Info on pH digital tester
I saw a lot of questions regarding the digital pH tester so I thought I would write everything I know about mine here and anyone else is welcome to add to it.:prof:
Checker by Hanna
When you first get it, you have to connect the electrode to the meter (very easy, you just screw the two parts together).
The electrode is dry, so remove the Hanna's cap and condition the electrode by soaking the tip in pH7.01 buffer solution for a few hours. (Pour some solution in a cup and just let it sit for several hours).
Now you're ready to calibrate it.
remove the Hanna cap and dip it in pH7.01 solution and wait until the reading stabilizes. It should say 7.01. If not, then use a small screwdriver and adjust the pH trimmer on top until it reads 7.01 (I always pour a small amount of buffer solution in the lid of the solution then discard when done as to not contaminate).
Now, do the same for 4.01 or 10.01 buffer and calibrate to get the right reading. I calibrate once a week.
When you order your Hanna, it may come with little packets of solution but I recommend buying a bottle of 7.01 AND 4.01 (or 10.01). They aren't expensive and will last you forever. I always pour a small amount into the bottle cap then discard so the pH doesn't change over time.
When done, rinse the tip under running water or you can buy cleaning solution. Also, put a few drops of storage solution in the lid of you Hanna to keep the electrode moist.
Hope this helps, feel free to ask if you have questions. I'm not the best at typing while multitasking with the kids:bigsmile:
