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PRODUCTS &PROCESSES


ASCOTT ANALYTICAL ‘ELECTRONIC CATCHPOTS®


Asophisticated


and highly effective means of maximising the repeatability and accuracy of salt fog fall-out measure-


ment in corrosion test chambers has been introduced by Ascott Analytical Equipment, which is claimed will revolutionise the tradi- tional salt spray test


Building on the success and popularity of the previous manual ‘Catchpots® ‘Electronic Catchpots®


’design, the new ’automatically measure


and maintain the required salt spray fall-out without the need for operator intervention and potential risks to the testing process.


Conventionally,the measurement of salt spray contained within asalt spray test chamber has been undertaken manually via collection vessels, located at key points, which are removed for assessment at regular intervals. This enables the operator to make amanual adjustment of the salt spray content in order to maintain fall-out within specified limits – typically,1-2ml per 80cm² per hour.


“There are self-evident risks with this procedure which our Electronic Catchpots®


design


now eradicates,” says Chris Gates, Ascott Analytical’s Managing Director.“Forexample,


manual intervention can often be time con- suming and inconvenient –particularly with long term testing –whilst it can also interrupt the testing process and potentially unsettle the climate inside the chamber.Equally,until each manual measurement is taken –which is a retrospective process –the operator may be unaware of the fall-out moving out of specification. This is afactor which could clearly invalidate the testing after the event.”


The Ascott Electronic Catchpots® can be fitted


to any of the company’s suffix ‘iP’salt spray or cyclic corrosion test chambers and provide a continuous measurement of the fall-out. They can then activate automatic adjustment of the salt spray delivery process to ensure that the operation remains within the specification.


The design uses asophisticated fluid weight measurement system that determines the precise quantity of salt spray fall-out collected over a period of time –the frequency of which can be set by the user.Results are displayed on the chamber’s high resolution operating screen, with the option then of linking directly to the salt spray delivery system for fully automatic control.


The salt spray fall-out collected by the Electronic Catchpots®


is one of the several chamber


variables that can be displayed on an Apple® iPad®


running asuitable application and


connected wirelessly to the same network that the chamber is connected to. “In order to promote this new technology,all Electronic Catchpots®


be delivered with afree Apple®


ordered will, for alimited period, iPad®


,which


provides aconvenient way of monitoring these chamber variables graphically,” Chris Gates concludes.


NB.Apple and iPad are trademarks of Apple Inc.


Tel: +44 (0) 1827 318040 www.ascott-analytical.com


46 SURFACEWORLD january 2013 read online @www.surfaceworld.com





AUTOMATICALLYENHANCE CORROSION TESTING RELIABILITY


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