Reliability test, 21 speaker – BeStar BMS2209-11C-08H04RW010 LF User Manual
Page 4
H
H
2.Sensitivity difference at 1kHz shall be within
±3dB from initial value after test.
Date:
Checked by:
Approved by:
Drawn by:
4
Rev.
6
A
Note
Drawn
Date
5
B
3
Page:3 of 5
2
1
Speaker
A
B
3.5 Temperature Cycle Test
Cycles 4
3.3 Low Temperature Test
Temperature -40±3°C
Duration 96hrs
3.1 Load Test
Power 0.8W(sine wave)
Duration 96hrs
3.4 Damp Heat
Temperature 40±2°C
Relative Humidity
90%-95%RH
Duration
96hrs
Notice:
1.All these tests above should be measured after leaving normal temperature
for 1hrs.
3.2 High Temperature Test
Temperature
+85
±3°C
Duration
96hrs
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3. Reliability Test
G
D
C
E
F
G
4
6
5
3
2
1
+25
-20
T(
°C)
+70
t (hrs)
1hrs
1hrs
1hrs
1 cycles
3.6 Drop Test
Height 100cm (in state of packing)
Times 10 (Drop onto hardwood board)
BMS2209-11C-08H04RW010 LF
张尚君
08/03/10
A
BMS2209-11C-08H 04RW010 LF
DRG NO: BS/TES01.940B
张秀琴
莫丽丽
张小红
08/06/10
B
08/06/10
张小红