italki - positive agitation & time - to - empty signal descriptions of a vacuum cleaner, what does it mean?

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lanlan

positive agitation & time - to - empty signal descriptions of a vacuum cleaner, what does it mean?

13 janv. 2016 06:33

'Time-to-empty signal' is a buzzer that goes off (an alarm sound) , or a light that flashes, to tell you that the vacuum cleaner is full of dust and it's time to empty it. Here's a text explaining 'positive agitation': https://vdta.com/Magazines/SEP10/fc-GaskoSep10.html. It appears to be a term specific to vacuum cleaner design.

13 janvier 2016

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