Alternating damp heat Test Chamber is an experimental equipment used to simulate the stability and durability test of items in high temperature and high humidity environment. It can simulate the actual use environment under various humidity and temperature conditions to test the performance and durability of items in different environments.
Alternating damp heat Test Chamber is usually composed of heating system, refrigeration system, humidification system, control system, working room and feeding and discharging device. The heating system and the cooling system can heat or cool the air to maintain the set temperature; the humidification system can evaporate the water into humidity to maintain the set humidity. The control system can precisely control parameters such as temperature, humidity, and time to meet the needs of different experiments. The design and construction of the studio and the feeding and discharging device will also vary according to different usage scenarios and experimental requirements.
Constant temperature and humidity alternating Test Chamber is usually composed of heating system, refrigeration system
common problem
Humidity or temperature readings are inaccurate.
Unstable humidity or temperature.
The device is heating or cooling unevenly.
The device is leaking or the Water Tank is insufficient.
An error occurred in program operation.
Calibration method
Humidity or temperature calibration: place the hygrometer or thermometer in the alternating damp heat Test Chamber, and set the alternating damp heat Test Chamber to a known humidity or temperature. After waiting a period of time, compare the hygrometer or thermometer reading with the humidity or temperature reading displayed by the damp heat Test Chamber. If there is a difference, a calibration adjustment is required. Calibration can be done by adjusting the humidity or temperature calibration parameters in the controller.
Equipment uniformity calibration: place several hygrometers or thermometers inside the alternating damp heat Test Chamber, and set the alternating damp heat Test Chamber to a known humidity or temperature. After waiting for a period of time, compare whether the readings of each metering point are consistent. If there is a difference, a uniformity calibration adjustment is required. This can be achieved by adjusting how and where the heating, cooling and fans work, as well as adjusting the position of items inside the alternating damp heat Test Chamber.
Equipment Water Tank capacity calibration: fill the Water Tank in the alternating damp heat Test Chamber with water, and record the water capacity. Then set the alternating humidity and heat Test Chamber to a certain humidity or temperature, after measuring for a period of time, pour out the Water Tank and record the remaining water capacity. Subtract the previously recorded water capacity from the remaining water capacity to obtain the amount of water used by the alternating damp heat Test Chamber at that humidity or temperature. If the amount of water used is inconsistent with the capacity in the specification, a Water Tank capacity calibration adjustment is required. It can be calibrated by adjusting the Water Tank capacity parameter in the controller.
The north and south tides remind you: the alternating humidity and heat Test Chamber needs to be calibrated and maintained regularly. At the same time, it is necessary to regularly clean the interior of the equipment, check the performance and condition of heating, cooling, control, sensors and other equipment, and replace or repair problematic parts in time. In addition, it is recommended to carry out maintenance according to the operation manual of the equipment and the maintenance instructions provided by the manufacturer to ensure the long-term stable operation of the equipment.
Precautions
In the process of using the alternating humidity Test Chamber, the following points should also be paid attention to:
Reasonably arrange the placement of samples to ensure that the samples can be subjected to uniform temperature and humidity distribution.
Do not accumulate too many sundries or samples inside the alternating damp heat Test Chamber to avoid affecting the operation of the equipment and the accuracy of the data.
According to actual needs, reasonably select the humidity or temperature range and accuracy of the alternating damp heat Test Chamber to avoid inaccurate test data due to mismatching equipment parameters.
Before testing, it is best to preheat or precool the equipment to ensure that the equipment can reach the required temperature and humidity conditions.
During the use of the equipment, the humidity and temperature changes and test data are recorded in time, and analyzed and processed as needed.
In short, the alternating damp heat Test Chamber is a commonly used test equipment, but it is necessary to pay attention to the use and maintenance of the equipment during use to ensure the stability of the equipment and the accuracy of the test data.
