OPERATING DESCRIPTION
Signals
The front part of the device is pierced to facilitate contact between the
gas to be detected and the semiconductor-based sensor. The front of the
device is provide with three leds operating as follows:
LED
detector supplied
GREEN
YELLOW
detector failure
detector in alarm
RED
Push-button P1
Push-button P1 has the following functions:
1. Test function. By pressing the push-button for 4 seconds, the detec-
tor will emit a sound alarm and, upon releasing the push-button, the
test function will be activated offering the possibility of testing the
visual and sound alarms.
The test function includes the following steps:
Whereas, by pressing the push-button for 8 seconds at least, after the
first signal the detector will emit another sound alarm . The test function
includes the relay testing.
2. Alarm memory reset. To reset the internal alarm memory signalled by
On
with power
sensor or
condition
Activation of the TEST by a BEEP
Red led ON for 15 s
Yellow led ON for 15 s
End of TEST operations by a BEEP
Off
detector not
power supplied
detector
in full
working order
detector alarm
off
Flashing
detector under testing
or sensor being
reactivated
stored
alarm
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