Search found 12 matches

by cornz
Tue Nov 02, 2010 12:55 pm
Forum: Parallel Port Products
Topic: PH probe STILL wrong
Replies: 7
Views: 6075

Re: PH probe STILL wrong

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...
by cornz
Mon Oct 18, 2010 11:49 am
Forum: Parallel Port Products
Topic: PH probe STILL wrong
Replies: 7
Views: 6075

Re: PH probe STILL wrong

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

Thanks..
by cornz
Fri Oct 15, 2010 4:34 pm
Forum: Parallel Port Products
Topic: PH probe STILL wrong
Replies: 7
Views: 6075

Re: PH probe STILL wrong

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 ...
by cornz
Wed Oct 13, 2010 8:03 pm
Forum: Parallel Port Products
Topic: PH probe STILL wrong
Replies: 7
Views: 6075

Re: PH probe STILL wrong

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...
by cornz
Tue Oct 12, 2010 8:17 pm
Forum: PicoScope 5
Topic: WANTED: Old version of picoscope /pico log
Replies: 1
Views: 5524

WANTED: Old version of picoscope /pico log

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.
by cornz
Wed Oct 06, 2010 8:49 pm
Forum: Parallel Port Products
Topic: PH probe STILL wrong
Replies: 7
Views: 6075

PH probe STILL wrong

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...
by cornz
Wed Oct 06, 2010 8:31 pm
Forum: Parallel Port Products
Topic: DrDaq/pico log latest
Replies: 2
Views: 3624

Re: DrDaq/pico log latest

seems the new version wont run on windows 2000.
by cornz
Wed Oct 06, 2010 8:01 pm
Forum: Parallel Port Products
Topic: DrDaq/pico log latest
Replies: 2
Views: 3624

DrDaq/pico log latest

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...
by cornz
Tue Jun 16, 2009 9:48 am
Forum: Parallel Port Products
Topic: dr daq ph probe issue
Replies: 4
Views: 3587

Email sent.
Thanks..
by cornz
Wed Jun 10, 2009 11:48 am
Forum: Parallel Port Products
Topic: dr daq ph probe issue
Replies: 4
Views: 3587

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
by cornz
Tue Jun 09, 2009 6:15 pm
Forum: Parallel Port Products
Topic: dr daq ph probe issue
Replies: 4
Views: 3587

dr daq ph probe issue

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...
by cornz
Mon Mar 16, 2009 8:27 am
Forum: Parallel Port Products
Topic: Philips humidy sensor help please on DrDAQ
Replies: 1
Views: 2166

Philips humidy sensor help please on DrDAQ

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 ...