WDL-9000A microcomputer automatic sulfur measuring instrument

The sulfur meter is a special device for measuring the total sulfur content in coal and coke. When there are black deposits in the sintered glass melting plate and its pipeline in the sulfur analyzer, it needs to be cleaned.
The cleaning method is as follows:
Take out the electrolytic cell (without opening the cover), first put some water in the battery to prevent it from spreading to the melting plate, use a dropper to inject the newly prepared liquid into the branch pipe of the melting plate (5 g potassium dichromate and 10 ml water) , Heat, dissolve and cool, then slowly add 100 ml of concentrated sulfur. c acid), after cleaning the washing liquid, repeat adding 2-3 times to remove the black deposits in the melting plate and branch pipes. Then rinse the electrolytic cell with tap water, and use the ear-washing ball to pump water from the branch pipe of the melting plate until there is no washing liquid. The molten metal plate should be as white as before. Install the electrolytic cell, turn on the electromagnetic pump, dry the glass melting plate and its branch pipe with air, and add it to the electrolyte for use. When there is black deposit in the glass valve between the combustion tube and the electrolytic cell, wipe it with a filter paper strip. The sulfur meter is a special device for measuring the total sulfur content in coal and coke. When there are black deposits in the sintered glass melting plate and its pipeline in the sulfur analyzer, it needs to be cleaned.