User Manual

Section 3 - Electrical installation
10/2001
BM 100 A ATEX
11
3.5 Options, current output
Options 1 to 7 apply to devices with intrinsically safe outputs (BM 100 A i) and to devices with
non-intrinsically safe outputs (BM 100 A). Options 8 and 9 apply to devices with non-intrinsically
safe outputs.
Outputs with Intrinsic Safety type of protection may only be connected to certified feed
devices.
I/O functions of the BM 100A (i)
Op-
tion
I/O function Power
terminals
EEx ‘e‘
BM 100 A
EEx ‘ia‘
BM 100 Ai
Electrical data
1 Current output HART® passive -5; +6 x x
2 Current output HART
+current output
passive
passive
-5; +6
-4; +4.1
xx
3 Current output HART active -5; +4.1* x x
4 PROFIBUS-PA passive 4; 4.1 x x
5 PROFIBUS-PA
+current output
passive
passive
4; 4.1
-5; +6
xx
6 FF passive 4; 4.1 x x
7 FF + current output passive
passive
4; 4.1
-5; +6
xx
8 Interface RS485 active B4; A4.1 x /
9 Interface RS485
+current output
active
passive
B4; A4.1
-5; +6
x/
see Section 3.3
* power terminals 6 and 4 must be shorted