DESCRIPTION OF DISPLAY
The data exchange for each probe connected happens every 4 seconds.
The device is equipped with a display backlight color to facilitate the recognition of the state of the probe
monitored.
The green display shows
an absence of leakage of
gas, normal condition.
The
blu
display
shows
the
percentage % of
oxygen.
normal
condition
The display shows with
red color a concentration
of explosive gases in %
LEL
greater
than
a
threshold alarm.
The display shows
with red color a
concentration
of
toxic
gases
ppm
greater
than
a
threshold alarm.
The yellow display shows
a fault of one or more
probes.
1
Pre-Allarme
st
2
Pre-Allarme
nd
Main alarm
Legend:
< Oxygen deficienty
> Excess Oxygen
<
19.9 %
>
21.9 %
<
19.5 %
>
22.5 %
<
18.5 %
>
23.5 %
Alarm thresholds, referring to oxygen
00
LEL
20.6
300
ppm
20
LEL
FAU
000
LEL
ppm
1 2 3
Identification
of the Sensors
(probes)
A row of LEDs numbered
called PROBES has been fitted on the device. These LEDs are lit with a 4
seconds frequency representing the connected probes, and indicate the probe being read on the display.
from 1 to 3 and
In case of alarm
: the LED that represents the probe stops for about 15 seconds. This is done in order to identify the
relevant zone or zones easily. The gas percentage measured by the probe appears on the display and is maintained
for 15 seconds. On the next pass, the LED (probe) will be maintained again and the alarm will be issued.
The display will show the “
” (Fault) fixed indication, and the buzzer will issue a continuous sound until:
FAU
In case of fault
: the LED of the relevant probe starts blinking and remains lit.
1) The repair has been carried out;
2) The relevant probe has been disabled using the micro-switch.
from No. 1 to No. 3
