Min­i­mal main­te­nance means low-life­time cost for Michell’s latest QCM anal­yser

DEMM Engineering & Manufacturing - - PRODUCT WATCH -

Michell In­stru­ments has launched its new pre­ci­sion mois­ture anal­yser – the QMA401 – fea­tur­ing the latest gen­er­a­tion of quartz crys­tal mi­crobal­ance (QCM) sen­sor and de­signed to pro­vide con­sis­tently ac­cu­rate mea­sure­ments of trace mois­ture. This con­sis­tency is achieved via a self-cal­i­bra­tion sys­tem which ad­justs the anal­yser against an in­ter­nal mois­ture gen­er­a­tor. Long term sta­bil­ity of these mea­sure­ment cor­rec­tions is guar­an­teed, as the mois­ture gen­er­a­tor is supplied with a cal­i­bra­tion trace­able to NPL and NIST.

Main­tain­ing the sys­tem is sim­ple, in­fre­quent and in­ex­pen­sive. No ser­vice at all is re­quired for two years, at which point the des­ic­cant dryer must be re­placed – a process that can be car­ried out by the user in less than 10 min­utes. The in­ter­nal mois­ture gen­er­a­tor can be re­placed sim­ply in the field with a freshly cal­i­brated unit from the fac­tory af­ter three years of op­er­a­tion.

The long main­te­nance in­ter­vals of the prod­uct, in com­bi­na­tion with the com­pet­i­tively priced spares means that the cost of own­ing a QMA401 over five years is less than half the cost of own­ing the lead­ing com­pet­ing prod­uct.

The QMA401 is easy to use with an in­tu­itive touch screen in­ter­face for mon­i­tor­ing, log­ging and con­fig­ur­ing pa­ram­e­ters.

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