Troubleshooting Automatic pH Probe Calibration: A Client-Advisor Dialogue

Client:
Yes, I have an issue with the automatic pH probe calibration

Technical Advisor:
Hello, what seems to be the problem?

Client:
I have tried to calibrate two pH probes on a phileo lt using buffer value 7 or 9 but none of them give me the correct result

Technical Advisor:
Try this quick test: https://ph-redox-pool.com/gb/content/16-ma-sonde-ph-est-elle-hors-service- and then give me the result

Client:
I was just reading that

Technical Advisor:
https://ph-redox-pool.com/gb/ccei/50-pH-Probe-for-PHILEO-LT.html

Technical Advisor:
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