Dissolved Oxygen
Description
Versions
Downloads
Description
Optical sensor for dissolved oxygen.
Calibration-free measuring sensor for dissolved oxygen according to the luminance method. Digital value transmission to the controller. No interference by H2S, reducing or oxidizing substances. Evaluation via display unit. The dissolved oxygen sensor is available with a 10 m or a 2 m fixed cable.
Versions
Downloads
Benefits
- Low operation costs thanks to low maintenance (no electrolyte replacement)
- Larger calibration interval thanks to low deviations
- No polarisation voltage necessary
- Fast response time
Areas of application
- Measurement of dissolved oxygen in surface water, aquaculture, seawater and drinking water and wastewater plants
Parameters
- dissolved oxygen
- temperature
Request now
Do you need individual advice or are you interested in the dissolved oxygen sensor?
Technical Data
Technical Data
Technical Data
| Measurement principle | Luminescence | |
| Parameter | Dissolved Oxygen | |
| Measurement range | 0…20 mg/L | |
| 0…20 ppm | ||
| 0…200 % | ||
| Measurement accuracy | ± 0.1 mg/L | |
| ± 0.1 ppm | ||
| ± 1 % | ||
| Resolution | 0.01 | |
| Response time | 90 % of the value in less than 60 seconds | |
| Measurement interval | > 5 s | |
| Inflow Velocity | no movement necessary | |
| Temperature Compensation | Via NTC (compensation active for temperature lower than 0 °C) | |
| Resolution (temperature) | 0.01 °C | |
| Accuracy (temperature) | 0.5 °C | |
| Membrane Cap | No cross-sensitivity with : pH 1 – 14 ; CO2, H2S, SO2 | |
| Cross-sensitivity to Organic solvents, such as acetone, toluene, chloroform or methylene | ||
| chloride Chlorine gas | ||
| Material | Standard Version in passivated Stainless steel 316L body, strainer and screw, | |
| For Seawater application Version in Titanium body, strainer and screw, | ||
| Cable : polyurethane jacket | ||
| Steam gland : Polyamide | ||
| Patch with active material (black) – Membrane : Optical isolation silicon | ||
| Dimensions (L x Ø) | 146 mm x 25 mm | ~ 5.7˝ x 1˝ |
| Weight stainless steel | ~ 450 g | ~ 1 lbs |
| Weight titanium | ~ 300 g | ~ 0.7 lbs |
| Interface | RS-485 (Modbus RTU) | |
| Power consumption | 1 W | |
| Power supply | 12 V (± 10 %) | |
| Sensor cable | 2 m and 10 m | |
| Calibration/maintenance interval | 2 years | |
| Warranty | 1 Year (EU & US: 2 years) on electronics; All wearing parts are not included in the warranty | |
| Max. pressure | 5 bar | ~ 72.5 psig |
| Protection type | IP68 | NEMA 6P |
| Sample temperature | 0…+50 °C | ~ +32 °F… +122 °F |
| Ambient temperature | 0…+50 °C | ~ +32 °F… +122 °F |
| Storage temperature | -10…+60 °C | ~ +14 °F… +140 °F |
