Precautions for Micro Moisture Tester



Precautions for Micro Moisture Tester:

1. During normal measurement, each 100 ml of reagent can react with no less than 1.5 grams of water. If the measurement time is too long and the reagent sensitivity decreases, replace the electrolyte.

2. If strong bubbles are released or the electrolyte is contaminated to a light reddish-brown color during electrolysis in the cathode chamber, the blank current will increase, the measurement linearity will decrease, and the time to reach the endpoint will be prolonged. In this case, replace the electrolyte promptly.

3. If the electrolysis time exceeds half an hour and the instrument is still not stable, stop stirring and check whether obvious brown iodine is produced under the platinum mesh below the electrolysis electrode. If not, or if very little iodine is produced, replace the electrolyte.

4. To ensure smooth disassembly of each part of the electrolytic cell bottle, loosen the ground glass joints (including electrodes, drying tube, sample injection stopcock, etc.) at least once a week.

5. The drying tube contains indicating silica gel, mainly used to absorb moisture in the air inside the electrolytic cell. Replace it promptly when discoloration is observed to avoid an increase in blank current.

6. When replacing the electrolyte, do it quickly because the special ceramic semipermeable membrane under the electrolysis electrode is prone to moisture absorption, which may prevent the instrument from reaching the endpoint for a long time. Rinse the cathode chamber several times with new electrolyte, then inject new electrolyte and shake a few times until no color change occurs before installing the cell bottle. If the electrolytic cell bottle is heavily contaminated, clean it with acetone, methanol, etc., especially the inner and outer platinum meshes of the electrolysis electrode and the two platinum claws of the measuring electrode. Clean them thoroughly, then dry in an oven at 80°C for 1 hour, allow to cool naturally, and then replace with new electrolyte.

7. It is recommended to use the dedicated electrolyte provided by our factory. Using other brands of electrolyte may result in insufficient accuracy, decreased sensitivity, and prolonged time to reach the endpoint. Any abnormal instrument performance due to the use of other brands is not our responsibility.

8. The working environment for the micro moisture tester must be free of corrosive gases, avoid direct sunlight, and the 220V power supply must have a reliable ground wire. It is best to connect an AC voltage stabilizer.

9. The electrolyte should be stored at a temperature preferably below 8°C. In summer, it can be stored in a refrigerator at constant temperature. The shelf life is more than half a year. Use as needed and avoid direct sunlight.