Dräger VarioGard Notice D'utilisation page 34

Configuration
If the concentration at one or more transmitters exceeds an
alarm threshold:
Alarms A1, A2 and A3 are not
latching and cannot
acknowledged!
The LED (1) on the central unit
and on the transmitter concerned
flashes according to the particular
alarm; see table "Alarm states".
Alarm states (factory default setting)
Alarm
No power red
none green
A1 red
A2 red
A3 red
A4 red
34
be
1
ESC
VarioGard
LED
Display on the central unit e. g.:
If several transmitters are in alarm state at
the same time, all the transmitters in alarm
state will be shown on the display one
after the other.
The alarm relays are switched according to the particular alarm,

see table "Alarm states".
NOTICE
i i
Relays are designed as outputs. The normal state corresponds
with the selected wiring in the state "No alarm".
Acoustic Relay 1 Relay 2
alarm
no closed closed
no open
no closed
no closed closed
no closed closed
yes closed closed
Transmitter
68 ppm NH3
Relay 3 Relay 4
closed closed
open open open
open open open
open open
flashing open
flashing closed
4
I A1
Relay 5
closed
open
open
open
open
open
Dräger VarioGard