Technical data Proline Prosonic Flow W 400 HART
156 Endress+Hauser
Maximum pulse rate 10 000 Impulse/s
Pulse value Configurable
Assignable measured
variables
• Volume flow
• Mass flow
Frequency output
Output frequency Configurable: 0 to 12 500 Hz
Damping Configurable: 0 to 999 s
Pulse/pause ratio 1:1
Assignable measured
variables
• Volume flow
• Mass flow
• Sound velocity
• Flow velocity
• Electronics temperature
Switch output
Switching behavior Binary, conductive or non-conductive
Switching delay Configurable: 0 to 100 s
Number of switching
cycles
Unlimited
Assignable functions • Off
• On
• Diagnostic behavior
• Limit value
• Volume flow
• Mass flow
• Sound velocity
• Flow velocity
• Totalizer 1-3
• Electronics temperature
• Flow direction monitoring
• Status
Low flow cut off
Signal on alarm Depending on the interface, failure information is displayed as follows:
Current output 4 to 20 mA
4 to 20 mA
Failure mode Choose from:
• 4 to 20 mA in accordance with NAMUR recommendation NE 43
• 4 to 20 mA in accordance with US
• Min. value: 3.59 mA
• Max. value: 22.5 mA
• Definable value between: 3.59 to 22.5 mA
• Actual value
• Last valid value
0 to 20 mA
Failure mode Choose from:
• Max. alarm: 22 mA
• Definable value between: 0 to 22.5 mA
HART current output
Device diagnostics Device condition can be read out via HART Command 48