BERTHOLD TECHNOLOGIES LB 6775, Operating Manual

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LB 6775 2 Safety Manual / Explosion Protection Manual
63039BA26, Rev. 03, 07/2018
21
Overview of explosion protection concepts
Design
LB 6775-..-BA-..-..-....
LB 6775-..-JA-..-..-....
Equipment LB 6775-..-..-..-..-1....
LB 6775-..-..-..-..-
2....
LB 6775-..-..-..-..-3....
Protection Concept not intrinsically safe
Housing (exclusive) Ex “d” (flameproof enclosure)
Ex “t” (dust ignitionproof)
Ex Marking for ATEX/IECEx installations
Gas
Area Classification Ex db IIC T1-T6 Ex db IIC T1-T5
Ambient Temperature
Min. -20 °C ≤ T
A
-60 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Dust
Area Classification Ex tb IIIC T80 °C Ex tb IIIC T100 °C
Ambient Temperature
Min. -20 °C ≤ T
A
-40 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Ex Marking for NEC installations
Gas
Area Classification Cl I, Zn 1, AEx db IIC T6…T1 Gb
Cl I, Zn 1, AEx db IIC
T5…T1 Gb
Ambient Temperature
Min. -20 °C ≤ T
A
-50 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Dust
Area Classification Zone 21, AEx tb IIIC T80 °C Db
Zone 21, AEx tb IIIC
T100 °C Db
Ambient Temperature
Min. -20 °C ≤
T
A
-40 °C ≤
T
A
Max.
T
A
≤ +60 °C
T
A
≤ +80 °C
Ex Marking for CEC installations
Gas
Area Classification Ex db IIC T6…T1 Gb Ex db IIC T5…T1 Gb
Ambient Temperature
Min. -20 °C ≤ T
A
-50 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Dust
Area Classification Ex tb IIIC T80 °C Db Ex tb IIIC T100 °C Db
Ambient Temperature
Min. -20 °C ≤ T
A
-40 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Entering Enclosure LB 6775-..-..-..-..-...0
LB 6775-..-..-..-..-
...1
LB 6775-..-..-..-..-...2
Entry Thread Size M16 x 1.5 M20 x 1.5 ½” NPT