Automatic nitrogen analyzer operating procedures - taking KDN380F as an example
KDN-380F Automatic Nitrogen Analyzer Operating Procedures
1. Turn on the power of the instrument, and the instrument will automatically refill water until the refilling is completed.
2. Take a clean digestion tube, add 10ml of distilled water to it, and put it into the nitrogen analyzer splash tube sealing ring. Put the receiving liquid conical bottle on the tray.
1. Turn on the power of the instrument, and the instrument will automatically refill water until the refilling is completed.
2. Take a clean digestion tube, add 10ml of distilled water to it, and put it into the nitrogen analyzer splash tube sealing ring. Put the receiving liquid conical bottle on the tray.
3. Make sure that there is sufficient experimental solution in each solution barrel, and then turn on the tap.
4. Pull down the safety door. Click the "Add Alkali" button of the instrument, add alkaline solution, and wait for the countdown to end and the alkali addition is completed. Click the "Steam" button of the instrument to start the instrument preheating. Wait for the countdown to end and the distillation to be completed. It is best to preheat the instrument 2~3 times.
5. After the instrument is preheated, you can take down the digestion tube and start the distillation experiment.
6. Take out the cooled digestion sample tube, put it on the splash tube sealing ring, and put the conical bottle with boric acid and indicator mixture on the tray. Then, click the "Add Alkali" and "Steam" buttons in sequence as the preheating floor to start the distillation experiment.
7. After the distillation is finished, take out the digestion tube and pour out the waste liquid. Take out the receiving liquid conical flask and perform titration.
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