Measurement principle:

First, an oxidant is added to oxidize trivalent chromium in the water sample to hexavalent chromium. Then, a color developer is added to react with hexavalent chromium to form a purple red complex. The absorbance is measured by spectrophotometry, and the total chromium content (mg/L) is directly displayed after processing and calculation by a microcomputer system.

Function and Features:

1. Adopting imported high brightness and long-life cold light source with excellent optical performance, the light source has a lifespan of up to 100000 hours.
2. Large screen LCD Chinese display, direct data reading, simple and time-saving operation.
3. The memory standard working curve, and users can also calibrate the curve as needed.
4. It has data power-off protection function and data storage function.
5. Adopting intelligent PID temperature control technology and dual anti overheating protection system, heating is safe, uniform, and fast. Commonly used for the digestion of COD, total phosphorus, total nitrogen and other projects.
6. Large screen LCD Chinese display, simple and time-saving operation, no need to change the tube for color resolution and comparison.

Technical parameters: