Burkert Type 2000 - Manual (Page 5)

5
Intended use
4.2. Sticker for the ex area
achtung: in ex-bereichen darf die oberfläche
nur mit einem feuchten tuch gereinigt werden
caution: in hazardous areas the surface
may only be cleaned with a wet towel
ii 2g c iic t4
ii 2d c t135°c Warning: not valid when non-ex devices added
Warning: potential electrostatic charging hazard
- see instructions
4.3. Temperature ranges in the ex area
max. ambient
temperature
medium
up to dn 25 above dn 25
T6 85°C -10 to +45°C -10 to +55°C
100°C -10 to +60°C -10 to +70°C
T4 135°C -10 to +95°C -10 to +105°C
10 20 30 40 50 60 70 80 90 100 110 120 130 0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
Temperature class T6
Temperature class T5
Temperature class T4
Medium temperature [°C]
Ambient temperature [°C]
Valves
up to
DN 25
Valves
larger
than
DN 25
4.4. Special conditions
To ensure potential equalization, ground the valve body to the pipe
system using an electrically conductive connection.
For use in Ex area zone (gas) 1 and 2,
zone (dust) 21 and 22, applies:
Danger!
danger of explosion caused by electrostatic charge!
In the event of a sudden discharge from electrostatically charged
devices or individuals there is a risk of an explosion in the Ex area.
• Implement suitable measures to ensure that there are no electro-
statically charges in the Ex area.
• Only clean the surface of the device by gently wiping with a
damp or anti-static cloth.
Observe temperature ranges in the Ex area (see “4.3”)!
english
Type 2000