ABB AP200 Series User Manual

Contents

ABB AP200 Series User Manual Manual pdf 11 page image

9Twin Wash NozzlesMaintenanceCleaningScrewFig. 2.7 Typical Jetwash InstallationFig. 2.8 Location of Jetwash NozzlegnitaoC tnegAgninaelCsliOdnaesaerG stnevloselbulos-retawrostnegretedenilaklAslohoclasahcussniseR silaklaetuliDsetanobraC/enotsemiL dicacirtinM1sedixordyhlateMdicacirtinrociruhplusM1sedinayClacigoloibyvaeHsnietorP dnadicacirtinrociruhplusM1foerutxiM)detarutas(nispepserbiF gnittewtuohtiwrohtiwretawdezirusserPstnegalacigoloibthgiL retawdezirusserP)wolebetoNees(xetaL retawdlocdezirusserPMains waterorPressurizedcleaningsolutionTransmitterwith autocleanrelay contactSolenoidValvePumpReservoir(water orcleaningsolution)ORUse a non-return valveto maintainoptimumperformance2.4 Jetwash System – Figs 2.6 to 2.8Note. Installation must be carried out in accordancewith local water company and council bylaws.The jetwash system enables automatic cleaning of both themeasuring element and the reference junction by spraying eitherwater or a cleaning solution at them in situ, thus reducing systemmaintenance requirements.An external pump or solenoid valve is required, controlled by apH analyzer with auto-cleaning control functions.Note. For optimal performance, the pressure of thejetwash system should be 2 to 3 bar (30 to 45 psi)greater than the process pressure.2 MECHANICAL INSTALLATION…Note. If removed from the process the latex must becompletely removed quickly before it hardens.Cleaning SolutionsThe spray jet tube is available in 316 stainless steel. Some typicalcleaning solutions are: