SwirlMaster FSS430, FSS450 VortexMaster FSV430, FSV450 | CI/FSS/FSV430/450-EN Rev. D 25
Analog input 4 ... 20 mA
An external pressure transmitter, an external temperature
transmitter or a gas analyzer for a density signal can be
connected onto the analog input (4 ... 20 mA). The analog
input measures the current loop value.
— Temperature input for the return for power measurement
— Pressure input for pressure compensation for the flow
measurement of gases and steam
— Concentration of gas for the net metering of methane
(biogas)
— Density for calculating the mass flow
Current input
Terminals ANALOG INPUT+ / ANALOG
INPUT-
Operating voltage 16 ... 30 V DC
Input current 3.8 ... 20.5 mA
Equivalent resistance 90 Ω
Fig. 25: Connection of transmitters at the analog input (example)
1 Remote transmitter
2 Power supply for the remote transmitter
3 Cable entry for the analog input 4 FSS400 / FSV400
5 Cable entry for the current output
6 Power supply for FSS400 / FSV400
HART 7 communication with remote transmitter
Because the device is designed with two-wire technology, a
pressure or temperature transmitter can also be connected to
the power supply lead (4 ... 20 mA).
The transmitter connected must run in HART burst mode. The
device supports remote transmitters with HART 7
communication.
Fig. 26: Connection of transmitters with HART communication
(example)
1 Power supply for the remote transmitter
2 Power supply for FSS400 / FSV400
3 Remote transmitter 4 FSS400 / FSV400
5 Cable entry for the current output
G11772
EXT.
METER +
P/N :
USE WIRING RATED
5ºC MIN. ABOVE MAX.
AMBIENT TEMPERATURE
+
–
TEST PWR/COMM
+
–
1
23
4
USE WIRING RATED
5ºC MIN ABOVE MAX
AMBIENT TEMPERATURE
P/N:XXXXXXXXXXXX
DIGITAL
OUTPUT+
DIGITAL
OUTPUT–
PWR / COMM.
TEST
EXT
METER+
+
–
ANALOG INPUT
NAMUR-YES
NAMUR-NO
+
-
+
-
3 5
4
1
2
6
G11773
EXT.
METER +
P/N :
USE WIRING RATED
5ºC MIN. ABOVE MAX.
AMBIENT TEMPERATURE
+
–
TEST PWR/COMM
+
–
1
23
4
USE WIRING RATED
5ºC MIN ABOVE MAX
AMBIENT TEMPERATURE
P/N:XXXXXXXXXXXX
DIGITAL
OUTPUT+
DIGITAL
OUTPUT–
PWR / COMM.
TEST
EXT
METER+
+
–
ANALOG INPUT
NAMUR-YES
NAMUR-NO
+
-
5
4
3
+
-
1 2