Connecting
5.4 Transmitter power supply, communications and I/Os connection
SITRANS F Ultrasonic flowmeters FST030 (HART)
46
Operating Instructions, 08/2017, A5E35971532-AC
5.4.5.1
Input/output configuration
All pressure values are handled as absolute pressure. If connected pressure transmitters
measure the pressure in gauge pressure, then please convert to absolute pressure by using
the scaling functionality of the flow transmitters current input channel.
Configura-
tion
Software configuration
Channel
2
3
4
Output
Active
Current output
Frequency output
Pulse output
Status output
•
Alarm class
•
Alarm item
•
NAMUR status signals
X X X
Active
Output
Passive
Current output
Frequency output
Pulse output
Status output
•
Alarm class
•
Alarm item
•
NAMUR status signals
X X X
Passive
Input
Active
Digital input
•
Reset totalizer 1
•
Reset totalizer 2
•
Reset totalizer 3
•
Reset all totalizers
•
Force outputs
•
Freeze process values
•
Zero adjust
X X
Active
Input
Passive
Digital input
•
Reset totalizer 1
•
Reset totalizer 2
•
Reset totalizer 3
•
Reset all totalizers
•
Force outputs
•
Freeze process values
•
Zero adjust
X X
Passive