Product Marking A Ex 2Gd - Nederman ATEX Serie Manual De Instrucciones

EN A EX 2GD - Vacuum Cleaners
3.3

Product marking A EX 2GD

Product is ATEX classified and marked:
II 2G Ex h IIB T60ºC(T6) Gb
II 2D Ex h IIIC T60ºC Db
-10ºC≤Ta≤40ºC
Nederman 19.HB04 X
Part
II:
h:
IIB:
IIIC:
T60ºC(T6)
Gb:
Db:
-10ºC≤Ta≤40ºC
Nederman 19.HB04X
Special Conditions for Safe Use "X"
The vacuum cleaner must always be earthed when in use. Using a conductive hose for
compressed air can do this.
Maximum surface temperature depends on collected material.
The stationary vacuum cleaners may not be used to vacuum combustible material; they are
only for use with noncombustible dust. This is since they lack a protection system to limit
the effects of an internal explosion.
If the A EX model vacuum cleaner is to be part of a centralized vacuum system, such a
system must be designed and built according to applicable ATEX and local regulations. It is
the responsibility of the system designer to ensure that all necessary safety requirements
18
Explanation
Equipment group (non mining equipment).
The letter "h" as specified in EN ISO 80079-36.
Equipment of Group II is intended for use in places with an explosive gas
atmosphere other than mines susceptible to firedamp.
Equipment of Group II is subdivided according to the nature of the explosive gas
atmosphere for which it is intended.
Group II subdivisions:
• IIA, a typical gas is propane;
• IIB, a typical gas is ethylene;
• IIC, a typical gas is hydrogen.
Equipment of Group III is intended for use in places with an explosive dust
atmosphere 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.
The maximum surface temperature in degrees Celsius (temperature class).
Equipment protection level Gb. Same as old 2G marking.
For explosive atmospheres, caused by mixtures of air and gases, the equipment
does not contain any effective ignition sources in normal operation and expected
malfunctions.
Equipment protection level Db. Same as old 3D marking.
For explosive atmospheres, caused by mixtures of air and combustible dusts, the
equipment does not contain any effective ignition sources in normal operation.
Ambient temperature range.
Certificate number. If the sign "X" is placed after the certificate number, it indicates
that the equipment is subject to specific conditions for safe use.