Product Introduction
The detection principle of the Lyser series online biological toxicity analyzer is that when toxic and harmful substances come into contact with luminescent bacteria, the toxic substances in the water sample will affect the metabolism of the luminescent bacteria, weakening or extinguishing the luminescence intensity. The weakening of the luminescence intensity is directly proportional to the concentration of toxic substances in the water sample. It is mainly used for real-time monitoring of water sources and comprehensive toxicity monitoring of surface water quality.
Product Features
Vibrio Fischeri is not incubated and is stored in an independent constant-temperature incubator with automatically controlled culture conditions. After recovery It can be used immediately.
The adoption of a light-cutting mechanism ensures the consistency of the dual-channel light sources for the water sample and the control, thereby enhancing the reliability of the test results Sex. ;
The closed flow path system ensures that bacteria, salt water and water samples are not disturbed in any way, improving the reliability of the test results.
The chassis is equipped with an internal constant temperature system to ensure the temperature control of Vibrio fevibrio at each stage of the reaction, improve the accuracy of the test results, extend the reagent replacement cycle, and reduce maintenance.
Adaptive quantitative device, using the leading logic judgment method, enhances the liquid level judgment ability and improves the adaptability to complex water quality.
Dynamic simulation analysis flowchart, easy to maintain and understand;
The special structure and process effectively prevent the condensate water from the culture module from flowing back into the bacterial culture tank, thus extending the service life of the bacteria.
High-performance integrated touch screen, visual operation interface, clearer display, smoother operation and more stable operation;
Measurement principle: Vibrio Fischeri luminescence method
Measurement range: Relative luminescence 0-100% Toxicity grade
Detection accuracy: EC50Zn2+≤2.0mg/L (ZnSO4 is the standard sample)
Repeatability: ≤10.0%
Accuracy: ±10% for pure water; The actual water sample is ≤20%
Pure water light loss: ± 3%
Environmental temperature stability: ±5.0%
The operating temperature of bacteria: 20℃±2℃
Bacterial time: <5 minutes
Zero-point calibration: The instrument performs it automatically, once every maintenance cycle
Pipeline cleaning and disinfection: before and after each measurement
Communication port: RS-232 RS-485 RJ45
Measurement modes: Time interval, 24-hour whole-hour time measurement mode, single measurement mode, optional
Quality control: Positive quality control: The inhibition rate of 2mg/LZn2+ after 15 minutes of reaction is 20%-80%
Negative quality control: After 15 minutes of pure water reaction,0.6≤Cf≤1.8
Alarm signals: temperature faults and instrument faults, etc
Minimum maintenance cycle: ≥168 hours
Analog signal :4-20mA
Control signals :2 channels of digital output, 2 channels of digital input
Environmental requirements: Suggested temperature (5-33)℃; Humidity ≤85%(no condensation)
Power supply :(220±22)VAC,(50±0.5)Hz
Power efficiency :≤200W
Dimensions :600*600*1600 mm
Others:
It has the function of logging the operation process of the instrument. It can store the original data and operation logs for at least one year. Instrument abnormal alarm (including component failure alarm, over-range alarm, over-standard alarm, reagent shortage alarm and other information); Data is automatically saved in case of power failure. 10-inch TFT true-color LCD touch screen display and command input; In case of abnormal reset or power failure followed by power restoration, the working state will be automatically restored. Instrument status display function (such as measurement, idle, fault, maintenance, etc.); The instrument has three levels of management authority.