KROHNE OPTISONIC 6400 Handbook page 48

ELECTRICAL CONNECTIONS
4
Current input active
• U
int, nom
• I ≤ 22 mA
≤ 26 mA (electronically limited)
• I
max
• U
0, min
• no no no HART no
• Not galvanically isolated
• X designates the connection terminals A or B, depending on the version of the signal
converter.
Figure 4-10: Current input active IIn
1 Signal
2 2-wire transmitter (e.g. temperature)
®
HART connection active (point-to-point)
Figure 4-11: HART
®
1 HART communicator
The parallel resistance to the HART
48
= 15 VDC
= 19 V at I ≤ 22 mA
®
a
®
connection active (I
a
)
® communicator must be R ≥ 370 Ω.
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OPTISONIC 6400
08/2011 - 4000972602 - MA OPTISONIC 6400 R02 en