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HFOV circuits, have they changed?
#66348 26/11/13 4:07 PM
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Moira Offline OP
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Over the last few months we seem to have more problems with getting 3100A oscillator vent circuits leak-tight on set up. I think the plastic seems a bit floppier, and the diaphragms less tight fitting too. We end up throwing circuits away and starting fresh sometimes - an expensive hobby.

I've emailed Aquilent (was UDM; was Carefusion: was Viasys...) but had no response of any kind - not even 'no-one but you has a problem'.

Anyone else noticing this?

Re: HFOV circuits, have they changed?
Moira #66357 27/11/13 2:09 PM
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I have seen a couple like this, but it seems to be the diaphragms that cause the issue. A quick look and adjustment of them solves the issues. But at the high cost of the circuit it is not acceptable, have you checked if they are in the same batches?

Re: HFOV circuits, have they changed?
Darkmarker #66613 13/01/14 5:41 PM
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Moira Offline OP
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No, they're not; and it's not just diaphragms.

On the bright side, I've had a response now, they're coming in for a Chat.

Last edited by Moira; 13/01/14 5:41 PM.
Re: HFOV circuits, have they changed?
Moira #66620 14/01/14 3:41 PM
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CareFusion do have an issue with their cap diaphragms for the 3100s. There was an alert issued last April but the problem not only hasn't gone away but appears to be worsening.
We're waiting for an official response and explanation on the obvious QA problems with the manufacture/assembley of these components.


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