ph pen newbie

hey everyone i built a bubble cloner and got a ph pen its a HANNA HI 98129 jw what should i set the buffer at? i got 2 packs one is to cal the ph the other the ppm if i set it to whats on the packs will it still read a lower ph like say 5.5 or lower then 1500 ppm

The calibration is for the meter to confirm the probe is properly reading the solution. You should calibrate your meters every month to ensure accuracy. Once you use the solution, you toss it out. They sell bottles of it at the store for about 25 bucks. You will not technically set anything, have the probe soak in the solution for a few minutes until it has settled on a value, then follow the directions to calibrate it. The calibration will adjust the the meter to proper value if it is not reading the value indicated on the solution bottle. I'm not sure how you cap is, but i always leave a little solution in my cap so it is sitting in that while not in use.

While we on the subject,I bought the cheapest meters possible,didn't come with any fluid.
I've seen 2 different # on the bottle how do you know which 1 to get? Anything else that I need to know before I go to hydro store? This is pretty good. I was on my way to superstoner's thread to ask him,then I ran across this 1.lol

nameno said:

While we on the subject,I bought the cheapest meters possible,didn't come with any fluid.
I've seen 2 different # on the bottle how do you know which 1 to get? Anything else that I need to know before I go to hydro store? This is pretty good. I was on my way to superstoner's thread to ask him,then I ran across this 1.lol

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What type of meter? Ph or ppm?

If it's a combo, one is for ph and the other is for ppm

I got 2 seperate meters,but the understanding I have is it takes 1 name brand for 1 ph meter & a different 1 for a different name brand ph meter.Thanks