Technical Parameter

1、 Measurement method: HJ/T399-2007 "Rapid digestion spectrophotometric method".

2、 Measurement range: 0-2000mg/L (segmented measurement).

3、 Detection limit: 5 mg/L.

4、 Dissolving temperature: 165 ℃, 15 minutes.

5、 Anti chlorine interference: 1000mg/L.

6、 Resolution: 0.001mg/L.

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

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

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

10、 Instrument size: 190mm * 150mm * 95mm.

11、 Instrument power supply: 2800mA rechargeable power supply.

12、 Environmental temperature: 5-40 ℃.

13、 Environmental humidity: ≤ 85% without condensation.

14、 Weight: The host weighs less than 1.4kg, and the digester weighs less than 2kg.

main features

1. Using EPA approved methods that comply with HJ/T399-2007 standards, the measurement is accurate and effective.

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

3. Large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.

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

5. It can save 60 standard curves and 2000 measured values (date, time, parameters, test data).

6. Memory standard working curve, users can also calibrate the curve as needed.

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

8. It has a curve coverage interference function to prevent accidental operation of covering curves.

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

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

11. Optional printing function, which can print the measured values immediately or query historical records for printing.

12. Equipped with a large rechargeable battery, it has an extended standby time of up to 168 hours.

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.