Design and development in accordance with the requirements of standards such as "HJ/T 399-2007 Water Quality Chemical Oxygen Demand Rapid Digestion spectrophotometric method", "HJ 535-2009 Water Quality Determination of Ammonia Nitrogen Nessler's reagent spectrophotometric method", "GB 11893-1989 Water Quality Determination of Total Phosphorus Ammonium molybdate spectrophotometric method", and "GBT 5750-2006 Standard Test Method for Drinking Water". It has the characteristics of safe and simple operation, fast and accurate detection, and high degree of intelligence. It adopts microcomputer control technology and can directly read concentration. Suitable for the determination of total nitrogen, chemical oxygen demand (COD), ammonia nitrogen, total phosphorus, permanganate index, chromaticity, turbidity, as well as heavy metals such as copper, iron, zinc, manganese, nickel, and various water pollutants in drinking water, surface water, groundwater, domestic sewage, and industrial wastewater.

Technical Specifications

1. Wavelength range: 380-800nm

2. * Detection positions: 2 water sample detection positions (1 tube and 1 dish each);

3. Reference channel: The instrument is equipped with two automatic reference channels: a colorimetric dish and a colorimetric tube;

4. Display: 7-inch capacitive color LCD touch screen;

5. Filter: comes standard with 6 wavelength filters; It can be increased to 10.

6. Optical path system: Fiber optic spectroscopic detection system (ZL number:) ZL 2018 2 0182044.4）；

7. Testing items: With nearly 50 preset testing items, it can directly measure COD, ammonia nitrogen, total phosphorus, total nitrogen, chromaticity, turbidity, and various inorganic pollutants; Multiple indicators including total chromium, nickel, copper, zinc, iron, lead and other heavy metals; At the same time, other items can be customized according to the detection requirements, and the setting program can be opened.

8. Storage: It can store 5 million pieces of detection data and can be freely accessed and viewed;

9. Pre stored curve: Pre stored factory standard curve, which can be revised and saved by oneself, or fitted by oneself,;

10. Digestion: Equipped with an independent digestion device, batch processing 12 samples;

11. Automatic calibration: The instrument has an automatic calibration function;

12. Printing method: standard built-in printer;

13. Data transmission: equipped with USB interface and serial port transmission function;

14. Operation interface: bilingual operation interface in Chinese and English;

15. Light source: The light source adopts the German Osram halogen tungsten lamp light source, effectively ensuring the stability of the light source.

Technical parameters of intelligent digester:

1. Screen: 5-inch color LCD capacitive touch screen, which can display real-time heating time, temperature and other parameters

2. Digestion project: pre-set COD, CODMn, total phosphorus, total nitrogen and other 4 digestion programs, as well as 8 custom digestion programs

3. COD program: preset at 165 ℃ for 10 minutes, can be modified and saved by oneself

4. CODMn program: preset 105 ℃, 30min, can be modified and saved by oneself

5. Total phosphorus program: preset at 120 ℃ for 30 minutes, can be modified and saved by oneself

6. Total nitrogen program: preset at 122 ℃ for 40 minutes, can be modified and saved by oneself

7. Dissolution well position: 12 wells, capable of dissolving 12 samples simultaneously

8. Temperature indication error: ± 1 ℃

9. Uniformity of temperature field: ± 1 ℃

10. Error in digestion time indication: ± 1S

11. Timer: 2

12. Applicable specifications: ø 16mm high-temperature resistant reaction tube, depth:>96mm