B/fs 28 lf, Reliability test, Test method – BeStar B-FS 28 LF User Manual
Page 6: Siren, 程久生 徐金国 陈小东

5.4 Drop test
Height 75cm
(to 10mm thickness woodenboard)
Direction 3
Notice: All specification must be satisfied in this condition.
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08.08.20
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Drawn
Approved by:
徐金国
Drawn by:
Checked by:
Date:
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siren
DRG NO: BS/TEA01.159A
程久生
徐金国
陈小东
08.08.20
B/FS 28 LF
A
B
5.1 high temperature test
Temperature +70°c
Duration 96hrs
5.2 low temperature test
Temperature -20°c
Duration 96hrs
WOODEN TABLE
5.3 Humidity test
Temperature 40°C
Humidity 95%RH
Durarion 96hrs
all these tests above should be measured after leaving normal temperature for 2hrs
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5. Reliability test
E
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100cm
dB METER
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B/FS 28 LF
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AMPERE
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Siren
4. Test Method
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4
H
MICROPHONE
dB
METER
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100cm
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