Begruntled
Active Member
I have Milwaukee MW-102 pH/Temp meter. While in storage solution, the probe reads roughly 5.00 to 5.40, drifts maybe 0.01. When I put in my water / fertilizer solution, it jumps to over 7, then settles down and the hour glass goes away. Then, it will slowly begin to rise, maybe 0.01 every 10 seconds or so. It might increase an entire digit or more. For example, if it settles at 5.60, it will sit there for a minute maybe, then start creeping higher. After a while goes by, it might read 6.80!
I've recalibrated the meter several times using 7.01 pH and 4.01 pH, but it still does the same thing.
What is going on? Which value do I believe? Have I somehow damaged my probe?
Thanks for any tips in advance.
I've recalibrated the meter several times using 7.01 pH and 4.01 pH, but it still does the same thing.
What is going on? Which value do I believe? Have I somehow damaged my probe?
Thanks for any tips in advance.