Version:
09
Date:
January 28, 2011
Document: Sigma 120 Rev 09
Page 30 of 60
Date 1
e
release: April 15, 2003
Using the key, the acoustic alarm signal can be switched-off. The power
supply LED continues to be lighted-up in red.
If communication fails, the power supply LED will start blinking in red/green
and an acoustic alarm signal will be heard. In such case, it is not possible to
reset the alarm, and the signal will continue to be sounded until the
communication is put back in order or if the device is switched-off.
Test
If the key is pressed for 2 seconds, it can be used for testing. When this
key is pressed down for 2 seconds, all the LED’s should light up (the power
supply should light up in red) and the acoustic alarm should sound until this
key is released again.