Technical specifications of sand and dust test chamber:
1. Temperature range RT ～ + 70 ℃;
2. Temperature uniformity ≤2 ℃;
3. Temperature fluctuation ≤ ± 0.5 ℃;
4. Nominal wire diameter of metal screen: 50μm;
5. Nominal spacing between lines: 75μm;
6. Airflow speed ≤2.5mS;
7. Continuously blowing dust to choose any time setting, time range 0-999 hours;
8. Dosage of talc: 2kgm3 ～ 4kgm3;
9. Dust drying talc powder, Portland cement, etc. for test;
10. Control execution system: Imported programmable time controller (Admiralty-Moeller) is adopted to effectively ensure that the test runs according to the standard
11. Equipped with vacuum pump to execute the vitality parts. (Vacuum meter, gas flow meter, quick interface) Note (excluding vacuum pump);
12. Use ambient temperature + 15 ℃ ～ 35 ℃;
13. Use relative humidity 45% ～ 85% RH;
14. Standard configuration 1, observation window 2, test lead hole 3, moisture-proof lighting;
15. Safety device leakage and power failure protection, overload fuse protection, fan overheat protection;
16. Sockets with corresponding dust-proof electrical plugs can be equipped in the test work space;
17. Executive standard. (GB-4208-93);
18. The power supply used in the sand and dust test chamber is AC380V ± 10% 50Hz.
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