Temperature analysis, maintenance and repair of constant temperature and Humidity Chamber

Maintain and overhaul it on time

1. Before the experiment, everyone should remove the residues in the casing, and the high-low voltage power distribution room should be removed at least once a year. In the case of cleaning, we can use a vacuum cleaner to suck out the dust in the room. Due to the direct contact between the shell and the outside world, the shell of the environmental Test Chamber is easily corroded and polluted. Therefore, the exterior of the housing needs to be cleaned once a year. In case of cleaning, it can be scrubbed with soap and liquid.

2. For the heating and cooling system in the constant temperature and humidity Test Chamber, you must be careful after each experiment. If there is any abnormal phenomenon, it needs to be repaired immediately. Rapid cooling and heating are not possible without preventing the experiment.

3. All parts in the box must not be loose, and must be tightened at intervals. The constant temperature and humidity Test Chamber accurately measures the length of capillaries: the return bronchus is not connected to the refrigeration compressor, and it is opened. Start the refrigeration compressor of the high-low Temperature Test Chamber. After the barometer reading is stable, record the reading at this time to clarify the basis for the new capillary length. Then stop the refrigeration compressor, remove the old capillary from the barometer, and replace it with a new capillary about 2m up and down. Start the refrigeration compressor of the high-low Temperature Test Chamber. The stable reading on the barometer at this point is generally higher than the previously recorded reading. Moderately cut off a section of new capillary.

Temperature analysis of inner box experiment

1. Due to the different thermal conductivity coefficients of the upper, lower, left and right walls of the personal studio, some have wiring holes, inspection holes, and detection holes, which cause partial heat dissipation and heat conduction, making the temperature of the shell uneven, and the radiation of the box wall Asymmetrical heat transfer with extensive flow compromises symmetric temperature.

2. The airtightness of the shell and the door is not tight. If the non-customized sealing tape has seams, door leaks, etc., it will endanger the temperature uniformity of the indoor space during work.

3. If the volume of the experimental target is too large, or the part or method of placing the experimental target in the high-low temperature test environment Test Chamber is not suitable, it will hinder the internal air convection and cause a large error in temperature uniformity. For example, placing the test object on the side of the trachea will seriously damage the wind circulation system, and the uniformity of natural temperature will be greatly damaged.