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1 Product marking
Series 888 Ex is ATEX classified and marked:
II 3G Ex h IIB T60ºC...150ºC Gc
II 3D Ex h IIIC T60ºC...150ºC Dc
-10ºC≤Ta≤40ºC
Nederman 20.HB09
Part
Explanation
II:
From ATEX directive, Equipment group non-mining equipment.
3G:
From ATEX directive, Equipment category GD intended for use with combustible gas in zone 2.
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.
IIB:
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.
IIIC:
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.
T60ºC...150ºC
The maximum surface temperature in degrees Celsius.
This is set as a range since it depends on the temperature of the media used.
Gc:
Equipment protection level Gb. Same as old 3G marking. For explosive atmospheres, caused by mixtures of air and gases,
the equipment does not contain any effective ignition sources in normal operation.
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
Certificate number.
20.HB09
* In ambient temperatures below 0 °C, observe the special instructions on
•
Chapter 6 Commissioning
•
Chapter 8 Decommissioning
Series 888 Ex
*
(freezing when using water)
EN
9
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