1、 Product Description:

※TC-100WType（CODCr、TP、TN）MicrowaveCODDissolver. Can measure the chemical oxygen demand in various surface water, domestic sewage, and industrial wastewater(CODCr)Total phosphorus(TP)Total nitrogen(TN)Perform rapid and efficient digestion determination. Guang Fan is applicable to the identification and management of water quality by environmental protection departments, water resources management departments, and public health departments at all levels.
※ Microwave sealingCODThe digester is a new type of device specifically designed to monitor the chemical oxygen demand of various types of wastewater, domestic sewage, and surface water in China.

※ in comparison withCODBiao Zun reflux method, microwave sealed digestionCODThe required reagents for the method are significantly reduced, the resistance to chloride ion interference is strong, and the digestion time is only10Minutes can be used as an equivalent method to achieve the goals of saving time, energy, water, and efficiency.

※ The instrument adopts testing methods and biao zhun（GB11889—11915—89）Vocabulary of Water Quality (Part 1)3—7Partial analysis methods, "Water and Wastewater Monitoring and Analysis Methods" (Third Edition)CODcrThe potassium dichromate method is basically the same as the potassium persulfate digestion spectrophotometric method for total phosphorus and total nitrogen.

2、 Technical features:
1Microwave sealingCODThe digester uses a frequency of2450MHZElectromagnetic waves(Called microwave)Energy is used to heat the reaction solution, and under the action of high-frequency microwave energy, the molecules of the reaction solution undergo high-speed frictional motion, causing their temperature to rise rapidly. In addition, a sealed digestion method is used to rapidly increase the pressure inside the digestion tank to about203kPaTherefore, not only does it shorten the digestion time, but it can also inhibit the oxidation of chloride ions to chlorine gas by potassium dichromate. If an appropriate amount of mercury sulfate is added as a masking agent, it can achieve the elimination of high chlorine waterCODdetermination. The entire digestion process does not require cooling water, reducing the hassle of installing cold water pipes and stopping water supply.
2Under the control of a microcomputer, a certain amount of potassium dichromate is used to oxidize the reducing substances in the water sample in a strong acidic solution. Excess potassium dichromate is titrated with ammonium ferrous sulfate using ferrous sulfate as an indicatorCODCrValue. Colorimetric method can also be used at the wavelength600nmDirectly measure the concentration of trivalent chromium in the reaction solution to obtain the water sampleCODCrValue.
3The instrument also uses a closed (sealed) state for digestion. One of its advantages is that it can create a certain pressure inside the tank to quickly increase the temperature of the reaction system and shorten the digestion time; Secondly, inCODcrIn the analysis, the effective inhibition of the oxidation of chloride ions to chlorine gas by potassium dichromate can be combined with the addition of an appropriate amount of mercury sulfate as a masking agent to determine the chemical oxygen demand of high chlorine wastewater.
4Sealed digestion, overpressure protection, safe and reliable, with a buzzer indicating completion of digestion.

5Can dissolve various substances, including chemical oxygen demand（CODcr）Total phosphorus（TP）Total nitrogen（TN）； Used for digestionCODcrWhen using sealed digestion, it can improve the ability to resist chloride ion interference and can be used for measurementCODcrValue greater than50mg/LThe chloride ion content is as high as10000mg/LThe water sample.

3、 Technical features:

4、 Main configuration:
1Host One unit
2Dissolving tank Six
3One power cord
4Instruction manual a copy
5Certificate of Conformity a copy
6Warranty card a copy