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RS485 MODBUS 용존 산소량 센서
(RS485 MODBUS Dissolved Oxygen Sensor)
개요
- 본 제품은 RS485 MODBUS 용존 산소량 센서 입니다.
- 용존 산소량의 변화를 측정하여 RS485 시리얼 신호로 출력하여 주는 제품입니다.
특징
- Measuring ranges: 0~20mg/L or 0-200% saturation
- Temperature compensation/salinity compensation: Makes the measurement more accurate
- No electrolyte storage, easy maintenance
- Fluorescence method principle
- No oxygen consumption
- Anti-interference: No interference from chemicals such as sulfides.
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Specification
Measurement Range
0～20.00mg/L(0～200% saturation，25℃)
Accuracy
±2%F.S.，±0.3℃
Resolution
0.01mg/L，0.1℃
Calibration
Two-point calibration
Temperature Compensation
Automatic temperature compensation (Pt1000)
Output
RS485(Modbus/RTU)
Working Conditions
0～50℃，<0.2MPa
Storage Temperature
-5～65℃
Material
PC, stainless steel
Cable Length
5 meters
Power Consumption
0.3W@12V
Power Supply
12～24VDC（@typical 12VDC）
IP Rating
IP68
Interface Description
PIN #
Color
Description
1
Red
Power Supply(12～24VDC)
2
Black
GND
3
Blue
RS485 +
4
Green
RS485 -
Dimension
문서
- Datasheet
- RS485 Modbus Dissolved Oxygen Sensor is based on the fluorescence quenching method, which can quickly measure dissolved oxygen in water, it has a built-in temperature sensor and salinity compensation to make the measurement more accurate. It has a long service life due to its unmatched chemical and abrasion resistance. And the sensor will not be affected by flow rate and chemical substances, resists interference from complex environments, and can be used in various scenarios such as aquaculture and wastewater treatment with simple deployment.
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This RS485 Dissolved Oxygen Sensor is used to determine changes in dissolved oxygen levels, one of the primary indicators of aquatic environment quality. Based on the fluorescence quenching method so it can eliminate the process-related drift and no polarization time which can fasten the response time, enabling us to measure dissolved oxygen faster and more accurately.
The fluorescence method for measuring dissolved oxygen is based on the principle of fluorescence quenching. Blue light is used to excite the fluorescent material, which emits red light. The concentration of oxygen molecules affects the time and intensity of the emitted red light due to the quenching effect. By measuring the phase difference between the excitation red light and the reference light and comparing it with an internal calibration value, the concentration of oxygen molecules can be calculated.
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