Dissolved Oxygen Analyzers Dissolved oxygen (DO) is a liquid process measurement for determining the amount of oxygen dissolved or carried in the process liquid. There are three common technologies for dissolved oxygen measurements: polographic, galvanic and optical.
It is a measuring instrument designed to continuously measure the dissolved oxygen concentration of condensate and feed-water used in boiler plants. Since dissolved oxygen is a major factor in corrosion or scale, it must be monitored continuously.
Dissolved oxygen (DO) is a liquid process measurement for determining the amount of oxygen dissolved or carried in the process liquid. There are three common technologies for dissolved oxygen measurements: polographic, galvanic and optical. The standard units of measure are milligrams per liter (mg/l), parts per million (ppm), parts per billion (ppb), or % saturation.
Controller | |
measurement type | Dissolved oxygen, saturation, oxygen partial pressure |
Measuring range | 0 - 20mg/L,0.00 to 20.00 ppm,0 - 200%,0 - 400hPa |
Resolution | 0.01mg/L,0.1%,1hPa |
Accuracy | ±1.5%FS |
Temperature measurement type | NTC 10K/PT1000 |
Auto A/manual H Measuring range | -10 - 60℃ Resolution: 0.1℃ Correction |
accuracy: ±0.5℃ | |
Output type | 4 - 20mA current transmission output |
Max.loop resistance | 750Ω |
Accuracy | 0.1%FS |
Output type | RS485 digital signal output |
Communication protocol | Standard MODBUS-RTU (customizable) |
Power supply | AC220V±10%,50Hz/60Hz (optional 24V±10%) |
Response time | 90% of the value in less than 60 seconds |
Sensor | |
Dimensions | Diameter : 25 mm ; length : 146 mm |
Weight | Stainless steel version 450g (sensor + cable 3 m) |
Titanium version 300 g (sensor + cable 3 m) | |
Material | Stainless steel 316L, New : body in Titanium |
Maximum pressure | 5 bars |
Protection | IP68 |
Stocking temperature | - 10°C to + 60°C |
Signal interface | Modbus RS-485 (standard) and SDI-12 (option) |
Sensor power-supply | 5 to 12 volts |
Consumption | Standby 25 µA |
Average RS485 (1 measure/ seconde) : 4.4 mA | |
Average SDI12 (1 measure/ seconde) : 7.3 mA | |
Current pulse : 100 mA |
-Manuals
Dissolved Oxygen Analyzers
-Data sheet
Dissolved Oxygen Analy zersprovide reliable measurements for municipal and industrial applications, including harsh environments such as chemical plants or challenging nuclear power applications.