Proline Prosonic Flow W 400 HART Technical data
Endress+Hauser 155
HART protocol
The measured values are written from the automation system to the measuring device via
the HART protocol. The temperature and density measuring device must support the
following protocol-specific functions:
• HART protocol
• Burst mode
Status input
Maximum input values • DC 30 V
• 6 mA
Response time Configurable: 5 to 200 ms
Input signal level • Low signal (low): DC –3 to +5 V
• High signal (high): DC 12 to 30 V
Assignable functions • Off
• Reset totalizers 1-3 separately
• Reset all totalizers
• Flow override
16.4 Output
Output signal Current output
Current output Can be set as:
• 4 to 20 mA NAMUR
• 4 to 20 mA US
• 4 to 20 mA HART
• 0 to 20 mA
Maximum output values • DC 24 V (when idle)
• 22.5 mA
Load 250 to 700 Ω
Resolution 0.38 µA
Damping Configurable: 0 to 999.9 s
Assignable measured
variables
• Volume flow
• Mass flow
• Sound velocity
• Flow velocity
• Electronics temperature
The range of options increases if the measuring device has one or more
application packages.
Pulse/frequency/switch output
Function • With the order code for "Output; Input", option H: output 2 can be set as a pulse
or frequency output
• With the order code for "Output; Input", option I: output 2 and 3 can be set as a
pulse, frequency or switch output
Version Passive, open collector
Maximum input values • DC 30 V
• 250 mA
Voltage drop At 25 mA: ≤ DC 2 V
Pulse output
Pulse width Configurable: 0.05 to 2 000 ms
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