Do you need to calibrate pH meter with pH10?

[The123321]

I am looking at the apera ph20 ph meter. It has 4 and 7 with it to calibrate with. I am looking at buying 3m kcl storage solution for it. Do I need to buy some of the 10 to do 3 point calibrate or is 4 and 7 enough on there?

 

[Dwight Monk]

Never heard of calibrating it to a 10, so unless their directions say something different most call for the 4 and 7.

 

[Sask420grow]

Ha. Weird how we both have ph pen calibration question nearly at the same time hahaha

 

[The123321]

Thanks.

 

[Apoc]

Put your solution in a tight sealed container like a mason jar that way you can reuse it to calibrate.

4 and 7 is good your water pH is between those.

 

[bluter]

I am looking at the apera ph20 ph meter. It has 4 and 7 with it to calibrate with. I am looking at buying 3m kcl storage solution for it. Do I need to buy some of the 10 to do 3 point calibrate or is 4 and 7 enough on there?

it only needs 2 point calibration once it leaves factory. you can buy the extra solution if you want to do 3 point.

 

[Homer Simpson]

I don't bother checking Ph. For me, adjusting created problems.

 

[The123321]

Thanks. I think I will do it with the 4 and 7 on there.