P4 conductivity probe read less every day..

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Originally Posted by decena

Hi, I think I've solved the problem.. I'm not sure, but in the las 24 hour the probe is reading the same. It doesn't read less every hour as before. I haven't changed the position of my probes, it's on the same place. But I have installed a new flow pump (small) "Sicce Voyager Nano 1000 l/h".The pump is at a distance of 20 cm. And the most important detail (I hope I can explain this correctly, I don't know much English):

- The flow is in the same direction as the probe slot. I attach an image, but if you have any doubt please ask me. In the next two days I am going to watch it to confirm if I'm right.

Attachment 9396

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I solved my problem in a similar way - I direct my main return flow from the display tank to hit the probe – it works great now for more than a month

Sincerely Lasse

I have done something different - I placed my probe so it sits in a 'upflow' section of my baffles so that water is constantly flowing vertically up into the bottom of the probe. Seems ok so far.

Five months later.. we are still waiting... GHL, any official solution?

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Originally Posted by decena

Five months later.. we are still waiting... GHL, any official solution?

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It has been solved for a while now. We asked every customer who had this problem to contact GHL DIRECTLY.

Please do this. If you already did you and we didn't reply I have to apologize, then your email maybe got lost. In this case contact us again, please.

I must have missed that. My soultion above just seems to slow the problem, so I've come back. What is the best email address to use please Matthias?

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Originally Posted by JayHoe

I must have missed that. My soultion above just seems to slow the problem, so I've come back. What is the best email address to use please Matthias?

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Hi Jay - have a look at this, was posted on one of the prior pages in this thread.

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Originally Posted by Matthias

the electronic circuit of the conductivity probe port is identical to the P3 and the expansion cards (there was no need to change a perfectly working system), I have problems to understand why the P4 should behave then different

but we are aware that here is a problem for some users and believe me, we want to solve this as soon as possible

we have to consider all possible options, even a bad batch of probes (although the manufacturer already said he doesn't believe this)

-> I think here helps only direct personal support


To all customers with this conductivity-issue

please contact us directly and let us go from there:

USA: info@ghlusa.com

all other regions: info@ghl-kl.de

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Many Thanks Marco!

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Originally Posted by Matthias

It has been solved for a while now. We asked every customer who had this problem to contact GHL DIRECTLY.

Please do this. If you already did you and we didn't reply I have to apologize, then your email maybe got lost. In this case contact us again, please.

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Thanks, I have already contacted.

I have already sent mail 3 months ago
I was told 2-3 weeks to resolve and I was not contacted anymore

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Originally Posted by Matthias

as soon as we have the final answer which works for everyone we will post it here

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Is there a solution to this please.