DNA oxygen % falls in time
Troubleshooting unstable oxygen value when measuring Nitrox with DNA
Possible causes:
- Too high flow
- Depleted O2 sensor
- Out-of-date DivesoftApp
Step-by-step troubleshooting:
- DNA is accurate from the lowest flow, so try to open your valve as little as possible. Or do not press DNA tightly against valve, angle it a bit to let some mix escape around the DNA.
- Try exchanging or replacing the oxygen sensor, always replace if older than 5 years or voltage in ambient air is less than 6 mV.
- Check in the AppStore or Google Play whether there is no DivesoftApp update available.