Configuration; Factory Default Settings - Dräger VarioGard Notice D'utilisation

Configuration

The transmitters connected to the system bus continuously monitor
the gas concentration in the ambient air.
Communication between the transmitters connected and the

central unit is via the system bus cable.
The LED on the central unit lights up green when there is no alarm

and no fault present.
The contrast of the display can be adjusted in measuring mode with
the keys and .
CAUTION
!
The gas inlet to the transmitters must not be obstructed in
order to ensure accurate measurement.
3.1.1 Gas concentration display in normal mode
Display on central unit:
LED shows steady green light
Press the or key.

Display A: the current

concentration at transmitter 1
is displayed.
Display M: the mean value of the

concentration is displayed.
The concentrations at other transmitters
connected to the system bus can be
queried by pressing the or
again.
32
Dräger VarioGard
Transmitter 1
20.9 % by vol. O2 I
Transmitter 2
18 ppm CO I
keys
4 Configuration
To individually configure a device different to the factory default settings,
use a PC and the VarioControl software (see the Technical Handbook).
4.1

Factory default settings

On initial start up, the system operates with the basic factory settings:
The emergency power supply connection and the alkaline batteries

of the central unit are not monitored.
Mean values are calculated over a period of 15 minutes.

Alarm threshold settings for the different transmitters are according

to the table on page 33.
Dräger VarioGard