Optical Portable Dissolved Oxygen Meter DOS-118G
DOS-118G OPTICAL PORTABLE DISSOLVED OXYGEN METER
The BOQU Instrument launched a new optical portable dissolved oxygen meter. Unlike traditional electrochemical sensors, optical dissolved oxygen sensor use fluorescence quenching techniques. This technique is based on a proven method for accurately measuring dissolved oxygen concentrations. The concentration of oxygen in the water can be measured by the quenching effect of the fluorescent substance on the surface of the sensor, without the need for internal filling, and without the need for preheating. The sensor has a fast response, does not consume dissolved oxygen, from the flow rate and the impact of test solution dirt and so on.
TECHNICAL PARAMETERS
Product | DOS-118G Portable Optical Dissolved Oxygen Meter | |
Measuring range | 0-20 ppm DO,(0-200% saturation) | |
Resolution | ±0.1 mg/L ( 0-20 mg/L ) | |
Response time | <60 second | |
Principles and methods | ①The sensor surface contains fluorescent or dye substances ②LED emits blue light onto the sensor surface ③Blu-ray causes the fluorescent substance to excite and emits red light ④The time to emit red light is measured by the optical sensor ⑤The red LED lamp is used as a reference light source ⑥The higher the dissolved oxygen concentration, the red light emission time will be shortened, the optical sensor thus calculated by the oxygen concentration ⑦proprietary algorithms are more accurate than common linear algorithms | |
MAIN FEATURES
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BOQU Instrument focus on development and production of water quality analyzers and sensors, including water quality meter, dissolved oxygen meter, pH sensors, etc.
