COD Meter LH-C660 Lohand Biological

Aksesoris Laboratorium

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,total nitrogen and total phosphorus in water. 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 Zhejiang Lohand in 2017.The Multi-parameter water quality detection meter adopts the spectrophotometry to measure the COD,Ammonia Nitrogen,Total Nitrogen and Total Phosphorus.



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,Total Nitrogen and Total Phosphorus

Test range

10-15000mg/L(COD)

0.05-100mg/L(Ammonia nitrogen)

0.02-20mg/L(Total Phosphorus)

0.5-500mg/L(Total Nitrogen)

Wavelength

COD 420nm,620nm

Ammonia Nitrogen 420nm

Total Nitrogen 420nm

Total Phosphorus 620nm

Indication error

≤±5%

Digestion temperature COD 165℃,20min

Ammonia Nitrogen N/A

Total Nitrogen 125℃,30min

Total Phosphorus 150℃,15min



Light source LED

Operating conditions Humidity:0-50% Relative humidity:0-80%(non-condensing)

Battery life Over 30 hours



COD Tester

3.Product Features

3.1 High memory storage

3.2 Low using cost

3.3 Intelligent saving power

3.4 Easy to hold