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What are the common faults of the moisture meter?
- 2020-04-02-

Common faults of moisture meter:


If a black screen appears after opening, the possible causes are: no voltage; no power cord connected; fuse blown; instrument damaged.


When the repeatability of the measurement is poor, the possible reason is that the samples are not uniform, for example, they have different compositions. The more uneven the sample, the more samples are needed to obtain better reproducible results; the selected drying time is too short, extend the drying time or choose a suitable closed form "weight loss per unit time"; the sample is not completely dry (for example : Because of skinning), test mixed quartz sand for drying; the selected temperature is too high or the sample is oxidized and the drying temperature is lowered; the sample boils and continuously splashes to change the temperature, please clean the maintenance glass; when the maintenance glass is corroded, the heating amount If it can not be fully used, please clean the maintenance glass; the temperature sensor is contaminated or damaged. Please clean the temperature sensor; the console is unstable. Please use a stable console; the external environment is unstable (oscillation, etc.).


If the instrument cannot be heated after the initial test, the possible cause is that the drying unit is overheated and the thermal overload maintenance function is activated. For safe operation, the instrument is equipped with two layers of overheating maintenance: the drying unit has thermal overload maintenance (bimetallic sensor), which can close the heating unit. In this case, please contact your supplier.


The traditional plastic moisture meter generally adopts the oven drying method. The test of a sample requires two to three or even three or four hours. It also needs to be weighed by a balance and manually calculated to obtain the moisture value (water content) of the sample. The low efficiency of the moisture measurement of plastics in the oven method cannot adapt to the production needs of high-tempo enterprises.



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