Although the Kjeldahl nitrogen analyzer is good, sometimes problems arise too. How to analyze problems of the Kjeldahl nitrogen analyzer scientifically and effectively solve them has become the key point of knowledge that you urgently need. Therefore, this article will share 10 common problems and solutions of the Kjeldahl nitrogen analyzer today.
1. The Kjeldahl nitrogen analyzer rolls violently during distillation, will it pose a danger to the operator?
Generally, not, the Kjeldahl nitrogen analyzer tumbling violently during distillation is caused by a large amount of water vapor entering the digestive tube and the liquid tumbling is not caused by a violent reaction. The Kjeldahl nitrogen analyzer has an overpressure protection device, which can maintain the normal pressure inside the pipeline to avoid danger.
2. What are the requirements for water quality in the work of the Kjeldahl nitrogen analyzer?
The distilled water barrel of the Kjeldahl nitrogen analyzer should be filled with distilled water or pure water. If the Kjeldahl nitrogen analyzer is not used for a long time, the water in the distiller should be released.
3. Why is there no sound when the Kjeldahl nitrogen analyzer is turned on?
The Kjeldahl odometer has no sound when it is turned on. If the red light on the power switch of the machine is on, it means that the fuse in the odometer is blown out. The fuse is located in the black case 5 cm away from the power switch interface inside the machine.
4. How to solve the problem of not adding water to the distiller after the Kjeldahl nitrogen analyzer is turned on?
Half a minute after starting up, check whether the distilled water bucket is leaking and whether it is normal to be able to be inflated. Check whether the water level in the distilled water bucket exceeds one-third, which is not enough. Check the position of the distilled water bucket, which is lower than the table on which the Kjeldahl nitrogen analyzer is placed, and the pressure is not enough, can’t add water. Check whether the intake and liquid inlet pipes of the distilled water bucket are connected incorrectly, bubbles and noises will be generated in the wrong connection bucket. Check the drain valve, it should be closed.
5. The steamer of the Kjeldahl odometer does not heat and cannot produce steam, why?
If the Kjeldahl nitrogen analyzer can add alkali normally, but cannot heat out steam, it is determined that the heating wire may be burnt out. You can use a multimeter to measure the positive and negative electrodes of the heating wire. If the machine cannot add alkali normally, and there is no sound after turning on the machine, it is judged that the fuse is blown, and the position of the fuse is in the black shell 5 cm away from the power switch interface inside the machine.
6. The sound of the Kjeldahl nitrogen analyzer is loud when it is working, is it normal?
It is a normal phenomenon, and this is the sound of the air pump inside the Kjeldahl nitrogen analyzer.
7. The Kjeldahl nitrogen analyzer cannot add alkali, and there is no sound when adding alkali, why?
Check whether the alkali barrel is leaking and whether the machine can work normally only when it is inflated with air. If the Kjeldahl nitrogen analyzer is used for too long, crystallization will occur inside the alkali pipe, resulting in a decrease in the flow rate and no sound when adding liquid.
8. When the Kjeldahl nitrogen analyzer is working, smoke-like gas comes out from the top, what’s the matter?
Check whether the cooling water inlet faucet is open. If the cooling water is closed or the water volume is small, the steam from the digestive tube cannot be condensed, and the water vapor coming out of the Kjeldahl nitrogen analyzer looks like smoke.
9. When the Kjeldahl nitrogen analyzer is in use, the white tube in the digestive tube sucks back, how to solve it?
The Kjeldahl nitrogen analyzer stops working (the distiller stops heating), and the gas valve fails to close in time, which will cause sucking back. You can pierce some small holes in the white tube. The air valve is damaged, will not close, and will also suck back.
10. The Kjeldahl nitrogen analyzer will make a sound every 3~5 seconds during operation, is it normal?
This kind of sound is a normal phenomenon. When the Kjeldahl nitrogen analyzer is working, the distiller will continue to heat to generate the water vapor and consume water. The machine will automatically open the water valve to replenish water. The sound is the sound of the water valve opening and closing, which is a normal phenomenon.