Gas Concentration Display In Normal Mode; Configuration; Factory Default Settings - Dräger VarioGard Instrucciones De Uso

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 concentra-
tion 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.
28
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 the first 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 according to
table on Page 29.
Dräger VarioGard