1. The Kjeldahl nitrogen analyzer works loudly, is it normal?
Answer: It is a normal phenomenon, this is the sound of the air pump working inside the machine 
2. During the work of Kjeldahl nitrogen analyzer, alkali cannot be added, and there is no sound when adding alkali. Why?
Answer: Check if there is air leakage in the cask so that the drum-filled machine can work normally. The instrument will be used for a long time, the inside of the caustic tube will crystallize, and the flow rate will be reduced when the liquid is added.
3. When a nitrogen analyzer is working, a smoke-like gas comes out from the top, what's going on?
Answer: Check whether the faucet of the cooling water inlet is turned on. If the cooling water is turned off or the amount of water is small, the steam from the digestion tube cannot be condensed. The steam from the machine is similar to smoke.
4. When the digestion tube is filled with water during the use of the nitrogen analyzer, how to solve it?
Answer: When the digestion tube is filled with water during the use of the nitrogen analyzer, it is caused by the reduced conductivity of the water level controlled by the machine. The solution: open the water level and take out the probe to polish with sandpaper to remove the oxide layer; add 3- in the distilled water bucket 5 grams of laboratory sodium chloride, shake to dissolve
5. During the use of the nitrogen analyzer, the distiller and water level are filled with water, and the boric acid absorption container is filled with water. How to solve it?
Answer: It is caused by the decrease in conductivity of the water level controlled by the machine. The solution: open the water level and take out the probe to polish with sandpaper to remove the oxide layer; add 3-5 grams of laboratory sodium chloride to the distilled water bucket and shake to dissolve
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