PH calibration help.

Taco740

Taco740

Active Member
Hey everyone. First time grower here. I bought a PH meter and some calibration solution, the problem is the solution is 7.0 and when I go to calibrate my pen it flashes 6.86. Can I calibrate my pen with the solution or do I have to order some different solution or pen? Any help and advice would be greatly appreciated. Thanks.
 
HydroRed

HydroRed

Well-Known Member
Taco740 said:
Hey everyone. First time grower here. I bought a PH meter and some calibration solution, the problem is the solution is 7.0 and when I go to calibrate my pen it flashes 6.86. Can I calibrate my pen with the solution or do I have to order some different solution or pen? Any help and advice would be greatly appreciated. Thanks.
Click to expand...
What kind of ph meter is it? 7.0 & 4.0 is usually standard in calibrations for most manufacturers.
 
HydroRed

HydroRed

Well-Known Member
Cant say I've heard of it, but you should be able to calibrate to a standard 7.0 calibration solution if it has a calibration function built into the tester.
 
SoOLED

SoOLED

Well-Known Member
you cant use tap water, it has to be deionized water; if your are using the packets.

also your local hydro store might do it for free.
 
Xs121

Xs121

Well-Known Member
Taco740 said:
Hey everyone. First time grower here. I bought a PH meter and some calibration solution, the problem is the solution is 7.0 and when I go to calibrate my pen it flashes 6.86. Can I calibrate my pen with the solution or do I have to order some different solution or pen? Any help and advice would be greatly appreciated. Thanks.
Click to expand...
The solution is is ph 7, your pen has an accuracy of +-.2 or most ph pen do (mine is +- .1). So, if yours is reading 6.86, that's good, it doesnt have to read 7
 
Taco740

Taco740

Active Member
HydroRed said:
Cant say I've heard of it, but you should be able to calibrate to a standard 7.0 calibration solution if it has a calibration function built into the tester.
Click to expand...
When I press the calibration button it flashes 6.86 and 4.01. It doesn't flash 7.0 at all
 
Taco740

Taco740

Active Member
Xs121 said:
The solution is is ph 7, your pen has an accuracy of +-.2 or most ph pen do (mine is +- .1). So, if yours is reading 6.86, that's good, it doesnt have to read 7
Click to expand...
So I can calibrate it with 7.0 solution and it will be ok if it's 0.14 off?
 
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