iceprobe conflicting with Pinpoint pH

taekwondodo · 04/26/2006, 10:09 PM

When I plug in my iceprobe, my pinpoint pH meter goes nuts (readings sway all over the place, and I mean ALL over the place)... has anyone ever seen this happen before?

Thanks,

- Jeff

taekwondodo · 04/27/2006, 08:25 AM

anyone???

hmott · 04/27/2006, 09:00 AM

pH is very temperature related. Move them as far apart as you can. I don't use a pinpoint, and I've never seen one used. I bought a used scientific meter and it has a temp probe attached to it also. Does the pinpoint also havea temp probe? If so maybe you can just move the pH meters temp probe to a further location.

BLockamon · 04/27/2006, 03:56 PM

I would also wonder if it's EMF interference. pH doesn't change that much with temperature. If the readings change by more than 0.5-1.0 pH units, it probably isn't a local temperature drop.

However, the solution is the same; move the probe (and meter) as far from the iceprobe as possible. If that doesn't work, you could try a make-shift faraday cage by putting aluminum foil around the meter.

taekwondodo · 04/28/2006, 01:39 PM

I don't know how much further I can move the probe - the pH probe's now in the main tank and the iceprobe is still in the sump...

Tomzpc · 04/28/2006, 05:21 PM

Are you using the ac adaptor for the pinpoint? If so, switch to a battery and see if that fixes it.

04/26/2006, 10:09 PM	#1
taekwondodo Registered Member Join Date: Jun 2005 Location: gilroy, ca Posts: 105	iceprobe conflicting with Pinpoint pH When I plug in my iceprobe, my pinpoint pH meter goes nuts (readings sway all over the place, and I mean ALL over the place)... has anyone ever seen this happen before? Thanks, - Jeff

04/27/2006, 08:25 AM	#2
taekwondodo Registered Member Join Date: Jun 2005 Location: gilroy, ca Posts: 105	anyone???

04/27/2006, 09:00 AM	#3
hmott Registered Member Join Date: Apr 2004 Location: Belpre Ohio Posts: 470	pH is very temperature related. Move them as far apart as you can. I don't use a pinpoint, and I've never seen one used. I bought a used scientific meter and it has a temp probe attached to it also. Does the pinpoint also havea temp probe? If so maybe you can just move the pH meters temp probe to a further location.

04/27/2006, 03:56 PM	#4
BLockamon Registered Member Join Date: May 2005 Posts: 1,104	I would also wonder if it's EMF interference. pH doesn't change that much with temperature. If the readings change by more than 0.5-1.0 pH units, it probably isn't a local temperature drop. However, the solution is the same; move the probe (and meter) as far from the iceprobe as possible. If that doesn't work, you could try a make-shift faraday cage by putting aluminum foil around the meter.

04/28/2006, 01:39 PM	#5
taekwondodo Registered Member Join Date: Jun 2005 Location: gilroy, ca Posts: 105	I don't know how much further I can move the probe - the pH probe's now in the main tank and the iceprobe is still in the sump...

04/28/2006, 05:21 PM	#6
Tomzpc Registered Member Join Date: Feb 2003 Location: NY Posts: 1,738	Are you using the ac adaptor for the pinpoint? If so, switch to a battery and see if that fixes it.