BeStar BLS77-2-08H29 LF - Manual (Page 4)

REV. Drawn Date
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Note Approved by:
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DRG NO: BS/TES01.778A
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BLS77-2-08H29 LF
BLS77-2-08H29 LF
4.1 Load test
Input Power 0.8W,white noise
Duration 96hrs
4.2 Heat test
Temperature +55
± 3°C
Duration 96hrs
4.3 Cold test
Temperature -25
± 3°C
Duration 96hrs
4.4 Temperature change( shock )
Low Temperature -25
± 3°C
High Temperature +55
± 3°C
Dwell time each temperature 30min
Transfer time from lower to upper temperature<10s
Cycles 100
4.5 Moisture Test
Tempeature +40
± 2°C
Humidity 92
± 2%(RH)
Duration 96hrs
4.6 Drop test
Surface(floor) concrete or steel
Height 80cm
Direction X,Y&Z 3axes
After the test,all electronic and acoustic characteristic should be satisfied with the
specification. SPL: Deviation is of 2dB of initial value.
4. Reliability Test
2012/03/10 汪凤声
张秀琴
王 平
汪凤声
2012/03/10