KROHNE OPTISONIC 7300 EN - Manual (Page 55)

ELECTRICAL CONNECTIONS
4
55
OPTISONIC 7300
www.krohne.com 09/2012 - 4001102303 - MA OPTISONIC 7300 R03 en
HART ® connection passive (Multi-Drop mode)
• I: I
0%
≥ 4 mA
• Multi-Drop mode I: I
fix
≥ 4 mA = I
0%
• U
ext
≤ 32 VDC
• R ≥ 230 Ω
Figure 4-32: HART ® connection passive (I
p
)
1 Basic I/O: terminals A- and A
2 Modular I/O: terminals C- and C
3 HART
® communicator
4 Other devices with HART ® capability