DEVICE DESCRIPTION
2
7
OPTIBAR 5060
www.krohne.com
04/2021 - 4003591803 - AD OPTIBAR 5060 Exia R03 en
2.3 Flammable products
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.
Operation outside the specified above standard atmospheric conditions is permitted only via risk
assessment of the user and additional measures, as necessary.
Operating conditions:
Outside of atmospheric conditions, the explosion protection according to directive
2014/34/EU (ATEX) – regardless of the zone assignment – is not applicable due to the lack of key
safety data.
2.4 Equipment category
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)
The process connection element is installed in the separating wall, which separates areas in
which instruments of category 2G or 1G are required. The electronics housing is installed in
hazardous areas requiring instruments of category 2G. The sensor is installed in hazardous
areas requiring instruments of category 1G.
Category 2G equipment (EPL Gb equipment)
The devices are installed in hazardous areas requiring equipment category 2G.
