TR-208S COD ammonia nitrogen rapid analyzer
Detection principle:
The TR-208S COD ammonia nitrogen analyzer from Tongao brand uses a closed catalytic digestion colorimetric method with a digestion tube for COD determination, and a Nessler's reagent colorimetric method for ammonia nitrogen determination, both of which are recognized by the US EPA. After imported cold light source, narrowband interference technology, and microcomputer automatic data processing, the COD and ammonia nitrogen values of the sample are directly displayed. The instrument is widely used in environmental monitoring, sewage treatment, scientific research institutions, and colleges and universities.
Technical Specifications:
| measurement parameters | COD (Chemical Oxygen Demand) | ammonia nitrogen |
| measurement method | HJ/T399-2007 "Water Quality Rapid Digestion Spectrometric Method" | HJ535-2009 "Nessler's reagent spectrophotometric method for water quality" |
| Measurement range | 0-2000mg/L (segmented measurement) | 0-50ppm (segmented measurement) |
| detection limit | 5mg/L | 0.05 mg/L |
| dissolution temperature | 165℃ | No need to dissolve |
| resolution | 0.001 mg/L | |
| accuracy | COD>50mg/L, The indication error shall not exceed 5% | The indication error shall not exceed 5% |
| repetitiveness | The relative standard deviation shall not exceed 3% | |
| Optical stability | ≤ 0.001A/20 minutes | |
| size | 310mm*230mm*150mm | |
| power supply | AC(220V±5%),50Hz | |
| ambient temperature | 5~40℃ | |
| ambient humidity | ≤ 85% non condensing | |
| weight | Host<3kg, disintegrator 1.3kg | |
Product Features:
1. The COD determination is carried out using EPA approved methods, which comply with HJ/T399-2007 standards and are accurate and effective.
2. The determination of ammonia nitrogen is carried out using a method recognized by the US EPA, which complies with HJ535-2009 and is accurate and effective.
3. Adopting imported high brightness and long-life cold light source with excellent optical performance, the light source has a lifespan of up to 100000 hours.
4. 5-inch large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.
5. Dissolve colorimetric integrated, no need to replace tube, simple and fast measurement, no safety hazards.
6. Can save 20 standard curves and 200 measured values (date, time, parameters, test data).
7. The memory standard working curve, and users can also calibrate the curve as needed.
8. It has a curve coverage interference function to prevent curve coverage problems caused by customer misoperation.
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. 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 equipment list:
Standard List of TR-208S COD Ammonia Nitrogen Analyzer
| serial number | name | quantity | serial number | name | quantity |
| 1 | Measurement host | 1 unit | 8 | Color tube cleaning cloth | 1 piece |
| 2 | 6-hole intelligent digestion instrument | 1 unit | 9 | power cord | 2 pieces |
| 3 | Dissolve the protective cover | 1 piece | 10 | Instruction Manual | 1 copy |
| 4 | COD reagent | 1 set | 11 | Certificate of Conformity/Warranty Card | 1 copy |
| 5 | Ammonia nitrogen reagent | 1 set | 12 | ||
| 6 | Dissolving colorimetric integrated tube | 20 pieces | 13 | ||
| 7 | Dissolve the pipe rack | 1 piece | 14 |
Click to view other COD analyzers:
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2. TR-108S economical COD rapid analyzer
3. TR-108B portable COD rapid analyzer
