The water quality COD, ammonia nitrogen, total phosphorus, and total nitrogen analyzer $r $n $r $n Shenchanghong TCNPN-401D can detect the concentrations of COD, ammonia nitrogen, total phosphorus, and total nitrogen in water. $r $n $r $n $r $n is widely used in various industries such as environmental monitoring, sewage treatment, and universities, research institutions, and other departments.
Water quality COD ammonia nitrogen total phosphorus total nitrogen analyzer


Water quality COD ammonia nitrogen total phosphorus total nitrogen analyzer
Equipped with DIS-16B (or optional DIS-20B/25B/36B) digestion analyzer;
Equipped with printing and USB data upload;
Large screen color touch screen, displayed in both Chinese and English;
Equipped with one click recovery function;
Used for wastewater detection.
Technical Specifications
Instrument name |
COD/ammonia nitrogen/total phosphorus/total nitrogen analyzer |
Instrument model |
TCNPN-401D
|
measurement items |
COD |
ammonia nitrogen |
Total Phosphorus |
Total Nitrogen |
measurement range |
5-2000mg/L (expandable) |
0.02~25mg/L |
0.00~10mg/L |
0.05~100mg/L |
indication error |
≤±5%(F.S) |
≤±3%(F.S) |
≤±5%(F.S) |
≤±5%(F.S) |
Anti chlorine interference |
≤2000mg/L |
- |
- |
- |
dissolution temperature |
165℃ |
- |
125℃ |
125℃ |
digestion time |
15 minutes |
- |
30 minutes |
30 minutes |
Temperature Control System |
Room temperature~200 ℃ can be set
|
repetitiveness |
≤±3% |
temperature control accuracy |
≤±1.0℃ |
Optical stability |
≤ 0.002A/20 minutes |
Batch processing volume |
16 water samples (optional 20, 25, 36) |
display screen |
Color touch screen, display in both Chinese and English |
Instrument size |
Measuring instrument: 400mm × 300mm × 140mm; Dissolving instrument: 260mm × 355mm × 135mm (excluding protective cover) |
Instrument weight |
Tester: 2.6kg; Dissolver: 5.5kg |
| power consumption |
<500W |
Normal usage conditions |
⑴ Environmental temperature: 5-40 ℃;
⑵ Relative humidity: ≤ 85%
⑶ Power supply: AC (220 ± 22) V, (50 ± 0.5) Hz;
⑷ No significant vibration or electromagnetic interference, avoid direct sunlight.
|
working principle
The instrument can directly measure the concentrations of COD, ammonia nitrogen, total phosphorus, and total nitrogen in water samples. COD is a fast digestion optical method; Ammonia nitrogen adopts the Nessler's reagent method; Total phosphorus is obtained using the phosphomolybdenum blue method; Total nitrogen is determined using the alkaline potassium persulfate method.
Product features of water quality COD, ammonia nitrogen, total phosphorus, and total nitrogen analyzer
1. The separation of the measuring instrument and the digestion instrument does not affect the stability of the optical system.
2. The measuring instrument is a cold light source and narrowband interferometric optical system with good optical stability. The calibration light intensity can be adjusted to 16 levels and set arbitrarily, which can effectively solve the problem of measurement range expansion caused by signal strength.
3. The host and digestion instrument have a color touch screen display in both Chinese and English, with a user-friendly interface and an operation guide to provide instructions for various functional operations.
4. The curve can be queried. In addition to querying the curve equation, the standard value and corresponding absorbance of each standard substance during calibration, as well as the calibration time and calibration personnel number, can also be queried to reproduce the state during calibration.
5. It has a one click recovery function, which can achieve one click recovery when the factory curve and user curve data records are lost due to accidents
6. The digestion instrument has multi-point calibration to achieve measurement of the set point, eliminating the errors caused by the nonlinearity of temperature sensors in common digestion instruments on the market.
7. The digestion instrument has a timed reminder and can be set to automatically shut down after digestion. The instrument has a secondary protection function. When the temperature of the digestion instrument exceeds 200 degrees, the instrument will cut off the power by itself to ensure the safety of the digestion process.
8. In addition to a maximum of 250 factory curves, users can add 3500 curves themselves, calibrate them, and store them in the instrument.
9. Store up to 100000 records (including parameter names, concentrations, units, detection times, operator numbers, etc.).
10. It has printing function: it can print the test records immediately or query the records for printing.
11. USB interface, can be connected to a computer.
Configuration List
1 host, 1 digestion instrument, 1 pipette, 10 digestion tubes (16 * 145mm), 40 colorimetric tubes (16 * 110mm), and 1 test tube rack, COD、 1 set of reagents for ammonia nitrogen, total phosphorus, and total nitrogen, 2 power cords, 1 USB cable, 1 data acquisition installation CD, 2 power cords, 1 user manual, 1 product certificate, and 1 warranty card.