Proline Promass E 300 Modbus RS485
Technical data
Hauser
173
16.4 Output
Output signal
Modbus RS485
Physical interface
RS485 in accordance with EIA/TIA-485 standard
Terminating resistor
Integrated, can be activated via DIP switches
Current output 4 to 20 mA
Signal mode
Can be set to:
• Active
• Passive
Current span
Can be set to:
• 4 to 20 mA NAMUR
• 4 to 20 mA US
• 4 to 20 mA
• 0 to 20 mA (only if the signal mode is active)
• Fixed current
Maximum output values
22.5 mA
Open-circuit voltage
DC 28.8 V (active)
Maximum input voltage
DC 30 V (passive)
Load
0 to 700 Ω
Resolution
0.38 µA
Damping
Configurable: 0 to 999.9 s
Assignable measured
variables
• Mass flow
• Volume flow
• Corrected volume flow
• Density
• Reference density
• Temperature
• Electronics temperature
• Oscillation frequency 0
• Oscillation damping 0
• Signal asymmetry
• Exciter current 0
The range of options increases if the measuring device has one or more
application packages.
Pulse/frequency/switch output
Function
Can be set to pulse, frequency or switch output
Version
Open collector
Can be set to:
• Active
• Passive
• Passive NAMUR
Ex-i, passive
Maximum input values
DC 30 V, 250 mA (passive)
Open-circuit voltage
DC 28.8 V (active)
Voltage drop
For 22.5 mA: ≤ DC 2 V
Pulse output
Maximum input values
DC 30 V, 250 mA (passive)