The following procedures must be carried out before a flowmeter requiring repair or calibration, for example, is returned to Endress+Hauser:
Always enclose a duly completed “Declaration of contamination” form. Only then can Endress+Hauser transport, examine and repair a returned device.
Enclose special handling instructions if necessary, for example a safety data sheet as
per EN 91/155/EEC.
Remove all residues. Pay special attention to the grooves for seals and crevices which
could contain residues. This is particularly important if the substance is hazardous to
health, e.g. flammable, toxic, caustic, carcinogenic, etc.