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SC-2 COD Tester
Model: SC-2 COD
Application
The instrument mainly test COD in groundwater, surface water, domestic sewage and industrial waste water, which is widely used in water quality monitoring in environmental protection, petroleum, chemical industries, health, etc.
Key Features
1.Conform to HJ/T399-2007
2.COD main part and the heater combined in one instrument
3.High accuracy, concentration value can be read directly
4.Data logger-automatic data storage of 100 analysis results (including testing time, absorbency and concentration)
5.20 standard curves, could be calibrated manually or automatically
6.USB interface, connect to different types of PC
7.Intelligently search data in database either by number or by time
8.Highlight LCD, displayed in Chinese or English
Technical Specifications
Digestion temperature: 165℃±2℃
Duration: 15min±2%
Error: ≤8%
Repeatability: ≤3%
Optical stability: ≤0.005A/20 min (absorbency switch≤0.005A in 20min)
Display sensibility: 0.001A
Display: Highlight LCD
Languages: Chinese, English
Dimension: 360x260x128mm
Weight: 4Kg
Structure of the instrument
Optical system
1.Light source: wavelength in LED600nm±20 nm and 440nm±20 nm respectively
2.Sample cell: square shape, 20mm and 10mm
Test and treatment system
1.Photoelectric cell receiver system;
2.Amplification circuit
3.A/D transfer
4.Single-chip microcomputer data processing
5.LCD display
The COD heater
Heating temperature: 165℃±2℃
Heating time: 15Min±2%
Display: LCD
Heat preservation: ≤+5℃ (shift to environmental temperature)
Principle
Water sample make an oxidation-reduction reaction with special reagent D and E containing a composite catalyst which not only speed reaction but also have the function of anti-interference to chloridion in the heater, and produce chromium(Ⅲ). Then the COD value is calculated by using the spectrophotometry to test the concentration of it.
This year Shipping shows:
As one part of Chincan Sales Group, each factory has technical support staffs available offering repair and maintenance of the products exported by Chincan. We promise that all of our products will be easily accessible to technical support and manufacturer's representatives who are always ready and able to assist when needed.
Established in 2004, Hangzhou Chincan Trading Co., Ltd. is a foreign trading company authorized by Chinese State Department of Foreign Economy & Trade and General Administration of Chinese Customs, which located in Hangzhou city, Zhejiang province, China.
We are a specialist company committed to exporting laboratory instruments, educational apparatus, medical & hospital equipments. With its superior performance, Chincan instruments are sold well throughout the Americas, Asia Pacific, the Middle East, Africa and Europe. With our excellent service, Chincan Trading has won a good reputation from the market.
Cooperative factories which qualified by Chincan come from many provinces and cities across China. All of them need to be ISO certified, Some products have CE.
Our customers spread all over the world, most products are very popular in Asia Pacific, Africa, Europe and South America,such as microscopes, autoclaves, shakers, incubators, baths, pH meters, spectrophotometers, pure water systems, balances, pipettes, centrifuges, viscometers, hardness testers, biological safety cabinets, etc.
We are doing our best to meet various needs of clients from different countries.
Our company website:
Q: What after-sales service can be provided by CHINCAN ?
A: The after-sales service of CHINCAN is divided into two parts: technical support and maintenance.
Q: What about the technical support and maintenence?
A: Sometimes users will get some problems when they operate the instruments which are unfamiliar or first time use, users can send us emails or call us about detailed information. We will provide users solution or operation video.For so many years’ experience, our instruments works well during warranty period. If there any parts are broken during warranty period, we would like to provide spare parts for free.
Q: How to solve the disputes between CHINCAN and customers during the after-sales maintenance?
A: We will be customer oriented,and make concessions in some principles , we will properly handle the disputes to maximize customer's satisfaction.
Normally all CHINCAN products are supplied with a warranty of 12 Months from the date of shipment. This warranty is entirely dependent on the following conditions:
1.The following circumstance don't belong to the warranty policy which is Man-made damages caused by improper operations.
2.The instruments must be operated in accordance with our operating guidelines; serviced and maintained on a regular basis in accordance with the terms specified in the relevant user manual.
3. Only approved spare parts should be used in the instruments which bought from CHINCAN and these should be changed on a regular basis as specified in the relevant user manual. Details of the approved spare parts and accessories for each instrument are shown in the user manual or alternatively this information can be obtained from CHINCAN.
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