BeStar BUS85-112PT - Manual (Page 3)

alarm
20
cm
(quiet mode)
220VAC
We measured sigle SPL of DF1027A ( low-frequency signal generator ).
SPL of DF1027A=107dBA
SPL of alarm is 85dBA when the speaker's output is 0Vpp.
SPL of alarm is 112dBA when the speaker's output is 8Vpp.
So the SPL of alarm is form 85dBA to 112dBA adjust.
In this mode the siren has a current consumption of max.1200mA.
DF 1027A
low-frequency signal
generator
(0--8Vpp/1kHz sine
signal )
speaker
6Ω
dB meter
120cm
power supply 12VDC
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Note
陈小东
Date: 12/03/30
Page:05 of 07
Smart Alarm
付秋萍
A 付秋萍
12/03/30
BUS85-112PT
BUS85-112PT
DRG NO:BS/TEA01.351A
4.Test Method
The alarm is located in a free field or an equivalent fully anechoic
room. The microphone is directed toward the alarm sound output
openting along the zero degree axis and at the distance
specified by the test requirement.
alarm
1
.2m
1.2m