Water requirements for high and low temperature humid heat alternation test chamber

High and low temperature damp heat alternation test chamber is suitable for aerospace products, information electronic instruments and meters, materials, electricians, electronic products and various electronic components to test their performance indexes under high and low temperature or damp heat environment High and low temperature humid heat alternation test chamber because of the large water humidification particles, if humidity is required for a long time, then the service life of the humidity sensor will be affected In the relevant water requirements regulations of high and low temperature humid heat alternation test chamber, purified water must be used, for two reasons: First of all, the high and low temperature damp heat alternation test chamber has large humidification particles with water If there is a requirement for humidity for a long time, the service life of the humidity sensor will be affected (humidity sensor: generally divided into capacitance sensor and Honeywell sensor (this is better), but some of their PCB circuits are not made of water-proof material or anti-oxidation material Poor water quality will cause short circuit of humidity sensor or impurities due to poor water quality, which will block humidification pipeline and cause short circuit of heating pipe of humidification barrel after a long time Secondly, there is a water level switch in the humidification barrel of the high and low temperature damp heat alternation test chamber The middle of the float of the water level switch is a magnetic rod, and the float is not made of the imitative oxidation material Therefore, for a long time, or often without water change, the water level switch will be short circuited, which will cause the phenomenon of not being able to humidify or always humidifying This is not conducive to the majority of customers to complete the experimental steps, resulting in an immeasurable loss of experimental interruption According to the above reasons, Donglu instrument reminds users to remember that pure water must be used to avoid loss in the high and low temperature humid heat alternating test chamber during the test process; especially for customers who often use humidity or do high temperature and high humidity, please clean the water circuit and replace the pure water in time half a month or after a series of tests to extend the service life of the machine.