Service conditions for high, low temperature, and low pressure test chambers

One of the usage conditions for high, low temperature, and low pressure test chambers: environmental conditions

a、 Temperature: 15 ℃~35 ℃;

b、 Relative humidity: not exceeding 85%;

c、 Atmospheric pressure: 80kPa~106kPa

d、 There is no strong vibration or corrosive gas in the surrounding area;

e、 No direct sunlight exposure or direct radiation from other cold or heat sources;

f、 There is no strong airflow around, and when the surrounding air needs to be forced to flow, the airflow should not be directly blown onto the box;

g、 The influence of magnetic field on the control circuit of the interference free test box in the surrounding area;

h、 There is no high concentration of dust or corrosive substances in the surrounding area.

Condition 2 for the use of high, low temperature, and low pressure test chambers: Power supply conditions

a、 AC voltage: 220V ± 22V or 380V ± 38V;

b、 Frequency: 50HZ ± 0.5HZ

Condition Three for the Use of High, Low Temperature, and Low Pressure Test Chambers: Water Supply Conditions

It is advisable to use tap water or circulating water that meets the following conditions:

a、 Water temperature: not higher than 30 ℃;

b、 Water pressure: 0.1MPa~0.3MPa;

c、 Water quality: meets industrial water standards.

Condition 4 for the use of high, low temperature, and low pressure test chambers: Test load conditions

The load of the test chamber should meet the following conditions every week:

a、 The total mass of the load shall not exceed 80KG per cubic meter within the working chamber volume

b、 The total volume of the load shall not exceed 5/1 of the working chamber volume

c、 On any cross-section perpendicular to the prevailing wind direction, the sum of the load areas should not exceed 3/1 of the cross-sectional area of the working chamber at that location, and the load should not obstruct the flow of airflow when placed.

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