Quote:
Originally posted by Dr_Pentium
is there a definate way i can chk if its my pump or my monitor ?
The pump does seem to be workin fine, no weird noise or anything, its silent
i've moved the pc about 2.5 feet away now its better. But still if its my pump at fault i would like to know.
Also does eheim offer some sort of warrenty ? just in cae you know.
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The problem is a combination of the pump and the monitor.
No pump - no problem.
No monitor - no problem.
In my experience, (and many others as well) Eheims produce much lower fields than other pumps. I frequently see comments saying Eheims are shielded. As far as I can tell, this is a myth. I suspect that Eheims tend to generate less field because they have a better arrangement of the magnets and coils that make up the mag drive itself. This is speculation on my part though. (I'd love to cut one open to see, so if you get really irritated with that pump...)
If my speculation is correct, then I wouldn't expect an eheim pump to be working correctly if it was generating more mag field than usual.
I doubt that exchanging the pump would get you one that generated less magnetic field. I'd be interested in knowing whether a different Eheim yielded different results though.
I think you probably have a monitor that is poorly shielded.
I did some testing of the tin can thing a while back. I was barely able to see any effect, with my Eheim 1250 against the screen. With a Danner Mag 5, there was an obvious effect with the pump one foot away from the screen. A coffee can slid over the Danner reduced the interference so that I had to move the can/pump within about 3 inches of the monitor to see the same effect as the unshielded Danner at 12 inches.