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Search took 0.01 seconds. Search: Posts made by: Arjan Bakker

Forum: Reefs

August 20th 06, 09:02 PM Posted to rec.aquaria.marine.reefs

Replies: 7

Dupla ph control HELP!

Views: 2,287

Posted By Arjan Bakker

Dupla ph control HELP!

ok you have a point there.
Tomorrow I will get some fluid with PH 9 or 10.
But it is still strange that I cannot calibrate a new probe,
to ph4 !!

I tried with an old probe, and I cannot get this one...

Forum: Reefs

August 20th 06, 08:02 PM Posted to rec.aquaria.marine.reefs

Replies: 7

Dupla ph control HELP!

Views: 2,287

Posted By Arjan Bakker

Dupla ph control HELP!

I don't think it matters,
in my opinion you calibrate the slope mv/ph.
If the ph value is below 7 the mv/ph is negative,
above 7 is positive. But the slope stays the same.
At least this is what I...

Forum: Reefs

August 20th 06, 01:40 PM Posted to rec.aquaria.marine.reefs

Replies: 7

Dupla ph control HELP!

Views: 2,287

Posted By Arjan Bakker

Dupla ph control HELP!

Hello,

I bought a second hand "Dupla ph Control" (old type),
ofcourse without a manual.

I think I figured out how this works,
but when I try calibrating with PH4 I cannot
get the PH control below...

Showing results 1 to 3 of 3

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