Detail COD Tester Brand Lohand
COD Meter
COD Tester
COD Tester is a water detection meter which is promoted by Hangzhou Lohand in 2017.Rapid digestion spectrophotometry,Nexler’s reagent spectrophotometry and molybdic acid spectrophotometry were used to test the concentrations of COD,ammonia nitrogen in the water. The reacting is used by digestion tube.The digestion and color comparison are combined in one. This instrument has below features: 1.No moving parts inside, high measurement accuracy. 2.Small amount of samples and reagents required, fast speed. 3.Professional optical circuit design,good optical stability. 4.Small size, light weight, protection grade IP65 or above. The instrument is strictly produced in accordance with ISO9001 2015 quality management system.And has been passed the strict test before leaving the factory.
COD Tester
Brief introduction
Multi-parameter water quality detection meter is a water detection meter which is promoted by Hangzhou Lohand in 2017.Rapid digestion spectrophotometry,Nexler’s reagent spectrophotometry and molybdic acid spectrophotometry were used to test the concentrations of
COD,ammonia nitrogen in the water.
The reacting is used by digestion tube.The digestion and color comparison are combined in one.
The instrument is strictly produced in accordance with ISO9001 2015 quality management system.And has been passed the strict test before leaving the factory.
COD: In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution. It is commonly expressed in mass of oxygen consumed over volume of solution which in SI units is milligrams per liter (mg/L). A COD test can be used to easily quantify the amount of organics in water.
Ammonia nitrogen means nitrogen present in the form of free ammonia(NH3)and ammonium ions(NH4)in water. The nitrogen content of animal organic compounds is generally higher than that of vegetable organic compounds. At the same time, nitrogen-containing organic matter in human and animal feces is very unstable and easily decomposed into ammonia. Therefore, when the content of ammonia nitrogen in water increases, it refers to the nitride in the form of ammonia or ammonium ions.
COD Tester
2.Technical parameter
Test item
COD,Ammonia nitrogen
Test range
0-15000(COD)
0-50(Ammonia nitrogen)
Wave length
420nm/450nm/6 10nm
Method
Spectrophotometer
Precision
5%
Light source
silicon diode
Life of battery
More than 30h
Size and weight
90x70x125mm
300g(including battery)
