Endress+Hauser Proline Promag W 500 - Page 16

Proline Promag W 500
16 Endress+Hauser
Modbus RS485
Physical interface RS485 in accordance with EIA/TIA-485 standard
Terminating resistor Integrated, can be activated via DIP switches
Current output 0/4 to 20 mA
Current output 0/4 to 20 mA
Maximum output values 22.5 mA
Current span Can be set to:
• 4 to 20 mA (active)
• 0/4 to 20 mA (passive)

Ex-i, passive
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 Adjustable: 0.07 to 999 s
Assignable measured
variables
• Volume flow
• Mass flow
• Corrected volume flow
• Flow velocity
• Conductivity
• Corrected conductivity
• Temperature
• Electronic temperature
Pulse/frequency/switch output
Function Can be set to pulse, frequency or switch output
Version Open collector
Can be set to:
• Active
• Passive

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)
Maximum output current 22.5 mA (active)
Open-circuit voltage DC 28.8 V (active)
Pulse width Adjustable: 0.05 to 2 000 ms
Maximum pulse rate 10 000 Impulse/s
Pulse value Adjustable
Assignable measured
variables
• Volume flow
• Mass flow
• Corrected volume flow
Frequency output