Products Description
The dissolved oxygen analyzer for water quality is a detection device suitable for industrial wastewater, aquaculture, river monitoring, swimming venues and other fields. Coupled with fast color detection reagents, the dissolved oxygen analyzer for water quality can measure quickly, simply, accurately, and stably. It has a beautiful appearance, a simple operating interface, and an accurate detection system, helping users obtain precise data and analyze water conditions more accurately and effectively. The dissolved oxygen detector for water quality is suitable for purified water plants, water treatment plants, domestic sewage treatment plants, industrial wastewater, aquaculture, river monitoring, swimming venues, water source protection, production monitoring, scientific research experiments, etc.
Working Principle
The use of fluorescence method in water quality dissolved oxygen analyzer is based on the quenching principle of specific substances in physics for active fluorescence. The modulated green light illuminates the fluorescent substance to excite it and emit red light. Due to the quenching effect of oxygen molecules, the time and intensity of exciting red light are inversely proportional to the concentration of oxygen molecules. We used a red light source synchronized with green light as a reference, measured the phase difference between the excited red light and the reference light, and compared it with the internal calibration value to calculate the concentration of oxygen molecules. After temperature compensation, the final value was output. Adopting the principle of quenching, it has low maintenance, does not consume oxygen, does not require flow rate and agitation, is not affected by chemical substances such as sulfides, and has high resolution and measurement accuracy.
Technical Parameters
| Intelligence | Using a single chip microprocessor to complete dissolved oxygen value measurement, temperature measurement, and compensation; | Software setting output method | The software selects 0-10mA, 4-20mA, or 20-4mA for output; Free setting of measurement range and alarm upper and lower limits; Upper and lower limit exceeding alarm prompt; Three sets of relay control switches, with adjustable hysteresis control range; |
| Human machine dialogue | menu operation structure, users can operate according to the prompts on the screen; | Self set password | Users can set or modify their own password to prevent unauthorized personnel from entering and causing misoperation; |
| Multi parameter display on the same screen | simultaneously displaying dissolved oxygen value, temperature value, and working status; |
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