Addressable Sensors ( A30 Series); 1.- Addressable Smoke Sensors (A30Xha & A30Xha-S) - Cofem COMPACT LYON PLUS Manual

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 value as level for setting off the Alarm. This preset level is at:
alarm
Y = 40
alarm
This level can be manually modified from the control panel.
When the concentration of smoke exceeds the Alarm Level
(the average must exceed Y
Through the control panel, a level Y
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
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
Standby consumption
Alarm consumption
Indicator activation
Remote indicator output
Humidity
Temperature
Sensitivity
IP
Digital fire detection control panel
COMPACT LYON PLUS
) the alarm for the sensor is activated.
alarm
(20) is set and when this is
dirty
proportional to the
FIRE PROTECTION MANUFACTURER
C / Compositor Wagner, 8 –P.I. Can Jardí 08191 - RUBÍ (Barcelona) ESPAÑA.
Tlf.: +34 935 862 690 – cofem@cofem.com
level
Sensor A30XHAS (optical)
)
24 – 35 V any polarity
1 mA
5 mA
Double red LED
Yes
20% – 95% RH
-10º + 50ºC
According to EN 54-7
IP40
– www.cofem.com
Sensor A30XHA
(Optical + temperature)
11