Manual

Supplementary Installation and Operating Instructions IFC 300 HART
HC275, FC375, AMS, PDM, FDT DTM
In case that the IFC 300's current output shall work continuously active a 'third wire' is needed to properly connect it
together with two-wire loop powered devices in the same network.
Multidrop Mode (‘three-wire’)
(Connecting two-wire and four-wire devices in the same network)
≥ 250 Ω
HART
two-wire
loop powered
devices
4 mA
4 mA
. . .
Addr. > 0 Addr. > 0
4 mA
. . .
four-wire
active
source
devices
4 mA
HART
Secondary Master
Primary Master
Power
Supply
HART
Modem
IFC 300
Addr. > 0
IFC 300
Addr. > 0
Terminal A (C)
Terminal A- (C-)
2 IDs and Revision numbers
The HART Device Descriptions described in this document have the following IDs and revision numbers:
Manufacturer ID: 69 (0x45)
Device Type: 227 (0xE3)
Device Revision: 1
DD Revision: 2
HART Universal Revision: 5
HC 275 OS Revision: ≥ 4.9
FC 375 System SW Rev.: ≥ 1.8
AMS Version: ≥ 6.0
PDM Version: ≥ 5.2
FDT Version: ≥ 1.2
For information about Transmitter Revisions and related Device Descriptions refer to the KROHNE HART Device
List.
KROHNE Messtechnik GmbH & Co. KG · Ludwig-Krohne-Str. 5  D-47058 Duisburg 5/20
Tel.: [phone]  Fax: [phone] · e-mail: [e-mail]