5. ADJUSTING SENSITIVITY
Sensitivity of the
CTSIR
detector in recognising sirens can be adjusted with the “sensitivity” trimmer.
The standard trimmer setting done in the factory is at half stroke which is quite enough in the majority of cases.
However, in installations where the
CTSIR
detector is installed a long way from the automatism or there is a great deal of acoustic pollution,
we suggest adjusting sensitivity with some real tests with sirens.
6. OPERATION
When turning the power on, the amber coloured LED flashes slowly meaning that the
CTSIR
detector is in the standby status.
The light of the amber coloured LED becomes fixed when the intensity of the sound received by the
CTSIR
detector is higher than the
threshold set with the “sensitivity” trimmer; after this it analyses the tone of the sound to see whether or not it is a siren.
When the
CTSIR
detector identifies the sound of a siren, the relay switches, supplying a closed contact; the amber coloured LED turns off
and the green LED turns on.
7. MAINTENANCE
Periodically check that the
CTSIR
detector is working properly as it provides a very important service, allowing emergency vehicles quick
access.
The
CTSIR
detector is not, however, a safety device, by which we mean it is not the only device a system has for evacuating areas in an
emergency. In fact, it must always been installed in conjunction with safety devices certified in accordance with the applicable standards.
8. TECHNICAL SPECIFICATIONS
Supply voltage:
9 ÷ 30V AC/DC
Input in stand-by:
80mA
Relay contacts:
N.O. 0.5A max
Detection system:
by means of microphone capsule
Reception frequency:
from 1Khz to 6.5Khz
Protection level:
IP 54
Dimensions in mm (wxhxd):
80 x 120 x 60
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Summary of Contents for QK-CTSIR
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