KROHNE OPTISONIC 3400 EN - Manual (Page 117)

DESCRIPTION OF HART INTERFACE
9
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OPTISONIC 3400
www.krohne.com 11/2013 - 4002037702 - HB OPTISONIC 3400 -en-R02
9.3.1 Point-to-Point connection - analogue / digital mode
Point-to-Point connection between the signal converter and the HART ® Master.
The current output of the device may be active or passive.
1 Primary master
2 FSK modem or HART
® modem
3 HART ® signal
4 Analog indication
5 Signal converter terminals A (C)
6 Signal converter terminals A- (C-)
7 Signal converter with address = 0 and passive or active current output
8 Secondary Master
9 Power supply for devices (slaves) with passive current output
10 Load ≥ 250 Ω (Ohm)