This manual is an integral part of the PF55S and must be keptwithin close proximity of the system for personnel to access at alltimes. This manual enables the device to be handled safely andefficiently. In the event of a resale, the PF55S manual must behanded over to the new owner.Personnel must have carefully read through and understood thismanual before starting any work. Following all safety guidelinesand instructions in this manual is the basic prerequisite for safework. Furthermore, the local health and safety regulations and gen-eral safety regulations for the field of application of the PF55S alsoapply.The diagrams in this manual are examples. There may be differ-ences at the discretion of Baumer.Baumer will regularly update this operating manual. Should younotice that information is missing or that there is an error, pleasenotify Baumer.Contact Baumer if you have any questions concerning this manual.We, Baumer Group, constantly strive to improve our products.Help us to make Baumer products even safer.Notify us of each hazardous situation that occurs in relation toBaumer products:n Hazards that arise from the productn Hazards that arise from handling the productn Hazards that arise due to contact between materials and theproductIn this case, please include the following information, if known:n Affected productn Description of the hazardous situationn Sketches, photosn Name and contact information in case of any queriesBaumer will process the information as soon as possible.Due to the sometimes very short innovation cycles for electricalparts, it is possible for the original manufacturer to withdraw prod-ucts from the market early on (parts discontinuation).This can mean that the availability of replacement parts beinglimited, and that the original assembly cannot be repaired. There-fore, in the event of repairs, Baumer Group reserves the right toreplace the entire assembly concerned with another assembly withan identical or extended functionality.In addition to this document, the operating manual and the safetyadvice contained therein for the components of the PF55S and thehigher-level machine also apply.Information on the operatingmanualPlease helpNote on electrical partsOther applicable documentsSupplemental directives05.03.2020 Flow sensor PF55S 3