Optical Dissolved Oxygen Sensor DOS Series
- DOS-20[Checker][Parts No. 05160]
Easy Installation, Simple Operation. Maintenance long-term unnecessary.
Features
- Combination use with MLSS Analyzer for biological treatment or MBR process
- Robust Design -Inert ABS construction
- Long Term Stability -No Influence by water flow rate
Application
Installation
Installation example
* The PVC pipe VP-20 and a standard fitting to be prepared by the user.
Extension of sensor cable
The standard length of the sensor cable is 10 m. To extend the cable, refer to the following.
To extend the cable, connection using pull box is recommended.
・ The sensor cable must be shielded with a nominal cross-sectional area of 0.2 to 1.25 mm2.
Transmitter
Display item
Set measurement items to display as main, 2nd, and 3rd display of SC-U1.
Option
Replacement sensor cap: DOS-CP
[Parts No. 05161]
It is a consumable item that we will exchange for 1 year as a guide.
Specifications
Dimensions
| Model | DOS-20 |
|---|---|
| Measurement item | Dissolved Oxygen concentration (mg/L) Temperature (°C) Dissolved oxygen saturation (%) Oxygen Partial Pressure (kPa) |
| Measurement range(Display resolution) | Dissolved oxygen concentration: 0.00 – 50.00 mg/L (0.01 mg/L) Temperature: 0.0 – 50.0°C (0.1°C) Dissolved oxygen % saturation: 0.0 – 200.0 (0.1%) Oxygen partial pressure: 0.0 – 150.0 kPa (0.1 kPa) |
| Measurement resolution | ± 0.1 mg/L (0 – 8 mg/L) ± 0.2 mg/L (8 – 20 mg/L) ± 10% of reading (20 – 50 mg/L) |
| Response time | 90% response: < 45 seconds 95% response: < 60 seconds (Water temperature: 25°C) |
| Power supply voltage | 12 to 36 VDC |
| Current consumption | 25 mA max. (24 VDC) |
| Communications (function) | MODBUS (RTU/ASCII) |
| Operating temperature | 0 to 50°C (unfrozen) |
| Major material | ABS |
| Dimensions | Φ44 × 204 mm |
| Weight | Approx. 850 g (including cable length of 10 m) |
| Degree of protection | IP68, maximum depth of 200 meters (underwater type) |
| Sensor cable length | 10 m |
| Sensor cap replacement cycle | Every year after sensor installation (guideline) |
| Sensor cap storage period | 2 years after manufactured date (when stored in the specified container) Storage temperature: 1 to 60°C |
*Specifications are subject to change without prior notice.
Contact phone number
- Headquarters
- +81-77-579-8680
Contact form
Support information