First, the range of step-in constant temperature and humidity test chamber
This step-in constant temperature and humidity test chamber is suitable for performance reliability test of industrial products. The test box has a large temperature and humidity control range, and the performance indicators all meet the requirements of national standards GB2423.1-93, GB2423.2-93, GB2423.3-93, GB2423.4-93, and are applicable to GB2423.1~ 4 "Basic Environmental Test Specifications for Electrical and Electronic Products" in "Test A: Low Temperature Test Method; Test B: High Temperature Test Method; Test C: Damp Heat Test Method; Test D: Alternating Damp Heat Test Method", the product is subjected to high and low temperature Humid heat test.
Second, the step-in constant temperature and humidity test chamber installation site
In order to facilitate the heat dissipation and maintenance of the cabinet, the place where the equipment is installed must meet the following conditions:
1. The distance between the adjacent wall or object is 50CM.
2. In order to stably display the function and performance of the test chamber, the place where the annual temperature is 15~25°C and the relative humidity is less than 85% should be selected.
3. The ambient temperature of the installation site should not be changed drastically.
4. It should be installed on a level ground (the level is determined on the ground when installing).
5. It should be installed in a place without direct sunlight.
6, should be installed in a well-ventilated place.
7. It should be installed away from combustibles, explosives and high temperature heat sources.
8, should be installed in places with less dust.
9. Install as close as possible to the power supply.
Third, the step-by-step constant temperature and humidity test chamber performance characteristics
1, temperature adjustment range: -60 ° C ~ +150 ° C
2, humidity range: 30% ~ 98% RH (temperature is 25 ° C - 80 ° C)
3, power supply: AC380V
4, the total power: 13.5KW
5, cooling method: double air cooling
6, temperature fluctuation: ± 0.5 ° C (no load)
7. Humidity fluctuation: +2% -3% (no load)
8, temperature uniformity: ≤ ± 2.0 ° C (no load)
Fourth, walk-in constant temperature and humidity test box electrical installation
Please use the following methods for power distribution. Pay attention to the power supply capacity. Do not use more than one power supply at the same time to avoid voltage drop, affect the performance of the machine, or even cause downtime. Please use a dedicated circuit.
1. According to the test box incoming line power wiring, the voltage is 3φ4W 380V 50HZ
2. Applicable wire diameter is: (with cable length less than 4M) 4 m2
3. The variation of the power supply voltage should not exceed ±5% of the rated voltage (maximum allowable voltage is ±10%)
4. The power supply for the test product should not be connected to the power supply of the machine. Because the machine has been planned and designed, adding Other loads may result in excessive load.
5. Is there any damage to the wiring?
The above is the technical parameters of the step-in constant temperature and humidity test chamber. I hope that the above content can solve the practical problems for the new and old customers.
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