Proline Prowirl 72F, 72W, 73F, 73W
Endress+Hauser 7
Output signal Prowirl 72
Current output:
• 4...20 mA with HART,
• Full scale value and time constant (0...100 s) can be set
Pulse/status output:
• Open collector, passive, galvanically isolated
– Non-Ex, Ex d version:
U
max
= 36 V, with 15 mA current limiting, R
i
= 500 Ω
– Ex i and Ex n version:
U
max
= 30 V, with 15 mA current limiting, R
i
= 500 Ω
The pulse/status output can be configured as:
• Pulse output:
– Pulse value and polarity can be selected (5...2,000 ms)
– Pulse width can be configured (0.005...2s)
– Pulse frequency max. 100 Hz
• Status output:
Can be configured for error messages or flow limit values
• Vortex frequency:
– Direct output of unscaled vortex pulses 0.5...2,850 Hz
(e.g. for connecting to an RMC 621 flow computer)
– Pulse ratio 1:1
PROFIBUS PA interface:
– PROFIBUS PA in accordance with EN 50170 Volume 2, IEC 61158-2 (MBP), galvanically isolated
– Current consumption = 16 mA
– Error current FDE (Fault Disconnection Electronic) = 0 mA
– Data transmission rate: supported baudrate = 31.25 kBit/s
– Signal encoding = Manchester II
– Function blocks: 1 x Analog Input, 1 x totalizer
– Output data: volume flow, calculated mass flow, corrected volume flow, totalizer
– Input data: positive zero return (ON/OFF), totalizer control
– Bus address can be set at the device via DIP switches
FOUNDATION Fieldbus interface:
– FOUNDATION Fieldbus H1, IEC 61158-2, galvanically isolated
– Current consumption = 16 mA
– Error current FDE (Fault Disconnection Electronic) = 0 mA
– Data transmission rate: supported baudrate = 31.25 kBit/s
– Signal encoding = Manchester II
– Function blocks: 2 x Analog Input, 1 x Discrete Output
– Output data: volume flow, calculated mass flow, corrected volume flow, totalizer
– Input data: positive zero return (ON/OFF), totalizer reset
– Link Master (LM) functionality is supported
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