- Joined
- Oct 25, 2019
- Messages
- 69
- Reaction score
- 30
I just tried calibrating a new KHD probe I received today using the phone app, like I have always used, and am getting similar high readings for both the PH4 fluid, 65256, and the PH7 fluid, 65257. I rinsed the probe in RODI water and wiped it off before putting it in the calibration fluid. I am thinking the probe is defective or I am doing something really incorrect. The probe does say KHD on the probe. My KHD director has been down all week. Very frustrating!