Fire & Security Products
Siemens Building Technologies - 03.2012
SiemensUserMan-v03
20
The
GENERAL
ALARM relay remains unoperative for explosive gases.
5.2 Manual rearming of the different levels
WARNING, PRE-ALARM
and
ALARM
levels and their relays will be memorised by the module line. They
can be manually rearmed by pressing
ACOUSTIC INHIBITION
push button which, for explosive gases
detection, will carry out the function of alarm manual rearmament.
The manual rearming will be carried out just if the concentrations that activate each one of the levels are
lower than the programmed levels.
FUNCTIONING
One of the following messages
“Warn.”, “Preala”
or
“Alarm”
will be displayed.
1. Press
ACOUSTICS INHIBITION
.
The internal acoustic of the module line, the state memory and the correspondent relay manoeuvre will
be cancelled just if the level which activated it is lower than the one programmed.
5.3
Displayed messages
“Warning”
(bottom-right line of the display)
This indicates that the module line has detected the first programmed level. This level is just of infor-
mation because it has not got manoeuvre.
“Preala”
(bottom-right line of the display)
“Ven1”
(top-right line of the display)
This indicates that the module line has detected the programmed prealarm level and that electrovalves
of area are activated.
“Alarm”
(bottom-right line of the display)
“Goff”
(top-right line of the display)
This indicates that the module line has detected the programmed alarm level and that the general
electrovalve has cutted the gas supply.
