Apex EL ph probe calibration for 4.0?

[authentic]

trying to calibrate ph probe in my calrx....i see and did 7.0 and 10.0 but i want to calibrate for 4.0

 

[GoVols]

trying to calibrate ph probe in my calrx....i see and did 7.0 and 10.0 but i want to calibrate for 4.0

I'm still on Apex Classic / with the separate led screen
On classic you have to choose 4 first, then 7 shows up to calibrate for a cal reactor.

#reefsquad

How do you calibrate a ph probe to 4 and 7 solutions, with Apex 2016 or above?

Thank you

 

[Flippers4pups]

@DarthSimon?

 

[GoVols]

@mitch91175

If you don't mind:

How to you calibrate your ph probe to 4 and 7 solutions, with Apex 2016 or above?

Thanks

 

[mitch91175]

@mitch91175

If you don't mind:

How to you calibrate your ph probe to 4 and 7 solutions, with Apex 2016 or above?

Thanks

Don’t recall the exact step but here are the PM1 instructions