Environmental Test Chamber
Application:
The equipment will conduct dustproof test on electrical, electronic, automotive and other products, to evaluate the performance the product.
Standard Compliance:
◆GB QCT729-2005 Technical Conditions for Automotive AC Generator.
◆QC/T413-1999 Basic Technical Conditions of Automotive Electrical Equipment.
◆GB4208-93Dustproof Test Method.
◆GB2423.37-89 Sand and Dust Test Method.
◆GJB150.12 Sand and Dust Test.
◆GB10485Dustproof Test Method.
Materials of the equipment:
◆The sand and dust test chamber is composed of work chamber body, dust blowing circulating air duct, vacuum system, dust recovery device, electric control system and safety protection system.
◆The equipment is overall (rotary) structure, the fan is in the middle and lower part of the equipment, the rotary circulating pump/air duct connecting test device and sand inlet device are on the uptake of the test chamber, the temperature control system is located on the back of the chamber and the instrument control system is on the right lower part of the test chamber.
◆There is funnel-type device under the work chamber, and electromagnetic vibrator is installed on the funnel wall, to meet the requirements of sand and dust recovery.
◆There is observation window on the gate of the chamber. The test chamber is of single gate and adopts sealing by double-layer ageing resistant silicone rubber.
◆The outer wall material of the test chamber is conduct with spray coating after rust prevention on cold-rolled steel plate. The inner wall is processed and formed by SUS304 stainless steel plate, and the frame is conducted with spray coating after rust prevention on 5#channel steel.
◆Sand and dust air circulating device: circulating air duct and ventilator.
Technical parameters:
Output voltage |
0~ 50V |
±0.5% |
Output current |
0~300A |
±0.5% |
Output power |
0~ 6000W |
±0.5% |
Excitation current |
0~10A |
±1% |
Motor rotating speed |
0~22000RMP |
±1% |
Main technical indicator of the test box:
|
800×800×900(D×W×H) |
Temperature range |
RT+10℃~+60℃ |
Test dust concentration |
The talcum powder is used as dust, which can enable the dust to uniformly suspend in the test chamber via circulating air, the dry talcum powder is of 2-4kg/m3 , the frequency of use shall not exceed 20 times. The dry talcum powder can pass the metallic square hole sieve with the width of the sieve hole of 75um and the diameter of the sieve hole of 0um~100um. |
Excitation current |
0~10A |
Continuous dust blowing time |
0~999h(adjustable) |
Airflow velocity | ≤2m/s |
Diameter of the spray pipe |
continuous and periodically blow dust |
Time of vibration |
0~9999min(adjustable) |
Test voltage |
380V |
Total power |
about 4KW |
Vacuum system |
Equipped with pressure gauge, air filter, pressure regulating triplet and connecting pipe |