Optical portable dissolved oxygen meter, DOS-118G
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#Optical portable dissolved oxygen meter, DOS-118G
#Optical portable dissolved oxygen meter, DOS-118G
#Optical Portable DO 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
Optical principle and Maintenance-free: no need to add electrolyte solution
High stability, no need to regularly calibrate or replace the sensor cap.
High repeatability, no drift measured.
Simple operation, no agitation, no flow-dependent and accurate from dirt.
Automatic temperature and pressure compensation, plug and use.
Salinity compensation function: to test the sea water and a variety of salt solution dissolved oxygen.
