DEVICE DESCRIPTION
2
7
OPTIBAR 5060
www.krohne.com
04/2021 - 4005260702 - AD OPTIBAR 5060 Exta R02 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 1D equipment
The OPTIBAR * 5060 VGK5/6/D*A/W/V R/H/1/7/S/T*******(*) are installed in hazardous areas
requiring equipment category 1D.
Category 1/2D equipment
The electronics housing is installed in hazardous areas requiring equipment category 2D.
The process connection element is installed in the separating wall which separates areas in
which equipment category 2D or 1D are required. The sensor with the mechanical fastener is
installed in hazardous areas requiring equipment category 1D.
Category 1/3D equipment
The electronics housing is installed in hazardous areas requiring equipment category 3D.
The process connection element is installed in the separating wall which separates areas in
which equipment category 3D or 1D are required. The sensor with the mechanical fastener is
installed in hazardous areas requiring equipment category 1D.
Category 1/2/-D equipment
The process connection element is installed in the separating wall which separates areas in
which equipment category 2D or 1D are required. The sensor with the mechanical fastener is
installed in hazardous areas requiring equipment category 1D. The electronics housing is
installed in the safe area, away from the explosive atmosphere caused by dust.
Category 2D equipment
The OPTIBAR * 5060 VGK5/6/D*A/W/V R/H/1/7/S/T*******(*) are installed in hazardous areas
requiring equipment category 2D.
