Requirements for water quality in high and low temperature humidity test chamber experiments
In fact, generally speaking, tap water can be used in the high and low temperature humidity test chamber to achieve the humidity effect, but if the tap water is used for a long time, it is easy to form scale in the water pipe, and the impurities in the tap water will be adsorbed to the surface of the product. , The water tank will also be dirty.
In addition, the humidification particles of ordinary water are relatively large. If the humidity test is carried out for a long time, it will affect the service life of the humidity sensor and may cause the humidity sensor to short-circuit. Therefore, we use high and low temperature humidity test chamber experiments to have strict water quality requirements, using pure water or distilled water. (The amount must be more than 20L each time) or water with conductivity below 10μs/cm, try to ensure that the purity of this water source is as clean as possible! (The water supply tank is located at the lower part of the test box panel, which is convenient for supplementing water supply and is accompanied by water recycling cycle Use the device to save water!)
Of course, we can also change the tap water frequently when we use the high and low temperature humidity test chamber for testing, so we need to pay more attention to daily maintenance and maintenance.