Overview
TR 6900CNHN desktop STIP-scan is produced by TONGAO, which can quickly determine COD, ammonia nitrogen, total nitrogen and other parameters in water. The instrument integrates mature technologies in the field of water quality analysis, making the analysis system more complete, the operation is simple and fast, and the detection results are stable and reliable.
Features
1. Built-in two COD detection methods: HJ/T399-2007 national standard method and import detection method.
2. Standard test parameters include COD (prefabricated reagent), COD (powder pack reagent or custom reagent), ammonia nitrogen, and total nitrogen.
3. Strong scalability in the later stage, support parameters such as total phosphorus, phosphoric acid salt, turbidity, suspended solids, total chromium, hexavalent chromium, copper, iron, nickel, zinc, nitrite, CODmn, etc.
4. Using digestion Colorimetric integrated tube, digestion and Colorimetric share a reaction tube without transferring liquid.
5. Direct display results, Absorbance measurement by a specific wavelength cold light source, the system algorithm directly converts the concentration value.
6. Multiple measurements and removal of abnormal values, 10 or more measurements of water samples, and the average value after removal of abnormal values.
7. Detect abnormal prompts, including blank comparison prompts and result overrange upper limit prompts.
8. Built-in thermal printer and 5-inch high-definition color LCD screen, data storage 30,000 records.
9. Batch processing capacity up to 16/25 water samples/batch, support USB data cable and LAN communication interface.
Principle
The instrument uses a digestion Colorimetric integrated tube for operation, and the digestion and result reading of the sample share a reaction tube without transferring the liquid. Absorbance measurement is carried out on the sample using a cold light source of a specific wavelength, and the system directly converts the detection result into the sample concentration value through a specific algorithm. Multiple measurements (10 times or more) of the water sample are carried out, and the average value is taken after excluding the abnormal value to reduce the influence of external factors and prompt the detection of abnormalities.
Applications
Emergency monitoring, industrial wastewater, domestic sewage, sewage treatment, chemical industry, food, beverage, Spinning & weaving printing and dyeing, Eletroplating, papermaking, petroleum metallurgy, river treatment, R & D institutions, colleges and universities
Standards
HJ/T399-2007、HJ535-2009
Steps
1. Sample Handling with Digestion Colorimetric Tubes.
2. Place the sample in the instrument and start the measurement program.
3. Absorption measurement and result calculation are performed automatically.
4. View and record the test results, which can be output through the built-in printer.
Notice
• During operation, pay attention to the environment humidity not exceeding 85% and no condensation, and the environment temperature is between 5 and 40 ° C.
• When using a digestion Colorimetric tube, avoid dirt, scratches or fingerprints on the tube wall affecting the results.
• Pay attention to abnormal prompts during the detection process, such as blank comparison or over-range conditions.
• Power supply mode is AC (220V +/- 10%), 50Hz to ensure stable power supply.
• Instrument Protection Rating is IP30 to avoid use in harsh environments.
