KROHNE BM 70A EEx IT - Manuale (Pagina 24)

KROHNE BM 70x Supplemento - Ex page: 24 01/2001
Fig. 5
current
output
Switching output
max. 110mA/30V
41 42
-
+
+ unit
U max.= 30V
4-20mA
U min.
= 8V
Ex-i supply
32 31
I I B B
___________________________________________________________________
Profibus PA fieldbus o Foundation Fieldbus (FF) (a sicurezza intrinseca)
Fig. 6
32 31
bus
connection
D D
___________________________________________________________________
Profibus PA / FF con uscita in corrente (a sicurezza intrinseca)
Fig. 7
42
-
Ex-i supply
+
+ unit
U max.= 30V
current
output
4-20mA
U min.
= 8V
41 32 31
bus
connection
I I D D
___________________________________________________________________
Profibus PA /FF con uscita di switch (a sicurezza intrinseca)
Fig. 8
32 31
switching output
max. 110mA/30V
42 41
bus
connection
D D B B