Nederman 889 Ex Series, Руководство пользователя

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Series 889 Ex
EN
1 Product marking
Series 889 Ex is ATEX classified and marked:
II 2G Ex h IIB T60ºC…150ºC Gb
II 2D Ex h IIIC T60ºC…150ºC Db
-10ºC≤Ta≤60ºC
Nederman 19.HB08X
Part Explanation
II: From ATEX directive, Equipment group non-mining equipment.
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.
IIB: Equipment of Group II is intended for use in places with an explosive gas atmo-
sphere 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.
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.
Gb: 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.
Db: Equipment protection level Dc. Same as old 3D marking.
For explosive atmospheres, caused by mixtures of air and combustible dust, the
equipment does not contain any effective ignition sources in normal operation
and expected malfunctions.
-10ºC≤Ta≤60ºC Ambient temperature range.
Nederman 19.HB08X 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.
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