Titration & electrochemistry
Dissolved Oxygen Meter
Measures the amount of oxygen dissolved in a liquid using an electrochemical or optical (luminescence) sensor. Used for water systems, fermentation, nitrogen-purged formulations and environmental testing.
- Pharmaceutical
- Biotech
- Environmental
- Food & beverage
- Aquaculture
- Power generation
PREVENTIVE MAINTENANCE
Maintenance checklist
Daily / each use
- Air calibration or calibration check
- Inspect membrane or sensor cap
- Rinse after use
Monthly
- Zero check in oxygen-free solution
- Clean the membrane or sensor cap gently
- Check the temperature reading against a reference thermometer
As needed / annual
- Replace membrane and electrolyte (electrochemical)
- Replace the optical sensor cap at the interval given by the supplier
- Service and calibration of the meter
SAFETY
Safety precautions
Before you work on the DO meter
- Sodium sulphite zero solutions are mild irritants: wear gloves and eye protection.
- Electrolyte solutions for electrochemical probes may be alkaline: avoid skin contact.
- Keep meters away from flammable gases unless rated for such areas.
In LimsPulse · Calibration Management
Keep every DO meter in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.