Visay/YSI portable fluorescence dissolved oxygen analyzer from the United Statescharacteristic:
Innovative fluorescence method principle, no need to replace membrane and electrolyte, basically maintenance free;
No need to replace the fluorescent cap, lower usage cost;
No oxygen consumption, no requirements for flow rate and agitation;
Not affected by chemical substances in wastewater, it can be applied in harsh wastewater environments;
Almost maintenance free, saving time and reducing the cost for the owner;
Pre calibration at the factory, no calibration is required during user use;
● No polarization time, open the measuring instrument to start measuring;
Quick response, requiring only a small amount of stirring;
Accurate measurement can achieve an accuracy rate of 99%;
Durable and sturdy, the sensor can maintain its accuracy even under scratches and partial contamination, and is easy to clean;
Long lifespan, normal use can reach a lifespan of 5 years;
Good performance in small ranges, more suitable for sewage treatment engineering applications;
● Large capacity storage space, data can be read through USB interface without the need for driver programs

Visay/YSI portable fluorescence dissolved oxygen analyzer from the United StatesMeasurement performance:
Range: 0.00~20.00mg/L or 0.00~20.00ppm, air saturation 0~200%
resolving power: 0.01mg/L，0.01ppm
Accuracy: ± 0.1% FS or ± 0.15mg/L,
Response time:<30 seconds
Calibration: Factory calibration, can be calibrated on-site
Display: LCD displays date, time, dissolved oxygen value, temperature value, historical records, etc

Data Storage
Digital interface: USB interface
Data storage: capable of storing 800000 records
Operation settings: completed through controller buttons

power supply
Power supply method: battery powered, with charger
Battery life: can measure about 1000 minutes per charge
Power indicator: Yes