BERTHOLD TECHNOLOGIES LB 6775, Operating Manual

Page: 22 / 118

2 Safety Manual / Explosion Protection Manual LB 6775
22
63039BA26, Rev. 03, 07/2018
Detector Versions for Hazardous Locations: Divisions (NEC /CEC
installations)
Design
LB 6775-..-GA-..-..-....
LB 6775-..-JA-..-..-....
Equipment LB 6775-..-..-..-..-1....
LB 6775-..-..-..-..-
2....
LB 6775-..-..-..-..-3....
Location Class I, Division 1
Groups A, B, C, D
Protection Technique “XP“ (explosion proof)
Ambient Temperature
Min. -20 °C ≤ T
A
-50 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Location Class II, III, Division 1
Groups E, F, G
Protection Technique “DIP“ (dust ignitionproof)
Ambient Temperature
Min. -20 °C ≤ T
A
-50 °C ≤ T
A
Max. T
A
≤ +60 °C T
A
≤ +80 °C
Max. Surface Temperature +80 °C +95 °C
Equipment Temperature Class T6 … T1 T5 … T1
Entering Enclosure LB 6775-..-..-..-..-...2
Entry Thread Size ½” NPT
Electric parameters for the supply
Terminal 1+, 2– Supply and signal circuit (FSK)
max. input voltage U
max
(15-28 V
DC
)
IMPORTANT
The above ranges for ambient temperature ( T
a
) only apply to free-standing
mounted detectors. If the detector is not free-standing, this can lead to an ad-
ditional increase in surface temperature (e.g. by reflection of heat). In this case,
the ambient temperature (
T
a
) must be accordingly reduced in order to make
sure that the maximum surface temperature is not exceeded.