Chongqing Ouyu Technology Co., Ltd. (phone: 61996088, 61996099) is a high-tech enterprise that integrates industry and trade. A comprehensive enterprise specializing in the research and development, design, production, sales, and post operation and maintenance services of water quality process detection instruments. Widely used in various fields such as thermal power, environmental protection, chemical industry, steel, metallurgy, pharmaceuticals, biochemistry, food and tap water. A comprehensive manufacturing enterprise with a complete range of instrument types, diverse styles, strong environmental adaptability, and high cost-effectiveness of domestic products.

Technical indicators:

Measurement range: 0-5 mg/L total cadmium/total iron/total nickel/total lead/total arsenic/total zinc/total copper/fluoride/total manganese/total chromium hexavalent chromium (range expandable)

Accuracy: When the accuracy is ≥ 0.2 mg/L, it does not exceed ± 10%; When it is less than 0.2 mg/L, it should not exceed ± 0.02 mg/L.

Repeatability: not exceeding ± 5% or not exceeding ± 0.02mg/L

Measurement cycle: The minimum measurement cycle is 20 minutes, and according to the site, the color development time can be modified arbitrarily within 5-120 minutes

Sampling period: time interval (adjustable from 10 to 9999 minutes) and whole point measurement mode

Calibration cycle: 1-99 days, adjustable at any interval and time

Output: 4-20mA RS232

Environmental requirements: Indoor with adjustable temperature, recommended temperature range of+5-28 ℃; Humidity ≤ 90% (non condensing)

AC power supply: 220VAC ± 10%, 50Hz abnormal alarm and power failure will not lose data. Touch screen display and command input abnormal reset and power failure. After power failure, the instrument will automatically discharge residual reactants and restore working status

Main features:

XT-IV online total cadmium water quality analyzer

Measurement method: TPPS4 spectrophotometric detection

Basic principle: After mixing the water sample with a regulator, cadmium in the sample reacts with the indicator (TPPS4) in an alkaline environment to form a colored complex. The analyzer detects the change in color and converts it into a cadmium value for output. The amount of colored complex generated is equivalent to the amount of cadmium.

2、 XT-IV online total iron water quality analyzer

Measurement method: Phenanthroline spectrophotometric detection

Basic principle: Trivalent iron ions in water samples are reduced to ferrous ions by hydrogen amine hydrochloride. Under the action of buffer solution, ferrous ions react with ortho phenanthroline to form a colored complex. The analyzer detects the color change and converts it into total iron value for output. The amount of colored complex generated is equivalent to the total iron content.

3、 XT-IV online total nickel water quality analyzer

Measurement method: Diketoxime spectrophotometric detection

Basic principle: The water sample is oxidized by the oxidant ammonium persulfate, and in an alkaline environment and the presence of an indicator (dimethylglyoxime), it reacts with the indicator to form a colored complex. The analyzer detects the change in color and converts this change into a total nickel value output. The amount of colored complex generated is equivalent to the total nickel content.

4、 XT-IV online total lead water quality analyzer

Measurement method: TPPS4 spectrophotometric detection

Basic principle: After mixing the water sample with a regulator, the lead in the sample reacts with the indicator (TPPS4) in an alkaline environment to form a colored complex. The analyzer detects the change in color and converts it into a lead value output. The amount of colored complex generated is equivalent to the amount of lead.

5、 XT-IV online total arsenic water quality analyzer

Measurement method: Arsenic molybdenum blue spectrophotometric detection

Basic principle: The water sample is first digested by acid at high temperature and then mixed with a regulator. The arsenic in the sample reacts with the indicator in an acidic environment to form a colored complex. The analyzer detects the color change and converts it into the total arsenic value for output. The amount of colored complex generated is equivalent to the total arsenic content

6、 XT-IV online total zinc water quality analyzer

Measurement method: Zinc reagent spectrophotometric detection

Basic principle: After acid digestion, the water sample is mixed with a regulator and then oxidized by an oxidant. In an alkaline environment and the presence of an indicator, it reacts with the indicator to form a colored complex. The analyzer detects the change in color and converts this change into the total zinc value output. The amount of colored complex generated is equivalent to the total amount of zinc.

7、 XT-IV online total copper water quality analyzer

Measurement method: Sodium diethyldithiocarbamate spectrophotometric detection

Basic principle: This study uses the sodium diethyldithiocarbamate spectrophotometric method to determine total copper. At high temperatures, various copper compounds in the water sample are oxidized and digested by nitric acid to form divalent copper ions. Under ammonia conditions, copper ions react with sodium diethyldithiocarbamate to form yellow brown complexes. Within a certain concentration range, the absorbance of the system is proportional to the concentration of copper ions, and the total copper content in the water sample can be determined by spectrophotometry.

8、 XT-IV online fluoride water quality analyzer

Measurement method: Fluorine reagent spectrophotometric detection

Basic principle: Fluoride ions in water samples react with fluoride reagents and lanthanum nitrate in acetate buffer solution to form colored complexes. The analyzer detects the change in color and converts it into fluoride ion values for output. The amount of colored complex generated is equivalent to the amount of fluoride ions.

9、 XT-IV online total manganese water quality analyzer

Measurement method: Potassium periodate method for spectrophotometric detection

Basic principle: The water sample is dissolved at high temperature by an oxidant, and after cooling, it forms a colored complex with a color developing agent. The analyzer detects the change in color and converts this change into the total manganese value for output. The amount of colored complex generated is equivalent to the total manganese content.

10、 XT-IV online total chromium water quality analyzer

Measurement method: Diphenylcarbazide spectrophotometric detection

Basic principle: After mixing water sample and strong oxidant for digestion, trivalent chromium is oxidized to hexavalent chromium. Hexavalent chromium reacts with the indicator in an acidic environment to form a colored complex. The analyzer detects the color change and converts it into the total chromium value for output. The amount of colored complex generated is equivalent to the total chromium content.

11、 XT-IV online hexavalent chromium water quality analyzer

Measurement method: Diphenylcarbazide spectrophotometric detection

Basic principle: After mixing the water sample with a regulator, hexavalent chromium reacts with the indicator in an acidic environment to form a colored complex. The analyzer detects the color change and converts it into a hexavalent chromium value for output. The amount of colored complex generated is equivalent to the amount of hexavalent chromium.