Nederman FlexFilter EX Single, Instruction Manual

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FlexFilter EX
EN
1 Product marking
FlexFilter EX is ATEX-classified and is marked according to the description:
II 3D Ex h IIIC T130ºC Dc
-10ºC≤Ta≤40ºC
Nederman 19.HB01X
Part Explanation
II: From ATEX directive, Equipment group non-mining equipment.
3D: From ATEX directive, Equipment category 3D intended for use with combustible
dust in zone 22.
h: The letter ”h” as specified in EN ISO 80079-36.
IIIC:
Equipment of Group III is intended for use in places with an explosive dust atmo-
sphere other than mines susceptible to firedamp.
Equipment of Group III is subdivided according to the nature of the explosive dust
atmosphere for which it is intended.
Group III subdivisions:
• IIIA : suitable for combustible flyings;
• IIIB : suitable for combustible flyings and non-conductive dust;
• IIIC : suitable for combustible flyings, non-conductive dust, and conductive
dust.
T130ºC The maximum surface temperature in degrees Celsius.
Dc:
Equipment protection level Dc. Same as ATEX directive Equipment category 3D.
For explosive atmospheres, caused by mixtures of air and combustible dust, the
equipment does not contain any effective ignition sources in normal operation.
-10ºC≤Ta≤40ºC Ambient temperature range.
Nederman 19.HB01X Certificate number. If the sign “X” is placed after the certificate number, it indic-
ates that the equipment is subject to specific conditions for safe use.
1.1 Special Conditions for Safe Use “X”
The FlexFilter EX is designed to be a part of a complete extraction system. A complete extraction system usu-
ally includes a vacuum unit, connected piping and a control system as described in this manual. For the FlexFil-
ter EX to function properly and fulfil necessary safety requirements as stated in the Declaration of Conformity,
the complete system must be assessed with regards to applicable safety standards and directives and comply
with all requirements described in this manual. The designer of the system as a whole, must guarantee the cor-
rect function of all interacting products or components and ensure that the complete system meets all neces-
sary safety requirements.
1.2 Type of Protection constructional safety “c”
Technical documentation contains the information required to maintain product safety.
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