Fluorescence dissolved oxygen analyzer (hereinafter referred to as the instrument) is an online water quality monitoring instrument with a microprocessor. Widely used in industrial water, domestic water and sewage treatment, as well as animal husbandry. Continuous monitoring and control of oxygen content in aqueous solutions. The instrument adopts LCD liquid crystal display screen; Intelligent Chinese menu operation; Equipped with current or voltage output, freely adjustable measurement range, high and low limit alarm prompts, and two sets of relay control switches, with adjustable hysteresis range; Automatic or manual temperature compensation, electrode automatic calibration.

The sensor cover at the front end of the electrode is covered with a layer of fluorescent material. The blue light emitted by the LED light source shines on the fluorescent material, which is excited and emits red light. Due to the quenching effect, oxygen molecules can take away energy, so the time and intensity of exciting red light are inversely proportional to the concentration of oxygen molecules. Using a red light source synchronized with blue light as a reference, measure the phase difference between the excited red light and the reference light, and compare it with the internal calibration value to calculate the concentration of oxygen molecules. After some processing, output dissolved oxygen.

Intelligence: Using a single-chip microprocessor to complete dissolved oxygen value measurement, temperature measurement, and compensation;

Human computer dialogue: The menu operation is simple, and users can operate it by following the prompts on the screen;

Multi parameter display on the same screen: simultaneously display dissolved oxygen value, temperature value, and working status;

Software setting output mode: The software selects 0-10mA or 4-20mA output;

The measurement range and alarm upper and lower limits can be freely set;

Alarm prompt for upper and lower limit exceeding limits;

Two sets of relay control, with adjustable hysteresis control range;

Self setting password and service guide: Users can set or modify their own password to prevent unauthorized personnel from entering and causing misoperation;

Provide technical support and after-sales service contact methods for users;

Chinese and English menus are optional;

Capable of installing independent storage cards with data recording, storage, and export functions.