Baumer LFFS - Ex-Certification Conditions; Ex ia IIC T5, ATEX II 1 G Installation

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Installationsanleitung 5850-020www.baumer.com/process
Ex ia IIC T5, ATEX II 1G - Installation
A Level Switch LFFS-1xx is Ex ia IIC T5, ATEX II 1G approved for
application in hasardous areas in accordance with the current EU-
directives. The product must be installed in accordance with prevailing
guidelines for zone 0 with a barrier.
A certified Ex ia or isolation barrier with the maximum values
U
max
= 30 VDC ; I
max
= 0.1 A ; P
max
= 0.75 W must be used.
Ex-data
Supply range 24...30 VDC
Temperature class T1...T5: See table 1
Internal inductivity L
i
< 10 µH
Internal capacity C
i
< 33 nF
Barrier data U < 30 VDC ; I < 0.1 A ; P
< 0.75 W
Conditions for Ex-Certification (Table 1)
Note {2}: Provided that the sensor tip at the instrument is the only part in contact with the media.
Note {3}: Max. allowed media temperature.
22...120VDC or
90...253 VAC
NO
COM
NC
PNP out
-
+
A
B
1
2
3
C
Safe area
Zone 0/1
Level Switch LFFS
Isolating Module
PROFSI3-B25100-ALG-LS
NB: Only valid for PNP output
Connection Type Tamb °C Media Temp. max. °C Note
Std. & 3A/DN38
-40...85 85
-40...60 95 {2}
-40...40 115 {2}
Sliding 100 mm
-40...85 85
-40...60 150 {2}
-40...40 175 {2}
Sliding 250 mm
-40...85 85
-40...60 195 {2}
-40...40 200 {2} {3}