9
Cobra.
OPERATING MANUAL
EDITION 01/2012
PART NUMBER DOC322851
2.4 USE IN AN EXPLOSION HAZARD AREA
2.4.1 CORRECT USE
2.4.2 EXPLOSION PROTECTION IDENTIFICATION
2.4.3 IDENTIFICATION MARK ‘X’
4HEUNITISSUITABLEFORWORKINGLIQUIDMATERIALSINACCORDANCEWITHTHECLASSIlCATIONINTO
EXPLOSIONCLASSES
As defined in the Directive 94/9/EC (ATEX 95), the unit is suitable for use in areas where
there is an explosion hazard.
II 2G IIB c X
CE: Communautés Européennes
Ex: Symbol for explosion protection
II: Unit class II
2: Category 2 (Zone 1)
G: Ex-atmosphere gas
IIB: Explosion class
c: Constructional security
X: Special notes (see chap. 2.4.3).
Cleaning
If there are deposits on the surfaces, the unit may form electrostatic charges. Flames or
sparks can form if there is a discharge.
Remove deposits from the surfaces to maintain conductivity.
Use only a damp cloth to clean the unit.
Max. surface temperature
The maximum surface temperature of the pump hangs not of the equipment (frictional
heat) separates from the opening conditions (warmed material).
Ignition temperature of coating material
Ensure that the ignition temperature of the coating material is above the maximum
surface temperature.
Ambient temperature
The permissible ambient temperature is +10 °C to +60 °C; +50 °F to +140 °F
Medium supporting atomizing
To atomize the material, use only weakly oxidizing gases, e.g. air.
Mechanical sparks can form if the unit comes into contact with metal.
In an explosive atmosphere:
Do not knock or push the unit against steel or rusty iron.
Do not drop the unit.
Use only tools that are made of a permitted material.
Surface spraying, electrostatic
Do not spray system parts with electrostatic (e.g. electrostatic spray gun).
X: The maximum surface temperature corresponds to the permissible material temperature.
This and the permissible ambient temperature can be found in the Technical Data.
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