4
O P E R A T I O N
S i c u r g a s
IMPULSE RELAY, WITH CURRENT ACTIVATION,
TO CONTROL A NORMALLY OPENED VALVE WITH
MANUAL RESET (SWITCH IN UP POSITION)
The connection will ensure the interruption of the
gas inflow in case of gas concentration threshold
exceeding.
Sicurgas is provided with a TEST/SILENCING key, that allows to check the installation or to inhibit the
alarm. This key is activated through a cord for P11 methane gas (installed about 30 cm from the ceiling) or
through a button located on the body of P12 LPG (installed about 30cm from the floor).
To test the installation press the TEST/SILENCING key for 10 sec. In this way will be activated a control
procedure of about 30 sec., during which will be checked installation components.
Alarm inhibition is used instead to avoid an involuntary intervention of the detector, in fact Sicurgas sensor,
as all available on the market sensors, while being very selective can also participate for other substances,
for example: alcohol vapors, wine etc.
For example, during the use of wine while preparing food is possible, that the detector will enter in alarm
situation. To avoid this inconvenience press the TEST/SILENCING key for approx. 3 sec.
After having pressed the silencing key, for 10 minutes we will have a non-alarm situation: the buzzer
does not emits acoustic signaling, the relay returns in non-alarm position and the red and green led, are
flashing alternately to indicate the silence period; acting again on the switch during 10 minutes of the
USING MORE SICURGAS UNITS TO CONTROL
SEVERAL ROOMS WITH ONE GAS VALVE
Example of connection for several Sicurgas
detectors with stable relay that controls the same
normally closed valve NC and an external alarm.
The contacts must be connected in series.
Example of connection for several Sicurgas
detectors with impulse relay which controls the
same normally opened valve NA. The contacts
must be connected in parallel.
5
6
PLUG IN THE POWER SUPPLY (230Vc.a. 50Hz).
DEVICE CONTROL AND SILENCING ALARM
OPERATION
At the first detector switch-on and after any power
supply failure, Sicurgas enters into pre-heating
and a sensor stabilization phase that continues
maximum 3 minutes. During this period will flash
alternately the red and green led indicating that the
device is not ready yet for gas detection. After this
period just the green led will remain switched on.
test/
silencing key (cord for P11)
L
N
L
N
L
N
230Vc.a. - 50Hz
230Vc.a. - 50Hz
230Vc.a. - 50Hz
NA
NC
NA
