Pagina 14
1) Apply power using the proper switch. This switch should be fitted with protection fuses.
2) You will notice that some LEDs will light up in turn for about 20 seconds, so as to test the LEDs.
3) The COUNTDOWN begins that lasts about 90 seconds (warm up) afer this the unit is ready to detect.
4) By pressing the TEST button, you get the simulation of a gas leak and the unit carries out the following:
a) The Pre-alarm LED lights up calibrated to 13% LEL or 200 ppm (referred to CO) switching the relay the
buzzer will issue a low frequency sound
b) The Main alarm LED lights up calibrated to 20% LEL or 300 ppm (referred to CO) switching the relay.
The Main alarm LED starts flashing; the buzzer will issue a hight frequency sound
5) To complete the general test, issue gas from a pre-calibrated aerosol
6) If you want to simulate a zone fault, you only need to disconnect the return cable of the corresponding
se nsor.
-lights up the flashing LED and FAULT led of the MAIN ALARM led;
-the buzzer emits a continuous sound;
-the fault relay and the main alarm relay will switch.
Reconnect the return cable and press the RESET button to restore the functioning of the control unit.
If other problems arise, a specialised and/or authorised technician and/or the Distributor of BEINAT S.r.l. should be
contacted di rectly.
If the device does not start up.
Check that the 230V mains power is correctly connected. If powered by the battery, check that the 12Vdc power
is correctly connected.
If the Fault LED lights up.
Check that the connecting cables from the BX280/ax to the probes are intact, that the probes are properly
powered, and that the signal cable is correctly connected.
If the Over Load Probe LED lights up.
Check: that the power polarity has not been inverted, that no short-circuit is present,
that the probes were not damaged during installation, that no excessive current absorption is present.
If the Over Load Battery LED lights up.
Check that the connection cables are not short-circuited, that the polarity has not been inverted, or that the
battery is not damaged
If the Control Unit is repeatedly issuing an alarm.
Check that there are no gas leaks. If the alarm signal and the FAULT indicator light turn on together, check
the probes.
If the Control Unit is issuing an alarm and does not shut off the devices connected to it.
Check that the wiring is correct and that the jumper that carries power to the relay has been set properly. All
relays must be free from electrical power. Check the drawing of the connections.
If a 12VDC solenoid valve, which does not work well, is connected to the BX280-AX.
Direct connection of 12VDC solenoid valves or sirens to the BX280-AX is not permitted.
An external power unit must always be used.
The BX280-AX gives a max current of 50mA.
Troubleshooting and solutions before calling a technician
0
1
3
2
1,1
VD C
Vol tmeter
WARNING.
This measurement should
be performed in clean air.
12 V
+
+
Optional
3 2 1
Sensor 1
3 2 1
Sensor 2
R1 R2
1 2 3 4 5 6
Turning on the BX280-AX
