sdelli
Senior Member
- Joined
- Jan 9, 2013
- Messages
- 898
- Reaction score
- 277
So... I sent my unit in last September for not being able to calibrate..... They flashed it with an upgraded bios version. Now a few months later... It started to slow down on getting the ph numbers... I checked it against my other ph instrument. It was reading the ph at .20 higher! Almost added too much tartaric acid before I caught it. Sent it back again.... They tell me that now the newest bios version can be forced into a manual ph calibration! Hopefully this is the last time....
Sam
Sam