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Address
2nd Floor East, Building A2, Shunheda Industrial Park, Liuxiandong Industrial Zone, Xili Street, Nanshan District, Shenzhen
Shenzhen Changhong Technology Co., Ltd
2nd Floor East, Building A2, Shunheda Industrial Park, Liuxiandong Industrial Zone, Xili Street, Nanshan District, Shenzhen


TQCOD-3N COD analyzer
Design according to the latest national standard COD determination method;
Easy to operate, intuitive, with good accuracy and stability;
Equipped with printing and USB data upload;
Adopting a large screen color touch screen with Chinese and English display;
Equipped with one click recovery function;
product overview
Utilize sealed catalytic digestion and then perform colorimetric measurement.
Advanced cold light source, narrowband interference technology, and microcomputer automatic data processing directly display and print the COD (mg/L) value of the sample.
Widely applicable to environmental monitoring, sewage treatment, colleges, research institutions and other departments
TECHNICAL INDEX
Instrument Name |
COD analyzer |
Temperature control time |
1~9999min adjustable |
Instrument model |
TQCOD-3N |
precision |
±0.5℃ |
Measurement project |
COD |
Optical stability |
≤0.002A/20min |
measuring range |
5-2000mg/L (exceeding dilution determination) |
Repeatability |
≤3% |
Indication error |
≤±5 %(F.S) |
Batch processing volume |
16 water samples (optional 20, 25, 36) |
Anti chlorine interference |
≤2000mg/L |
display |
Color touch screen, displaying in both Chinese and English |
Dissolving temperature |
165℃ |
Instrument dimensions |
Measuring instrument: 400mm × 300mm × 140mm Dissolver: 260mm × 355mm × 135mm (excluding protective cover) |
digestion time |
15min |
weight |
Tester: 2.6kg; Dissolver: 5.5kg |
temperature control |
Room temperature can be set between 200 ℃ |
power consumption |
<500W |
Normal usage conditions: | |||
ambient temperature |
5~40℃ |
relative humidity |
≤85% |
power supply |
AC(220±22)V;(50±0.5)Hz |
No significant vibration or electromagnetic interference, avoid direct sunlight. |
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Instrument characteristics
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, it can also query the standard value and corresponding absorbance of each standard substance during calibration, as well as the calibration time and calibration personnel number, fully reproducing 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 error free calibration, achieving zero error measurement of the set point, completely 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 colorimetric tubes, 1 test tube rack, 1 set of COD reagents, 1 USB cable, 1 data acquisition installation CD, 2 power cords, 1 user manual, 1 product certificate and 1 warranty card.
More information about COD analyzer can be viewed in the water quality analysis instrument of Shenchanghong Laboratory.