Detection principle:

The principle of COD ammonia nitrogen determination adopts the closed catalytic digestion colorimetric method with a digestion tube, and the ammonia nitrogen determination adopts the Nessler's reagent colorimetric method, both of which are recognized methods by the US EPA. After importing cold light source, narrowband interference technology, and microcomputer automatic data processing, the COD and ammonia nitrogen values of the sample are directly displayed.

Features:

1. Adopting imported high brightness and long-life cold light source, with excellent optical performance and a light source lifespan of up to 100000 hours.
2. Large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.
3. Dissolve colorimetric integrated, no need to replace tube, simple and fast measurement, no safety hazards.
4. It can save 60 standard curves and 2000 measured values (date, time, parameters, test data).
5. The memory standard working curve, and users can also calibrate the curve as needed.
6. One click factory reset allows for quick recovery in case of curve loss due to misoperation.
7. It has the function of curve coverage interference to prevent accidental operation of covering curves.
8. It has data storage function and data power-off protection function, making it convenient to query historical measurement data and prevent data loss.
9. Equipped with a USB interface, data can be transferred to the computer for permanent storage.
10. Built in super large rechargeable battery, with ultra long standby time of up to 168 hours.
11. The whole set of box configuration is convenient for carrying to the site and field for testing, making it the best choice for on-site operation.
12. The digestion instrument adopts intelligent PID temperature control technology and a dual anti overheating protection system, ensuring safe and uniform heating with fast speed. Used for the digestion of COD, total phosphorus, total nitrogen and other projects.

Technical Specifications: