2
Chapter 2 Product Presentation
The
Sentinel (RS-485)
dissolved oxygen sensor uses advanced fluorescence quenching
technology. When the blue light emitted by the sensor illuminates the fluorescent substance on the
fluorescent cap, the fluorescent substance is excited to emit red light, and since the oxygen molecule
can carry away the energy (quenching effect), the time and intensity of the excited red light and the
concentration of the oxygen molecule become in inverse proportion, the concentration of dissolved
oxygen in water can be obtained by calculation.
This product is widely used in the DO online monitoring of the regulating tank, biochemical tank
and effluent of sewage treatment plant.DO online monitoring in waterworks, surface water, water used in
various industrial production processes, aquaculture and other industries. The sensor appearance is shown
in Figure 1. The sensor size is shown in Figure 2.
Figure 1 Appearance diagram of
Sentinel (RS-485)
Dissolved Oxygen Sensor
1- Fluorescent cap
2- Temperature Sensor
3- R1 thread
4- Protective cap
Note: When using the sensor, please pull out the sensor protective cap (Series No.4),
Fluorescent cap (Series No.1) is the important part for the measurement function of this sensor. Do
not spin down the fluorescent cap (Series No.1).
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+1 513 204 5837
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://www.
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Sentinel (RS-485) DO •
Operation Manual