F/O Operation Manual - FMC Technologies

Maintenance Proline Promass 837 MaintenanceNo special maintenance work is required.7.1 Exterior cleaningWhen cleaning the exterior of measuring devices, always use cleaning agents that do not attack thesurface of the housing and the seals.7.2 Cleaning with pigs (Promass H, I, S, P)If pigs are used for cleaning, it is essential to take the inside diameters of measuring tube and processconnection into account, see Technical Information ä 148.!Note!7.3 Replacing sealsUnder normal circumstances, fluid wetted seals of the Promass A sensors do not requirereplacement. Replacement is necessary only in special circumstances, for example if aggressive orcorrosive fluids are incompatible with the seal material.• The period between changes depends on the fluid properties and on the frequency of cleaningcycles in the case of CIP/SIP cleaning• Replacement seals (accessories)Page 82 • MN0M022Issue/Rev. 0.2 (12/12)