widely used in environmental supervision, sewage treatment and research activities in relevant works.

Applicable areas:

Be applicable to environment protection industries, petroleum industries, chemistry industries, sanitation industries, etc. To test the COD value in ground water, surface water and industry sewage.

Characters

Test COD value in various waters accurately, concentration value direct reading100 data preinstalled (including time of testing, absorbency and concentration value)20 standard curves preinstalled, both manual correction and automatic correction availableUSB interface, uploading data to PCIntelligent data search in database ordinally or chronologically.LCD display, Chinese-English version

Specifications:

Digestion temperature: 165±2Duration: 15Min±2%Error: ≤8%Repeatability: ≤3%Optical stability:≤0.005A/20 Min(absorbency switch≤0.005A in 20min)Display sensibility: 0.001ADisplay style: LCD, Chinese-English versionDimension: 360x260x128mmWeight: 4Kg

COD heating block:

Digestion temperature: 165±2Duration: 15Min±2%Display style: LCDIsolation character: ≤+5 to environmental temperature

Principle:

It adopts a special reagent which contains a combined catalyzer to speed up reaction and anti-jam to chloridion. Water sample reacts by adding Reagent C as well as Reagent E, which is the rapid oxidation-reduction reaction and produces trivalent chromic ion. The instrument will test its concentration in spectrophotography to get COD value.  

Structure design:

Optical system 22 Light source: wavelength in LED600nm±20 nm and 440nm±20 nm respectivelySample cell: square shape, 20mm and 10mm

Test and treatment system:

Optical battery receiver system;Amplification circuit;AD transfer;Single-chip data treatment;LCD display;Sample digesting

SC-2 COD Detector