MOdel:GA-ZRJY
BRAND:Guanao
- presentation
- parameters
- feature
GA-ZRJY Dissolved Oxygen analyser is a single fixed wavelength spectrophotometer, which adopt the principle of spectrophotometry to measure the parameters. In the instrument, the linear curves of the concentration of different parameters and the absorbance were established, and the concentration of the water samples was obtained through the identification of the color.
GA-ZRJY Dissolved Oxygen analysercan be used to test the parameters dissolved oxygen of drinking water, andwidely used in the field of urban water supply, food and beverage, environmental, medical, chemical, pharmaceuticalother water quality site rapid testing or laboratory standards detection.
Main factors affecting dissolved oxygen
1. Water temperature
When the oxygen partial pressure and salt content are constant, the saturation content of dissolved oxygen will decrease with the increase of water temperature. The saturation of dissolved oxygen varies more with temperature at low temperature.
2. Salt content
When the water temperature and oxygen partial pressure are constant, the higher the salt content in water, the lower the saturation content of dissolved oxygen in water. The salt content in seawater is much higher than that in fresh water. Under the same conditions, the dissolved oxygen saturation in seawater is much lower than that in fresh water. The change of salt content in natural fresh water is very small, so the influence of salt content on the saturation of dissolved oxygen in fresh water is very small, which can be approximately estimated according to the saturation of pure water.
3. Oxygen partial pressure
When the salt content of water temperature is constant, the saturated salt content of dissolved oxygen increases with the increase of surface oxygen partial pressure.
Parameters of dissolved oxygen analyzer：
1.small and beautiful, easy to carry, work stable,a high performance-price ratio
2. Microcomputer system configuration, touch keyboard, LCD crystal clear display.
3. This instrument adopts the photoelectric colorimetric principle of spectrophotometry, which is simple to operate. The sample is put into the reagent for a few minutes to read, and the repeatability error is less than or equal to plus or minus 2%.
4. The instrument adopts high strength long life light source and the light source is stable.
5. The main engine is equipped with a large power battery, which can be used for quantitative measurement in the field, and can work for 6 hours continuously.
6. The calibration curves within the range of the instrument are stored in the instrument, with the protection of power failure, the calibration data will not be lost.
7. Power supply mode: 220V, 50HZ;Dimensions (mm) : 250 x 145 x 60;Weight (kg) : 1.0.
