KROHNE OPTIBAR PM 5060 C Ex ia EN - Manual (Page 7)

DEVICE DESCRIPTION
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7
OPTIBAR 5060
www.krohne.com 04/2014 - 4003591801 - AD OPTIBAR 5060 Ex ia R01 en
2.3 Flammable products
Atmospheric conditions: Atmospheric conditions: Atmospheric conditions: Atmospheric conditions:
An explosive atmosphere is a mixture of air and flammable gases, vapours, mists or dusts under
atmospheric conditions. It is defined by the following values
T
atm
= -20...+60°C / -4...+140°F and P
atm
= 0.8...1.1 bar / 11.6...15.9 psi.
Outside of this range, for most mixtures no key figures are available for the ignition behaviour.
Operating conditions: Operating conditions: Operating conditions: Operating conditions:
Outside of atmospheric conditions you cannot apply to the explosion protection according to
directive 94/9/EC (ATEX) – regardless of the zone assignment - due to the lack of key safety data.
2.4 Equipment category
Category 1G equipment (EPL-Ga equipment) Category 1G equipment (EPL-Ga equipment) Category 1G equipment (EPL-Ga equipment) Category 1G equipment (EPL-Ga equipment)
The devices are installed in hazardous areas requiring equipment category 1G.
Category 1/2G equipment (EPL-Ga/Gb equipment Category 1/2G equipment (EPL-Ga/Gb equipment Category 1/2G equipment (EPL-Ga/Gb equipment Category 1/2G equipment (EPL-Ga/Gb equipment)
The process connection element is installed in the separating wall, which separates areas in
which equipment of category 2G or 1G are required. The electronics housing is installed in
hazardous areas requiring equipment of category 2G. The sensor is installed in hazardous areas
requiring equipment of category 1G.
Category 2G equipment (EPL-Ga equipment) Category 2G equipment (EPL-Ga equipment) Category 2G equipment (EPL-Ga equipment) Category 2G equipment (EPL-Ga equipment)
The devices are installed in hazardous areas requiring equipment category 2G.
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