Low temperature test chamber use conditions

Place the requirements of the site conditions for the use of the low temperature test chamber. Beijing Yashilin lists the following points, please check in detail:
First, the environmental conditions 1, the temperature 5 ° C ~ 40 ° C;
2. Relative humidity: no more than 85% RH;
3, atmospheric pressure 80kPa;
4. There is no strong vibration around the low temperature box;
5. Direct radiation without direct sunlight or other heat sources;
6. There is no strong airflow around; when the surrounding air needs to be forced to flow, the airflow should not be directly blown onto the cabinet;
7. There is no strong electromagnetic field around the low temperature test chamber;
8. There is no high concentration of dust and corrosive substances around.
Second, the power supply conditions 1, AC voltage: 220V ± 22V or 380V ± 38V;
2. Frequency: 50 Hz ± 0.5 Hz.
3. Water supply conditions Tap water or circulating water that meets the following conditions can be used;
1. Water temperature: not higher than 30 °C;
2. Water pressure: 0.1MPa~0.3 MPa;
3. Water quality: in line with industrial water standards.
Fourth, the load conditions The load of the test chamber should meet the following conditions:
1. The total mass of the load is not more than 80 kg per cubic meter of the working volume;
2. The total volume of the load is not more than 1/5 of the working chamber volume.
3. In any section perpendicular to the dominant wind direction, the sum of the load areas shall not be greater than 1/3 of the cross-sectional area of ​​the working chamber, and the flow of the airflow shall not be blocked when the load is placed.

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