Altitude Test Chamber

High Altitude Low Pressure Test Chamber

ZH-LP-70A

1. Function.

1) Battery low pressure (high altitude) simulation test chamber, all tested samples are tested under negative pressure of 11.6kPa (1.68psi). The ambient temperature is stored at (20 ±5) ℃for 6 hours, if the battery has no leakage , no exhaust, no disintegration, no rupture and no fire, and the open circuit voltage of each experimental cell or battery after the test is not less than 90% of the voltage before the simulation test, which is qualified.

2) It’s designed for UL, IEC, UN, GB and other standard test requirements, to reach the low pressure storage state of the sample in a short period of time, can automatically control the test cycle, monitor the pressure change in the chamber throughout the process, and automatically terminate the test purpose;

3) High altitude simulation test, all tested samples are tested under low pressure.

2. Purpose.

1) The final test results require that the battery cannot explode or catch fire; in addition, the battery cannot smoke or leak, and the battery protection valve cannot be damaged.

2) Test whether other electronic and electrical products can work normally under low voltage, or be damaged.

3. Conforms to the standard

1) Meet the standard: UN 38.3 / UL 1642 / IEC62133 / UL2054 / GB 31241

4. Specification.

1) Internal dimensions: 700 x700 x700 mm(324L); or other smaller or bigger size, different size can be customized.

2) External dimensions appr: W920 xD900 xH1720 mm, subject to the actual product;

3) Inter layer: The inner box is divided into two layers, the first layer is 50 mm from the bottom, and the above is divided equally, with 2 sample shelves;

4) Door opening method: single door is opened from right to left;

5) Visible window: with visible window on the door, the whole piece of 19 mm thick tempered glass, size: W300 * H400mm;

6) Internal material: SUS#304 stainless steel industrial plate thickness is 5.0 mm, internal strengthening treatment, no deformation after vacuuming;

7) External material: cold-rolled Q235 steel plate, 1.2 mm thick, powder paint treatment; (off-white)

8) Hollow filling material: rock wool, good thermal insulation effect;

9) Door sealing material: high temperature resistant silicone strip;

10) Casters: Install movable casters and fixed feet cups, which can be fixed in position and pushed at will;

11) Control panel: The control panel is installed above the machine;

12) Structure: integrated; (pictured or design drawing)

13) Vacuum pump installation: The vacuum pump is installed on the upper part of the machine.

5. Vacuum system.

1) Sealing: The machine adopts high-density silicone sealing strip to seal at the door;

2) Pressure gauge: touch screen controller is used to display the instantaneous barometric pressure in the box; (pictured) 

3) Air pressure sensor: adopt diffused silicon pressure transmitter; (pictured)

4) Timing function: pressure keeping time, if you need to keep the pressure control after reaching the set pressure, just open the timer, the pressure will be automatically released after the time is up, the alarm will prompt after the pressure is completed, and closed if not needed;

5) Air pressure control method: automatic control type, it will automatically stop when starting pumping to reach the set value, and automatically start when it is lower than the lower limit, so as to work cyclically to compensate for leaking air pressure;

6) Pressure relief method: automatic pressure relief after the test, manual pressure relief when taking the product during relief process;

7) Air pressure range: 5.0KPa to 101.3KPa, absolute air pressure display, different air pressure display in different regions;

8) Air leakage rate: about 0.8KPa / hour;

9) Test air pressure: 11.6KPa low pressure;

10) Air pressure control accuracy: ±0.5kPa (≤5kPa), ±1KPa (5KPa～40KPa), ±2KPa (40KPa～80KPa);

11) Air pressure deviation: within 5%;

12) Pressure stabilization time: less than 5 minutes;

13) Air pressure control valve: KF25 high vacuum valve (pictured);