Digital fire detection control panel
COMPACT LYON PLUS
11
FIRE PROTECTION MANUFACTURER
C / Compositor Wagner, 8 –P.I. Can Jardí 08191 - RUBÍ (Barcelona) ESPAÑA.
Tlf.: +34 935 862 690 –
1.5.1.- Addressable sensors ( A30 series)
1.5.1.1.- Addressable smoke sensors (A30XHA & A30XHA-S)
The addressable smoke sensors measure the smoke particle concentration
by unit of volume present in the atmosphere. If we designate by Y an un-
dimensioned parameter proportional to the smoke concentration, then Y
will have to be close to zero, and will be growing as the atmosphere is
contaminated.
The implemented dynamic processing algorithms in the control panel, use
the Y
alarm
value as level for setting off the Alarm. This preset level is at:
Y
alarm
= 40
This level can be manually modified from the control panel.
When the concentration of smoke exceeds the
Alarm Level
(the average must exceed Y
alarm
) the alarm for the sensor is activated.
Through the control panel, a level Y
dirty
(20) is set and when this is
exceeded the system warns us of the need to replace or repair the
sensor.
The Optical Smoke Sensors are based on the Tyndall effect created in
an optical chamber. The variation of the electrical characteristics in the
presence of combustion aerosols makes it suitable as smoke sensors.
The sensor element is formed by an optical chamber provided with an
infrared emitter and receiver. In the absence of smoke the intensity of
infrared caught by the receiver is null, due to the physical labyrinth
created between the two. When smoke is present, the infrared
reflections from the particles of the same cause the receiver to obtain a
certain luminance intensity, (Voltage value
proportional to the
level
of obscuration), all of which is controlled by the microprocessor system.
This sensor has a thermistor, acting as a temperature sensor, triggering at 60ºC, considerably
augmenting its response to fire.
An optical smoke sensor without a thermal element is also available, with reference
A30XHA-S
.
The
A30XHA
and
A30XHA-S
devices are compliant with EN 54-7 with the conformity mark awarded
by AENOR. The head and the base (interchangeable throughout the range of sensors) are made in
thermal resistant ABS.
The flashing of the red transparent LEDs indicates communication with the Control panel Lyon
system, and if they remain lit they indicate the alert status of the sensor.
Technical specifications A30XHA and A30XHA-S
Supply
24 – 35 V any polarity
Standby consumption
1 mA
Alarm consumption
5 mA
Indicator activation
Double red LED
Remote indicator output
Yes
Humidity
20% – 95% RH
Temperature
-10º + 50ºC
Sensitivity
According to EN 54-7
IP
IP40
Sensor A30XHA
(O temperature)
Sensor A30XHAS (optical)
)
