The technical literature about the troubleshooting and solutions of the constant temperature and humidity test chamber is already an old thing, but because the constant temperature and humidity test chamber is a professional technology product and a high-end precision testing instrument, many users would rather Repair and other manufacturers come to the door to deal with it, and they will not solve it by themselves, because users lack professional skills and professional guidance. This chapter will focus on the humidity and heat system failures that users can solve by themselves in the constant temperature and humidity test chamber, helping you to malfunction in the test chamber. Can resume normal use in the fastest time.
1. Humidity display 100% or low humidity point, the humidity does not come
Self-solution 1: The wet and dry ball gauze hangs in the wrong position. The upper sensor is a dry ball and the lower sensor is a wet ball. Under normal circumstances, the gauze must be hung on the lower sensor, and the lower end of the gauze must be reliable Immersed in the water head sink, so that the wet ball gauze can reliably absorb water.
Self-solve solution 2: Wet ball gauze becomes yellow, or if it is used for too long, too much minerals accumulate on the gauze, resulting in a decrease in the water absorption performance of the wet ball gauze.
Can not absorb water, which makes the detected humidity inaccurate, causing the false appearance of high humidity;
Self-solution 3: No water in the wet bulb sink or the water level is low, and the gauze cannot absorb water, so check the following parts:
a. Observe whether there is water in the water level box beside the sink, if not, it may be damaged by the float;
b. The electromagnetic pump is damaged, use the voltage range of the multimeter to measure its resistance, if it is open, it will be damaged;
c. The gap replenishment timer is damaged and cannot replenish water normally
Second, the water tank is short of water
Self-solution 1: The water level of the water tank is not enough, you need to add water manually, pay attention to the water level mark when adding water, to prevent the water level from overflowing too high;
Self-solution 2: The floating ball of the water tank is damaged. The following picture is the display under normal conditions. If it is always on or off after the flip, the floating ball is damaged and needs replacement.
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