BeStar BLS18-11-08H7.8 LF - Manual (Page 4)

H H
sensitivity difference at 1kHz shall be within
± 3dB from initial value after test.
Date:
Checked by:
Approved by:
Drawn by:
4
BESTAR ELECTRONICS INDUSTRY CO.,LTD
Rev.
6
A
B
Note Drawn Date
5
朱成兴
B
DRG NO: BS/TES01.547B
郭 敏
www.be-star.com [email protected]
3
王善梅
朱成兴
Page:3 of 5
2 1
Speaker
A
B
4.6 Drop Test
Height 100cm (in state of packing)
Times 10 (Drop onto hardwood board)
4.5 Temperature Cycle Test
Cycle 4
4.3 Low Temperature Test
Temperature -20 ± 3
℃
Duration 16hrs
4.1 Load Test
Power Pink noise with 500Hz low cut filter 1.0W/100hours
Duration 100hrs
4.4 Damp Heat
Temperature 40± 3
℃
Relative Humidity
90%-95%RH
Duration
16hrs
All these tests above should be measured after leaving normal temperature for 1hrs.
4.2 High Temperature Test
Temperature
+70 ± 3 ℃
Relative Humidity 20%-50%RH
Duration
16hrs
-20
1hrs
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4. Reliability Test
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4
BLS18-11-08H7.8 LF
6 5 3 2 1
06/02/09
06/02/09
BLS18-11-08H7.8 LF