Product Introduction:

The TGH-SC chemical oxygen demand water quality online automatic monitoring instrument adopts the potassium dichromate oxidation spectrophotometric method, using potassium dichromate as the oxidant, silver sulfate as the catalyst, and mercury sulfate as the chloride ion masking agent. Under strong acidic conditions, the sample is digested under high temperature and high pressure in a closed manner, and the absorbance of the digested solution is measured. The measurement method used by the instrument meets the requirements of the "Technical Requirements and Testing Methods for Chemical Oxygen Demand CODcr Water Quality Online Automatic Monitoring Instrument" (HJ377-2019) standard.

Product features:

1. Select valve components: Choose reagent sampling timing, flexible and diverse channels, with advantages such as minimum volume, easy maintenance, and long service life.

2. Visual photoelectric system: Through the visual photoelectric system, precise measurement of reagents is achieved, overcoming quantitative errors caused by wear of peristaltic pump tubes.

3. Micro metering component: With precise quantification of trace reagents, it reduces the amount of reagents used.

4. Sample injection component: Peristaltic pump negative pressure suction, an air buffer zone is set between the reagent and the pump tube to avoid corrosion of the pump tube; At the same time, it makes the mixing of reagents more concise and flexible.

5. It has functions such as automatic range switching, automatic standard sample verification, and waste liquid separation.

6. Reagent tube: Imported modified PTFE transparent hose with a diameter greater than 1.5mm is used to reduce the probability of particle blockage in water samples.

Technical parameters:

Application areas:

Applied to the measurement of chemical oxygen demand content in wastewater and surface water. Mainly used for water quality monitoring of pollution sources, industrial production process water, industrial and municipal sewage treatment, etc.