Confused on how to use PH meter?

[megan23247]

Ok this may be a stupid question but I just got my Electronic PH tester and It says I need to calibrate it first by dipping the sensor into the selected Buffer and when I get the right PH then hit CAL etc... Well my question is what do I use as a buffer just water mixed with either PH up or PH down to CAL the right buffer which has to either be a 4, 7 or a 10? Im confused. Hope that makes sense.

 

[slowmo77]

you need to find something that you know the ph of to calibrate it. im not sure what that would be. sorry i couldn't help more

 

[megan23247]

Maybe this will help. Here is a picture of the kind of meter I got maybe someone else has the same one and can help me out.

 

[growboy19]

this is just a shot in the dark, but maybe use something like lemon juice which will probably have a pH of something around 3-4. if thats around the reading you get its probably good to go. hope that helps alittle..if at all.

 

[massproducer]

you need to buy some buffer/calibration solution. When you calibrate your meter you need to use a solution because your meter will only be as accurate as your burrer solution.

Go back to the place you bought your meter and buy some buffer solution, you need 4, 7 or 10 but it is best to have all three

 

[King Bud]

I'm sure if you ask kindly, they will calibrate it for you, and you can skip buying anything.

If you do buy calibration solution, I recommend the pH 4, and pH 7. I have the same meter, and it's recommended to dip the tip in pH 4 solution when storing it.

Calibrating it using the pH 7 solution will make it more accurate around pH 7 (which is closer to where you will be using it, than the pH 4 or 10).

 

[rb2006]

Hum sorry im no help but I think its wierd that it isn't sol already calibrated. I guess i know when i buy an electronical one Good post and good question!!

 

[TURKEYNECK]

It shouldve came with a small pack of buffer solution, but MassP is 100% correct. get the buffer.