OK, I'm in the process of testing this as we speak.. Only the Ph probe and a temp sensor next to the Ph probe plugged into ext1. Right, using PLW recorder, the Ph is all over the place, until i set the program "recording" then the Ph reads between 6.9-7.1 in tap water. Using my el-cheapo meter, it r...

Ah, thats fair point. I shall attempt this later...

Thanks..

I'ts really quiet important i get this working so decided to try a few other things. One of which was to run picoscope and lo-and-behold the Ph reading is now something like accurate. Its not perfect but Ph4 solution reads at 3.82 which is close enough. However, i dont really want to use pico scope ...

Sadly, doesnt seem to work, here are some results, using ph4 and ph7 test fluid. V5.16.2 Ok, without the scaling mod.. test ph7 reads 7.00 (SPOT on) test ph4 reads 7.23 tap water reads 7.06 WITH scaling mod.. test ph7 reads 7.00 (SPOT on) test ph4 reads 8.84 tap water reads 7.48 Seems incapable of r...

Wanted:Picolog
release R5.08.6
And:

picopp.sys 2002/07/31 => 2007/07/02 (R5.20.1)
DRDAQ32.DLL 2002/07/31 => 2008/05/02 (R5.20.1)

Does anyhave the above files??
Thanks.

OK, angry mode. I've just decided to give my DrDaq another go, as, after the fiasco i had last year with the Ph probe i gave up and bought a 10 quid ph probe. Well, its packed in so i decided to get the Drdaq out as my fish are important to me. the (replacement) ph probe was/is still in its little b...

seems the new version wont run on windows 2000.

Can anyone answer why, whenever i try to install the latest pico log, it installs, then rolls back saying the process was interrupted?? I dont touch anything, it just does. Its a FRESH windows 2000 install on an old P3 laptop, with a proper parallel port. I am an administrator, nothing else is runni...

Email sent.
Thanks..

Hi and thanks. I can assure you the probe has never dried out as it is fully submerged in water every minute of every day. Even when i clean my tropical fish tank the probe is removed and placed in its little bottle of water.
Andy

For the last couple of months ive had problems with the ph probe. Picolog is reporting a ph of between 7 and 7.5. I have used a ph calibration fluid (4 and 7) and the result is always the same. A ph of 7-7.5. I've cleaned the probe, reinstalled the software etc etc. If i short the contacts out on th...

Purchaased a DrDAQ and had a great deal off succes with the onboard and PH sensors but need a humidity sensor and, to be honest, cant afford the proper pico one. So....... Just purchased: http://www2.informatik.hu-berlin.de/~hochmuth/bvp/humidity.pdf Trouble is im not sure how i wire it, i'm pretty ...