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

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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