Reliability test, Piezo sounder – BeStar BPT6012H15.5W080 LF User Manual
Page 5
3. Reliability test
3.1 Dry heat test
Storage Temperature +85 C
Duration 96hrs
Recovery period 1 hrs
3.2 Cold test
Storage Temperature -40 C
Duration 96hrs
Recovery period 1 hrs
3.3 Resistance to temperature cycling
Low temperature -40 C
High temperature +85 C
Rate of temperature change 3 C/min 0.6 C/min
Number of cycle 200
Duration of exposure 1 hrs
Recovery period 4 hrs
During the test,the piezo is powered and gives out a 30seconds audible alarm signal at 105dB with a
pause of 10 minutes between each sounding period
3.5 Vibration Test
Vibration Frequency
10~55Hz
Amplitude 1.53mm
Duration 2hrs each of 3 axis
3.6 Resistance to drop on concrete floor
Surface concrete floor
Height 2m
Number of tests 2 in each 6 directions
Number of units 2
3.7 Pull test
The electrical connectors must be soldered directly on the piezo.
The wires must be very flexible,supple.Using the tensionmeter tested the piezodisc and
membrance more than 20 N,pull force of the membrance and crust more than 20N too.
Notice: All specification must be satisfied in this condition.
SPL: allowable deviation 5dB of the initial value after testing
3.4 Damp heat test
Storage Temperature +40 C
Storage Humidity 95 3%
Storage time 96hrs
REV.
Drawn
Date
6
5
A
Piezo Sounder
Date:
Note
Approved by:
4
Drawn by:
Checked by:
3
2
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李红元
邱 俊
赵
峥
赵
峥
BPT6012H15.5W080 LF
BPT6012H15.5W080 LF
09/03/28
DRG NO: BS/TEP01.668A
09/03/28
A
博 士 達