Endress+Hauser Proline Promag W 400 HART, Operating Instructions Manual

Page: 151 / 198

Proline Promag W 400 HART Technical data
Hauser 151
Operable flow range Over 1000 : 1
For custody transfer, the operable flow range is 100 : 1 to 250 : 1, depending on the
nominal diameter. Further details are specified by the applicable approval.
Input signal External measured values
Various pressure transmitters and temperature measuring devices can be ordered
from Hauser: see "Accessories" section →  146
It is recommended to read in external measured values to calculate the following measured
variables:
Corrected volume flow
HART protocol
The measured values are written from the automation system to the measuring device via
the HART protocol. The pressure transmitter must support the following protocol-specific
functions:
• HART protocol
• Burst mode
Status input
Maximum input values • DC 30 V
• 6 mA
Response time Adjustable: 5 to 200 ms
Input signal level • Low signal: DC –3 to +5 V
• High signal: 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:
• 4-20 mA NAMUR
• 4-20 mA US
• 4-20 mA HART
• 0-20 mA
Maximum output values • DC 24 V (no flow)
• 22.5 mA
Load 0 to 700 Ω
Resolution 0.5 µA
Damping Adjustable: 0.07 to 999 s
Assignable measured
variables • Volume flow
• Mass flow
• Flow velocity
• Conductivity
• Electronic temperature