Calibrating pH controller

[Aram]

Does anyone know when you calibrate pH meter with calibrating solution from 4-7pH is it still going to display correct reading when pH need to be at 8.1?

Controller Milwaukee SMS122.
Professional pH Controller - SMS122 : Milwaukee Instruments

Thanks
Aram

 

[redfishbluefish]

The calibration solutions need to capture the pH range you wish to measure. Therefore, if you wish to measure a pH in the 8 pH range, you need to use calibration solutions of 7 and 10 calibration solutions. Hope this helps.

 

[Aram]

Thanks!
I never seen 10 Calibration solution, found online ordered.