ArduinoGeneral

Error reading PH meter SEN0161

userHead Hendrik Alfendo 2016-08-03 20:37:39 2378 Views2 Replies
Hello, i bought pH meter last week. I connected to arduino uno. When i tried to measure ph in acid water ph < 5, in serial monitor showed value 6.8-7.0. Same with alkali water ph > 8. same value showed in serial monitor around 6.8-7.0. When i cleaned up the probe, ph meter still showed some value. Pls help me thx
2016-08-04 22:06:26 :shock: So it seems both the pH meter and the pcb adapter are defective if your wiring and code were all right. Looking forward your picture. userHeadPic Leff
2016-08-04 09:20:52 i did same with the guide nothing wrong with wiring and code. I did compare with my friends ph meter SEN0161. His sensor can get accurate value. once i get into my class, ill post my sensor pic here. oh also, i did plug my ph probe to my friend's adapter still got error value and i did to the adapter, plug friend's ph probe to my adapter and got error value too. userHeadPic Hendrik Alfendo