PI OxySense DO analyser range of online Dissolved Oxygen Meters utilises the very latest and best optical sensor available in the world today. It is an optical luminescent device which is extremely resistant to abrasion, extremely stable, and has greatly reduced maintenance and whole life costs. Coupled with the automatic self cleaning and self verification, the OxySense online DO analyser is as close to ‘fit and forget’ as it gets.
The OxySense Online Optical Dissolved Oxygen Analyser with self-cleaning and self-verification offers enhanced reliability and unrivalled low maintenance.
Optical DO meters have largely replaced electrochemical DO sensors (Clark Cells) due to their better reliability and lower maintenance requirements.
The OxySense DO sensor is available with different controllers giving you the same great performance with different communication, display, and control options.
Features
- Down to zero maintenance
- No chemicals reagents or moving parts – or reducing maintenance
- Integrated self-cleaning
- Integrated self-verification
- Up to 36 months between cap changes
- No initial calibration required
- Calibration only once per year
- Reproducible DO readings between sensors
- Proven reliability
Applications
- Aeration Tank for WWTP
- SBR Tank for WWTP
- Dissolved Oxygen Monitoring Application
Technical Specifications
| Type | Lumiphore Optical Dissolved Oxygen |
| Measure Parameter | Dissolved Oxygen |
| Range | 0-50mg/l or 0-500% Saturation |
| Resolution | 0.01mg/l |
| Accuracy and Precision | ±0.1mg/L (0-15mg/l), ±3% of reading (15-30mg/l) ±5% of reading (30-50mg/l) |
| Temperature Range | > 0 up to 50°C |
| pH Range | pH 2 ~ pH10 |
| Salinity Range | 0 ~ 55ppt |
| Temperature Compensation | Automatically by an integrated thermistor |
| Permissible Over Pressure | 10 bar |
| Typical Response Limited | 0-50mg/l |
| Response Time | T90<65s at 25°C |
| Zero Point Adjustment | Not necessary |
| Calibration | Manual using water saturated air |
| Response Check | Automatic with optional Autoclean |
| Material of Construction | Stainless steel |
| Dimensions | Diameter approx. 38mm OD, length 259mm |
| Maintenance intervals | Manual calibration 3-24 months, lumiphore change 24 months |
| Warranty | 12 months from date of first use |
| Interferences | Alcohols >5%, hydrogen peroxide >3%, sodium hypochlorite >3%, gaseous sulphur dioxide and gaseous chlorine |