Detection principle:
COD:Measure the total absorbance of unreduced Cr6+and reduced Cr3+at a certain wavelength in a low range. Measure the absorbance of Cr3+produced by reduction at a certain wavelength under high range. After calculation by the microcomputer chip, the COD content (mg/L) is directly displayed.
Ammonia nitrogen:Ammonia nitrogen, which exists in the form of free ammonia or ammonium ions, reacts with Nessler's reagent to form a yellow brown complex. The absorbance of this complex is proportional to the ammonia nitrogen content and is measured at a wavelength of 420nm. After calculation by the microcomputer chip, the ammonia nitrogen content (mg/L) is directly displayed.
Technical parameters:
|
Measurement parameters |
COD(Chemical Oxygen Demand) |
Ammonia nitrogen |
|
measuring method |
HJ/T399-2007 |
HJ/535-2009 |
|
Measurement range |
0-10000mg\L(Segmented) |
0-50 mg\L(Segmented) |
|
limit of detection |
mg\L |
0.01 mg\L |
|
Dissolving temperature |
165℃,15min |
--------- |
|
resolution |
0.001 mg\L |
|
|
accuracy |
COD>50ppmWhen,≤5% |
≤5% |
|
repeatability |
≤±5% |
|
|
Optical stability |
≤0.001A/20minute |
|
|
power supply |
AC(220V±5%),50Hz |
|
|
ambient temperature |
5~40℃ |
|
|
ambient humidity |
≤85%No condensation |
|
|
weight |
Host<3kgDissolver<6.7kg |
|
Product features:
1. Research and development of relevant national standards, with accurate, fast, and effective detection data.
2. Imported cold light source is used, with excellent optical performance, good stability, and a light source lifespan of 100000 hours.
3. 5-inch LCD screen, full Chinese display, direct data reading, simple and time-saving operation.
4. The practical integrated optical colorimetric tube for digestion detection does not require pipetting or tube replacement, making the measurement simple, fast, and safe.
5. Built in 80 curves and 1800 measurement data, which can be expanded by customers themselves.
6. The system comes with a one click recovery setting, which can quickly recover in case of data loss due to misoperation.
8. It has data storage function and power-off protection function, making it convenient to query historical data and prevent data loss.
9. External USB interface, data can be transferred to the computer for long-term storage.
10. Embedded printer that can immediately print detection data or save records for printing.
11. The digestion instrument adopts intelligent PID temperature control technology and a dual anti overheating protection system, with safe and uniform heating and fast speed, and is suitable for the digestion of COD, total phosphorus, total nitrogen and other projects.
Standard configuration:
|
Serial Number |
name call |
quantity |
Serial Number |
name call |
quantity |
|
1 |
practicalCODAmmonia nitrogen rapid analyzer |
1tower |
7 |
Simplified operation flowchart |
1share |
|
2 |
Dissolving colorimetric tube |
10branch |
8 |
operation instructions |
1share |
|
3 |
Color tube cleaning cloth |
1piece |
9 |
certificate of conformity\warranty card |
1share |
|
4 |
COD ammonia nitrogen determination reagent |
1cover |
10 |
Power Cables |
1strip |
|
5 |
USBdata line |
1strip |
11 |
Drive CD |
1fix |
|
6 |
16Pore digestion apparatus |
1cover |
12 |
Dissolve the protective cover |
1individual |
