One of the conditions for use of high and low temperature low pressure test chamber: environmental conditions
a, temperature: 15 ° C ~ 35 ° C;
b, relative humidity: no more than 85%;
c, atmospheric pressure: 80kPa ~ 106kPa
d, no strong vibration around, no corrosive gas;
e, no direct sunlight or other direct radiation from cold and heat sources;
f, 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 box;
g, the influence of the magnetic field of the control circuit of the surrounding interference-free test chamber;
h, no high concentration of dust and corrosive substances around.
High temperature and low pressure test chamber use condition 2: power supply conditions
a, AC voltage: 220V ± 22V or 380V ± 38V;
b, frequency: 50HZ ± 0.5HZ.
High temperature and low pressure test chamber use condition three: water supply conditions
Use tap water or circulating water that meets the following conditions:
a, water temperature: not higher than 30 ° C;
b, water pressure: 0.1MPa ~ 0.3MPa;
c. Water quality: in line with industrial water standards.
High-low temperature and low pressure test chamber use condition four: test load conditions
The load of the test chamber should meet the following conditions at the time of the week:
a, the total mass of the load is not more than 80KG per cubic meter of studio volume
b, the total volume of the load is not greater than 5/1 of the studio volume
c. In any section perpendicular to the dominant wind direction, the sum of the load areas shall not be greater than 3/1 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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