Ph meter ?

[dman1234]

Can anyone explain this?

I have two PH meters, when i put them both in Calibration fluid #7 they both read 7 on the dot, when i put them in a cup of water they read a full point different, one says around 6.5 and the other 7.4.

Whats with that??

 

[Locked]

That is weird.....how old are the meters?

 

[dman1234]

One is about 2 yrs old the other about a year.

 

[4u2sm0ke]

and are they the same meter? or diffrent manufacture?

 

[dman1234]

they are different, one is Hanna and i dont know the other

 

[4u2sm0ke]

this could be why..I had a Hanna then Baught a millwakee both read diffrent...Just my thaughts


take care and be safe

:48:

 

[Ruffy]

check battery, then wash the meter well. might have junk dried on sensor.

 

[dman1234]

check battery, then wash the meter well. might have junk dried on sensor.

BATTERIES, BATTERIES, Duh, why didnt i think of that, definetly worth a shot, i will try it.

Thanks Ruffy

 

[4u2sm0ke]

:giggle: I think i spent more on new Batteries then I did the meter:doh:

 

[dman1234]

:giggle: I think i spent more on new Batteries then I did the meter:doh:

Well im just looking at the batteries now, and i think i am about to find out what you mean.

 

[Locked]

Well im just looking at the batteries now, and i think i am about to find out what you mean.

Yeah that is why last time I spent the money and got a meter and not a pen... The meter I got has a detachable probe so you can replace it and takes one 9 volt battery which does not cost an arm and a leg.

 

[pawpaw]

Yeah that is why last time I spent the money and got a meter and not a pen... The meter I got has a detachable probe so you can replace it and takes one 9 volt battery which does not cost an arm and a leg.

I agree, I have a Hanna HI9813-6 and likeit a lot. It's the third digital pH meter I've had in 20 years. They keep getting cheaper and better. The probes for all suchmeters are fragile and expensive. The probe for this Hanna costs ~$90.00 It's crucially important to follow all the cleaning andstorage instructions to the letter and use the recommended storagesolution. The only thing that griped me about the Hanna is that itships w/o storage solution so you need to order some soon after youget one.