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The DUC2-DO dissolved oxygen controller independently developed and produced by Daruifuno can be connected with an optical dissolved oxygen sensor to realize continuous monitoring of the dissolved oxygen value of water quality. In addition to having 2 relays, RS485 interface, time and historical data functions, the dissolved oxygen controller has two 4-20mA current outputs. This enables the ability to control oxygenation using a dissolved oxygen controller. First use a dissolved oxygen sensor to measure the level of dissolved oxygen, convert the value into an electrical signal, the controller receives the electrical signal, and can display the dissolved oxygen value on the screen. Customers can connect the line of the oxygenation pump or aerator to the 4-20mA current output terminal of the controller, and then set the target dissolved oxygen value corresponding to the current output on the controller. In this way, the dissolved oxygen controller will adjust the output signal to control the current of the oxygenation equipment according to the difference between the measured value and the target value, and control the dissolved oxygen value of the solution within a certain range. This is more widely used in aquaculture and sewage treatment.
Features
3.2-inch LCD display, displaying rich data
2 configurable relays
2 channels of 4-20mA current can be used for high-precision oxygen control
Time and historical data recording function, can record 10000 data
AC or DC optional, both are wide voltage power supply
Specification
| Product Name | Dissolved Oxygen Meter |
| Product Model | DUC2-DO |
| Display Range | DO: 0-20mg/L (or ppm), unit can be switched |
| Display Range | Saturation: 0-400% |
| Display Range | TEMP: -10～500℃ /14~932℉ |
| Resolution | 0.01mg/L 1% 0.1℃/0.1℉ |
| Relay Control | 2 settable SPST relays |
| Analog Current Output | 2 settable 0/4~20mA |
| Communication Method | RS485 interface; MODBUS RTU |
| Display Screen | 128*64 3.2 inch LCD |
| Time/Data Record | Record 10000 historical data |
| Maintenance Records | Last 100 |
| Operating Temperature | 0～60℃，RH<95% |
| Storage Temperature | -20～70℃, RH<55% |
| Shell Material | Enhanced ABS |
| Protection Grade | IP66 |
| Dimension | 144*144*120mm |
| Mounting Method | Wall mounting, pipe clamping, panel (hole size 138*138 mm) |
| Power Supply | 100~240V AC or 18~36V DC, 50/60Hz |
| Power Consumption | 7W |
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