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OPTIBAR LC 1010
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
= -20...+60°C / -4...+140°F and P
atm
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, the explosion protection according to directive 2014/34/EC
(ATEX) – regardless of the zone assignment – is not applicable due to the lack of key safety data.
2.4 Device 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 device is installed in hazardous areas requiring equipment of category 1G.
Category 1D equipment
Category 1D equipment
Category 1D equipment
Category 1D equipment
The devices are installed in hazardous areas requiring equipment category 1D.
2.5 Types of protection
The pressure transmitter is designed with protection type intrinsic safety, protection level "ia"
according to EN 60079-11.
The marking is:
II 1G Ex ia IIB T4 Ga
II 1G Ex ia IIB T4 Ga
II 1G Ex ia IIB T4 Ga
II 1G Ex ia IIB T4 Ga
II 1D Ex ia IIIC T135
II 1D Ex ia IIIC T135
II 1D Ex ia IIIC T135
II 1D Ex ia IIIC T135°C Da
The marking contains the following information:
The marking contains the following information:
The marking contains the following information:
The marking contains the following information:
II II II II
1 1 1 1
G G G G
D D D D
Ex ia
Ex ia
Ex ia
Ex ia
IIB
IIB
IIB
IIB
IIIC
IIIC
IIIC
IIIC
T4 T4
T4
T4
T135°C C C C
T135
T135
T135
Ga
Ga
Ga
Ga
Da
Da
Da
Da
Table 2-1: Types of protection
11/2020 - 4007640202 - AD OPTIBAR LC 1010 Ex ia R02 en
C Da
C Da
C Da
Explosion protection, group II
Equipment category 1
Gas explosion protection
Dust ignition protection
Intrinsically safe, level of protection "ia"
Gas group, suitable for gas groups IIB and IIA
Dust group, suitable for dust groups IIIA, IIIB and IIIC
Temperature class, suitable for temperature classes T4...T1
Maximum surface temperature 135°C / 275°F
EPL, suitable for zone 0
EPL, suitable for zone 20
www.krohne.com
DEVICE DESCRIPTION
= 0.8...1.1 bar / 11.6...15.9 psi.
atm
2
5
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