Discussion Category:  Cell Counters

Beckman Coulter z1 Abnormal aperture flow rate

Hi everyone.

Dealing with: '' Abnormal aperture flow rate'' error message. nothing seems to be clogged. Meetering pump and control valve pass all the tests in the user testing menu.

Look like the pump is struggling to build a sufficient vaccum.

The instrument start the count and then: ''Abnormal aperture flow rate''

error message

 

Could it be that diaphragm inside the pump?

Beckman Coulter Part number ?

Thanks!

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Asked by

Nic
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avatar placemarkReply by
jamiepenn

Do a hot purge on the system!  Fill the entire system with warm bleach water (30%), let it sit for 30min, drain the system and refill with isoton.  The message should go away and the system should work fine for quite some time.

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