BeStar BLS64-11-08H19.4W175 LF - Manual (Page 4)

REV. Drawn Date
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Date:
Note Approved by:
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Drawn by:
Checked by:
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4. Reliability Test
4.1 Load Test 1W
Duration use white noise EIA filter for
8hours
4.2 Heat test
Temp. +55
± 2° C
Relative humidity 20...50 %RH
Duration 8hrs
4.3 Low temperature test
Temp. -25
± 3° C
Duration 8hrs
4.4 Moisture temperature test
Temp. 40
± 2° C
Relative humidity 90...95 %RH
Duration 8hrs
4.5 Drop Test
Height 75cm
Direction x,y&z 3 axis
Time 6s
Dropped to 20mm thickness wooden boad contained packing
★Evaluation
After each test of 3.2to3.3,3.4,speakers should be measured after 2hrs
exposed in
normal temperature.
After each test,All specification must be satisfied in this condition.
SPL:deviation is ± 2dB of initial values
BLS64-11-08H19.4W175 LF
03.07.04 王善梅
B 09.10.15 汪凤声
Speaker
Page:4 of 6 DRG NO: BS/TES01.072B
BLS64-11-08H19.4W175 LF
王文邦
09.10.15
汪凤声
陶红仲
博 士 達