DL1001 Laboratory Intelligence

The DL1001 laboratory intelligent COD analyzer adopts advanced intelligent control and digestion technology in accordance with the manual testing methods and reaction conditions specified in GB11914-89 and the new standard HJ828-2017, achieving batch automated analysis of laboratory COD and obtaining the same results as the manual testing methods specified in HJ828-2017. There are two types of samplers available for instrument configuration: DL1001 Laboratory Intelligent COD Analyzer and DL1002 Lazy Intelligent Sampler. The operation is simple, as long as the box containing the sampling bottle is directly placed on the sampling rack of the sampler, and the instrument start button is clicked to automatically complete the information reading, registration, homogenization, sampling, and preparation of the sample; The DL1001 laboratory intelligent COD analyzer+DL1003 rotary intelligent sampler requires pouring the sample into the sample bottle in the sampling tray and manually entering the serial number and corresponding sample name. Pressing the start button will automatically complete the entire testing process. The instrument works continuously without human supervision 24 hours a day and can measure 90 samples. When using the instrument, it is directly connected to a computer, and its dedicated software controls the instrument process and processes data. Users can monitor the instrument's dynamics at any time through wireless networks and devices such as mobile phones.

This instrument, Delin, has completely independent intellectual property rights. After 5 years of research and development, it has accumulated 14 patents and been carefully manufactured (patent number: 5；.8；. 7；.6；. 7；.3；. 4；.0；. 3；. X；.1；. 0 X；.1）。

This instrument is suitable for laboratory batch COD analysis in various levels of environmental monitoring stations, scientific research units, testing companies, operation companies, sewage treatment plants and other institutions.

Instrument structure

The intelligent COD analyzer in the laboratory consists of a liquid preparation system, a coordination system, a heating system, a titration system, and a control system (without a dash), which is a perfect combination of flow analysis and classical volumetric analysis.

Technical Parameter

Product functional features

The legal validity of the method

l Completely following《GB11914-89Determination of Chemical Oxygen Demand for Water Quality-The Dichromate Method 《HJ 828-2017Determination of Chemical Oxygen Demand for Water Quality-The analysis process specified in the Dichromate Method is automatically tested.

The reagents used in the instrument are the same as those used in manual analysis. The amount of samples and reagents can be selected according to the standard method, or according to the standard method1/5. Reduce80%The reagents can save a lot of testing and waste liquid treatment costs, reduce environmental pollution, and also reduce the time for liquid inlet and heating before digestion in the analysis process.

Efficient batch analysis

On the basis of ensuring reflux digestion for 2 hours, the digestion temperature is the same as the standard method, and the newly invented technology is used to achieve intelligent liquid preparation, digestion, and titration processes, greatly improving analysis efficiency.

Use a sequential injection, heating, titration, and cleaning operation mode to fully utilize the instrument's sampling time. The instrument has two digestion units, each with9A digestion reflux device. Each digestion device automatically adds water samples and reagents and then independently heats them at atmospheric pressure, boiling and refluxing2Hour; The digested test solution enters the titration system and is automatically titrated with ferrous ammonium sulfate solution. The instrument is automatically cleaned. instrument24Can make samples continuously for hours91One.

The newly invented titration algorithm and fast titration technology. At the beginning, titrate quickly, and when approaching the endpoint, titrate slowly for a more accurate endpoint.

Using rapid heating and cooling techniques to shorten the ineffective time during the analysis process. Each digestion tube has an independent temperature control circuit, which strictly controls the heating and cooling temperatures, overcoming the problem of uneven temperature caused by multiple digestion tubes being heated together by a heating table, greatly improving measurement accuracy.

high reliability

By using photometric titration technology, the detection results are more stable and the maintenance free period is greatly extended, which is more in line with national standards.

The newly invented integrated digestion and condensation tube not only simplifies the operation of the instrument, reduces the failure rate, but also prevents the escape of components that may be caused by digestion heating.

By combining the precise flow analysis of Delin with classical volumetric analysis techniques, the instrument operation is greatly simplified and the failure rate is significantly reduced.

High accuracy

Using Delin's self-developed anti boiling technology, coupled with independent and precise temperature control, ensures smooth heating and reflux.

Daily automatic calibration of ferrous ammonium sulfate titrant.

Adopting high-precision injection technology, the relative standard deviation of injection is measured≤0.1%.

Simple and convenient

L will500 mlAfter placing the sample bottle directly into the sampling tray, pressing the start button will automatically complete continuous measurement, result output, and data analysis, and generate detection reports. Automatic shutdown upon completion of the test.

The operation status and analysis results of the instrument can be transmitted to the analysis engineer's mobile phone for easy viewing of data and control at any time.

L can automatically perform various dilution measurements on high concentration water samples or high chlorine water samples with specified sample numbers.