Soil moisture recorder use notes - Database & Sql Blog Articles

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First, the determination of soil moisture recorder

The standard count of the soil moisture recorder is a reference frame for calculating the count ratio, and its accuracy has a great influence on the accuracy of the final measurement result. In general, it is not necessary to consider the effect of radioactive decay on the standard count. However, the standard count has a certain relationship with the temperature. Therefore, when used in an environment with large temperature difference, the soil moisture recorder needs to be calibrated, and the corresponding standard count is set according to the use environment. In addition, the standard count of the instrument is greatly affected by the environment in which the instrument is placed, so it should always be performed in the same environment when counting the standard. The calibration requires no foreign matter to exist within 2m of the instrument.

Second, to prevent the interference of condensate in the soil moisture recorder

Condensate in the instrument tube is caused by changes in temperature. When used, it is often found that there are water droplets on the inner wall of the tube, especially in the morning. The interference with the measurement results in the presence of condensed water is very large. Therefore, it is necessary to check before the measurement, and it is found that this situation should be processed in time to ensure the accuracy and reliability of the measurement results.

Third, do a good job of protection

If the work is carried out in full accordance with the operating regulations, the radiation damage of the soil moisture temperature measuring instrument to the human body can be ignored. But there are a few things to pay special attention to. First, the probe must never be placed outside the instrument in an unmeasured state (the soil moisture recorder is placed on the catheter at the end). Second, the protective part of the lower part of the instrument should not be opened or replaced. Third, the soil moisture recorder should be banned from the last trained personnel. The instrument should also be kept in a safe place to prevent children from approaching and playing.