Technical Specifications

1、 Measurement parameters: COD (Chemical Oxygen Demand), Ammonia Nitrogen, Total Phosphorus, Total Nitrogen.

2、 Measurement methods: HJ/T399-2007 "Rapid digestion spectrophotometry", HJ535-2009 "Nessler's reagent spectrophotometry", HJ671-2013 "Ammonium molybdate spectrophotometry", alkaline persulfate digestion spectrophotometry.

3、 Measurement range: 0-10000mg/L (segmented), 0-50mg/L (segmented), 0-20mg/L (segmented), 0-100mg/L (segmented).

4、 Detection limits: 5 mg/L, 0.05 mg/L, 0.02 mg/L, 0.1 mg/L.

5、 Dissolving temperature: 165 ℃, 15 minutes, no need to dissolve 125 ℃, 30 minutes, 125 ℃, 30 minutes.

6、 Resolution: 0.001mg/L.

7、 Accuracy: COD>50mg/L, indication error not exceeding 5%, indication error not exceeding 5%.

8、 Repeatability: The relative standard deviation shall not exceed 3%.

9、 Optical stability: ≤ 0.001A/20 minutes.

10、 Size: 310 * 230mm * 150mm.

11、 Power supply: AC (220V ± 5%), 50Hz.

12、 Environmental temperature: 5-40 ℃.

13、 Environmental humidity: ≤ 85% without condensation.

14、 Weight: The host weighs less than 3kg, and the digester weighs 6kg.

Main Features

1. The COD analyzer uses a method approved by the US EPA, which complies with HJ/T399-2007 standard and provides accurate and effective measurements.

2. The ammonia nitrogen analyzer uses a method recognized by the US EPA, which complies with the HJ535-2009 standard and provides accurate and effective measurements.

3. The total phosphorus analyzer uses a method recognized by the US EPA and complies with the HJ670-2013 standard, with accurate and effective measurement.

4. Adopting imported high brightness and long-life cold light source, with good optical performance and a light source lifespan of up to 100000 hours

5.5-inch large LCD screen, full Chinese display, direct data reading, simple and time-saving operation

6. Integrated digestion and colorimetric analysis, no need to replace the tube, simple and fast measurement, and no safety hazards.

7. It can save 80 standard curves and 1800 measured values (date, time, parameters, test data).

8. The memory standard working curve can also be calibrated by users as needed.

9. One click factory reset, which can quickly recover in case of curve loss caused by misoperation.

10. It has data storage function and data power-off protection function, making it convenient to query historical measurement data and prevent data loss.

11. Equipped with a USB interface, data can be transferred to the computer for permanent storage.

12. It has printing function, which can immediately print the measured values or query the historical records for printing.

13. 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.

Standard List