Endress+Hauser Proline Prowirl R 200 - Page 179

Proline Prowirl R 200 HART Technical data
Endress+Hauser 179
Q [m /h] = min
High
³
Q [m /h]
max
³
Q [m /h]
AmpMax
³
Q [m /h]
Ma = 0.3
³
Q [! /min] = min
High
³
Q [ /min]
max
!³
Q [ /min]
AmpMax
!³
Q [ /min]
Ma = 0.3
!³
A0034338
Q
High
Effective upper range value
Q
max
Maximum measurable flow rate
Q
AmpMax
Maximum measurable flow rate based on signal amplitude
Q
Ma = 0.3
Restricted upper range value is dependent on Mach number
For liquids, the occurrence of cavitation may also restrict the upper range value.
The Applicator is available for calculation purposes.
Operable flow range The value, which is typically up to 49: 1, may vary depending on the operating conditions
(ratio between upper range value and lower range value)
Input signal Current input
Current input 4-20 mA (passive)
Resolution 1 µA
Voltage drop Typically: 2.2 to 3 V for 3.6 to 22 mA
Maximum voltage ≤ 35 V
Possible input variables • Pressure
• Temperature
• Density
External measured values
To increase the accuracy of certain measured variables or to calculate the corrected volume
flow, the automation system can continuously write different measured values to the
measuring device:
• Operating pressure to increase accuracy (Endress+Hauser recommends the use of a
pressure measuring device for absolute pressure, e.g. Cerabar M or Cerabar S)
• Medium temperature to increase accuracy (e.g. iTEMP)
• Reference density for calculating the corrected volume flow
• Various pressure measuring devices can be ordered as accessories from
Endress+Hauser.
• If using pressure measuring devices, pay attention to outlet runs when installing
external devices→  25.