Burkert 2730 Manuel D'utilisation page 8

3.1.2. Media in the ex area
If explosive media are used, this may create an additional
risk of explosion!
3.1.3. control unit in the ex area
The control unit may restrict use in an explosive atmosphere.
Follow operating instructions for control unit.
3.1.4. cleaning in the ex area
Test cleaning agent for approval in explosive atmosphere.
3.1.5. adhesive label for ex area
II 2G c T4 IP65/67
II 2D c T135°C
Nicht gültig für angebaute Geräte
Not valid for added devices
Fig. 1: Label Ex area
8
Warnung: Im Ex-Bereich Oberfläche
achtung: in ex-Bereichen darf die Oberfläche
nur mit einem feuchten tuch gereinigt werden nur mit feuchtem Tuch reinigen
Warning: In Hazardous Areas the surface
c autiOn: in hazardous areas the surface
may only be cleaned with a wet towel may only be cleaned with a damp cloth
english
Type 2730 / 2731 / 2731K
Basic safety instructions
3.1.6. Temperature ranges in the ex area
medium (seat seal ptfe)
max. t
environment
≤ dn 25
T6 85 °C -10 - +45 °C
T5 100 °C -10 - +60 °C
T4 135 °C -10 - +95 °C
Tab. 1: Temperature ranges Ex area
Temperature class T4
140
130
120
110
Temperature class T5
100
Temperature class T6
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70
Medium temperature [°C]
Fig. 2: Temperature ranges Ex area
> dn 25
-10 - +55 °C
-10 - +70 °C
-10 - +105 °C
Valves ≤ DN 25
Valves > DN 25
80 90 100 110 120 130