How important is EMF shielding for the Aquastream?

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BetterRed

Junior Member

How important is EMF shielding for the Aquastream?

Tuesday, February 5th 2008, 3:51pm

The AC FMJ-case is mentioned in the pump section:

Since the motors of the radial pumps emit a magnetic field, we recommend the application of our FMJ-casing. The casing protects the harddrive disks and data lines from the irradiation of electromagnetic fields.

A search of the AC site does not give much more for 'FMJ' - and they are not available at the danish reseller afaik. Anyway, if the case is not safety grounded, how much shielding will the FMJ actually provide?

pharao

Moderator

Re: How important is EMF shielding for the Aquastr

Tuesday, February 5th 2008, 5:22pm

the FMJ is discontuniued, since there was no provable incidents, when the magntetic field ever disturbed a HDD.
using the FMJ in comination with a pump that has a fixed blade wheel (e.g. all Aquastream pumps) might even prevent the pump fron starting alltogether. if you use a eheim 1046 or 1048 with a loose blade wheel you can use a FMJ.

- and btw the magnetic field has nothing to do with the grounding of your case

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