Portable COD Detetor

Based on authoritative authentication methods, HJ/T399-2007 Determination of chemical oxygen demand in water by rapid digestion spectrophotometr, to do research and design. Use an airtight digestion tube for airtight digesti. In a strong acidic solution, the special oxidant containing a certain amount of potassium dichromate is dissolved at 165℃ under the action of catalyst, so that the reducing substance in water is oxidized.The absorbance of Cr6+ and Cr3+ in water samples can be measured at different wavelengths, and the COD content in water is calculated by using the absorbance.

Adopt digestion colorimetric integrated tube detection, make detection more simple and safe. The instrument is characterized by compact design, rapid detection, simple operation and low cost, which is widely used in emergency monitoring, sewage treatment, chemical, pharmaceutical, hospital wastewater, food, printing and dyeing industry wastewater detection, and can also be used in research units, colleges and universities and other institutions of wastewater research and use.

Performance feature

1、Wide detection range：Dozens of detection parameters can be expanded and customized according to requirements to achieve optimal resource utilization.

2、High sensitivity: minimum display value up to 0.001mg/L.

3、Advantages of light source: Adopt imported cold light source with excellent optical performance. Preheating is not required, and the service life is up to 100,000 hours.。

4、Operative intelligence：with intelligent operation procedures, guide users to complete the operation easily。

5、Variety of test methods：either standard or continuous measurement modes can be selected, and speed and accuracy can be chosen freely.

6、Low cost of use：the price of consumables is low and the quantity is small.

7、Operational safety：Adopt digestion colorimetric integrated tube, which make the determination simple, fast and safe.

8、Large LCD screen display, data direct reading, simple operation and time saving .

Advantages of emergency detection

1、Compact and delicate instrument design, box configuration, light weight, easy to carry.

2、Equipped with special detection reagents, as far as possible to reduce user operation.

3、Support wireless bluetooth printing, and historical measurement data can be printed (optional Bluetooth printer).

4、It can store 4000 sets of historical measurements.

5、 It can achieve long standby due to built-in large capacity rechargeable lithium battery, remaining power display, low power, and low power consumption.The digestion device has three power supply modes for users to choose: mobile power supply, vehicle mounted power supply and 220V AC power supply.

Ø On line operation function

Support network port, USB interface, Bluetooth function, can transfer data with PC or printer

Software advantage

1. Support Chinese/English display (optional), with friendly and intelligent designand convenient operation.
2. Set up the system program and user program, you can add frequently tested items to the user program, which is easy to find.
3. It has the function of data storage and power off protection to prevent data loss and facilitate the query of historical data.
4. Standard working procedures have been set up without user’scalibration
5. Users can also develop their own user programs and reagents to adapt to different water conditions in different occasions.
6. The help interface is set up to explain the routine matters needing attention in the testing process.
7. Set the function of restoring factory Settings by one click.

Advantages of digestion device

1、6 well, 16 well or 25 well digestions are optional to meet the needs of users to the greatest extent.

2、Adopt intelligent PID temperature control technology and double anti-overtemperature protection system, which make the heatingsafe, uniform and fast。

3、With built-in standard digestion program and one-button digestion design, just press the “OK” button to complete the whole digestion process.

4、Support custom mode and you can freely set the digestion temperature and time. Achieve one-click resolution of the target mode.

5、Digestion of COD, total phosphorus, total nitrogen, total chromium and other items.