Technical Parameter

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， The indication error shall not exceed 5%, and 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、 Size: 190mm * 150mm * 95mm.

11、 Power supply: 2800mA rechargeable power supply

12、 Environmental temperature: 5-40 ℃.

13、 Environmental humidity: ≤ 85% without condensation.

14、 Weight: Host ＜ 1.4kg, Dissolver ＜ 2kg

main features

1. The COD determination is carried out using a method recognized by the US EPA, which complies with the HJ/T399-2007 standard and is accurate and effective.

2. The determination of ammonia nitrogen is carried out using a method recognized by the US EPA, which complies with the HJ535-2009 standard and is accurate and effective.

3. The total phosphorus determination is carried out using the method recognized by the US EPA, which complies with the HJ670-2013 standard and is accurate and effective.

4. The total nitrogen determination is designed and developed according to GB11894-89, and the measurement results are accurate and effective

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

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

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

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

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

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

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

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

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

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

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

16. 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

Ordering Guide

1. The constant of the electrode must be informed.

2. The length of the electrode cable is 5 meters without explanation.

3. Installation method of electrodes.

4. Power supply, not specified as AC220V.

5. If you need to measure and control resistivity, order model: CON5103B Chinese online resistivity meter.