pH meter calibration problem

[Boris Sputnik]

Hi there !
Broke my pH meter and ordered a new one . Problem is it calibrates at 4 ,6.86 ,9.18 and I only have a pH7 valibration solution . It calibrates to 6.86 by the push of a button when the pen is in a solution of the same pH ( 6.86 ) . Knowing that when calibrated at 6,86 it really is at 7 ,can I take readings and add 1.4 to get the correct pH ?
Thank you !

Boris

 

[HydroRed]

Hi there !
Broke my pH meter and ordered a new one . Problem is it calibrates at 4 ,6.86 ,9.18 and I only have a pH7 valibration solution . It calibrates to 6.86 by the push of a button when the pen is in a solution of the same pH ( 6.86 ) . Knowing that when calibrated at 6,86 it really is at 7 ,can I take readings and add 1.4 to get the correct pH ?
Thank you !

Boris

I've never seen a pH tester that calibrates at those numbers? They are generally 4.0 or 7.0 from most manufacturers.
I dont think a difference of .14 (not 1.4 haha) is going to throw off your tests much at all. Close enough to give you a fairly accurate reading to gauge where you are at with ph in your res.
What brand of pen are you using?

 

[Boris Sputnik]

I've never seen a pH tester that calibrates at those numbers? They are generally 4.0 or 7.0 from most manufacturers.
I dont think a difference of .14 (not 1.4 haha) is going to throw off your tests much at all. Close enough to give you a fairly accurate reading to gauge where you are at with ph in your res.
What brand of pen are you using?

You are right .14 ,so you would go for it as is ? Thanks man

 

[HydroRed]

You are right .14 ,so you would go for it as is ? Thanks man

If it can tell you what 6.8 is when in 7.0 reliably all the time...yes I would.

 

[Boris Sputnik]

If it can tell you what 6.8 is when in 7.0 reliably all the time...yes I would.

Thanks man ,I'm trying it .