pH meter SSLLOOWW..

[smikes]

The longer I leave the meter in a solution, it continues to change. I get a change every 3 seconds or so. I have to give it at least 5 minutes to insure a stable-ish reading. I have the Hanna Checker.Less than 6 months old to me., The 4.01 buffer checks out alot quicker than the 7.01. TA testing is a pain with the slow rise of numbers.






Any ideas? Bad battery? Probe???

 

[grapeman]

The ultra slow response is an indication that the probe is dirty or bad. You mention it is only 6 months old to you- did you buy it new or used? Most probes let you change the probe so it doesn't need replacing the whole meter.

 

[smikes]

Thanks for the responce Appleman!


It is brand new, but mabey it sat on a shelf for a long time before I bought it?


I do not have a cleaning solution, I try to rinse it quickly with tap water,followed by a rinse in distilled water, followed by a rinse in 7.01 buffer then store it in the 7.01.


I have noticed that when I check calibration before I use it , I always need to adjust. It is closer on the 4.01 side then on the 7.01 .


Am I messing it up, or may the probe have been going bad before I bought it?

 

[grapeman]

Give the manufacturer an e-mail and ask about it. I don't know about that model.

 

[smurfe]

I found that on mine the probe would dry out during storage and do the same. It says to put a drop of solution in the cap for storage but it would dry out and cause the same symptoms. I finally just quit using it and went to the Accu-Vin kits.

 

[smikes]

As an update. I did contact Hanna about this and told them I boughttheir meter through another retailer and told them the problems I was having. They said they were going to give me a replacement probe since it was so new.

 

[Tnuscan]

I found that on mine the probe would dry out during storage and do the same. It says to put a drop of solution in the cap for storage but it would dry out and cause the same symptoms. I finally just quit using it and went to the Accu-Vin kits.

Are you still using the Accu-Vin Kits?

 

[Arne]

@Tnuscan. You probably arn't going to get an answer. This thread is from 2009, only one I have seen on here for a loooong time is Grapeman. Arne.