Overview
The TR-108H COD rapid measuring instrument is developed and designed based on the HJ/T399-2007 standard. It adopts a closed digestion tube to digest thermostatic at 165 ° C, and calculates the COD content by measuring the Absorbance of Cr6 + and Cr3 + in water samples. The instrument adopts digestion Colorimetric integrated tube detection, which has the characteristics of small appearance, fast detection, simple operation and low cost. It is widely used in emergency monitoring, sewage treatment, chemical industry, wastewater, food, printing and dyeing industries Wastewater detection and R & D institutions, colleges and universities.
Features
1. Wide detection range: Dozens of detection parameters can be expanded and customized according to needs.
2. Sensitivity: The minimum display value can reach 0.001 mg/L.
3, light source advantages: the use of imported cold light source, Optical Property is better, no preheating, life up to 100,000 hours.
4. Operation intelligence: Intelligent operating procedures that guide users to easily complete operations.
5. Diversification of test methods: Standard measurement or Continuous Measurement mode can be selected.
6. Low cost of use: low price of consumables and low usage.
7. Safe operation: Colorimetric integrated tube is used for simple, fast and safe determination.
8. Large-screen LCD display, direct data reading, simple and time-saving operation.
9, the instrument design is small, box configuration, light weight, easy to carry.
10. Supporting special detection reagents to minimize user operation.
11. Support wireless Bluetooth printing, which can print historical measurement data.
12, can store 4000 sets of historical measurement data.
13. Built-in high-capacity rechargeable lithium battery, with remaining power display, low power consumption, and long standby.
14. Support network port, USB interface, Bluetooth function, and can transfer data with PC or printer.
15. Support Chinese/English display, friendly and intelligent design.
16. Built-in system programs and user programs, allowing constant test items to be added to the user program.
17. It features data storage and power-off protection to prevent data loss.
18. Built-in standard working procedures, no need for user calibration and calibrating.
19. Users can develop their own user programs and reagents.
20. A built-in help interface is provided to explain the routine precautions during the inspection process.
21. Equipped with a one-click factory reset function.
Principle
Based on the HJ/T399-2007 standard, a closed digestion tube is used for closed digestion. In a strong acidic solution, a special oxidation agent containing a certain amount of potassium dichromate is used to thermostatic digestion at 165 ° C under the action of a catalyst, so that the reducing substances in water are oxidized. Absorbance of Cr6 + and Cr3 + in water samples is determined at different wavelengths, and the content value of COD in water is calculated by Absorbance.
Applications
Emergency monitoring, sewage treatment, chemical industry, wastewater, food, printing and dyeing, R & D institutions, colleges and universities
Steps
1. Select Standard measurement or Continuous Measurement mode.
2. Sample Handling with Digestion Colorimetric Tube.
3, at 165 ℃ thermostatic digestion for 15 minutes.
4. Measure Water Sample Absorbance.
5. The instrument automatically calculates and displays the COD content value.
6. Data can be stored or transmitted via USB, LAN, or Bluetooth.
Notice
• The digestion instrument has three power supply modes of mobile power supply, vehicle-mounted power supply and 220V AC power supply for users to choose.
• environment temperature: 5~ 40 ℃.
• environment humidity: ≤ 85% non-condensing.
• Anti-chlorine interference: 1000mg/L (optional high-chlorine COD reagent).
• Batch capacity can be selected from 6, 16, 25.
• The printer is a portable thermal printer (optional).
• The operation interface supports Chinese/English (optional).
