Endress+Hauser Proline Prowirl F 200, Руководство по эксплуатации

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Technical data Proline Prowirl F 200 PROFIBUS PA
194 Hauser
Q
Ma = 0.3
Restricted upper range value is dependent on Mach number
c Sound velocity
D
i
Internal diameter of measuring tube (corresponds to dimension K)
ρ Density
The effective upper range value Q
High
is determined using the smallest of the three values
Q
max
, Q
AmpMax
and Q
Ma=0.3
.
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 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 (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
Hauser.
• If using pressure measuring devices, pay attention to outlet runs when installing
external devices→  22.
If the measuring device does not have pressure or temperature compensation
3)
, it is
recommended that external pressure measurement values be read in so that the following
measured variables can be calculated:
• Energy flow
• Mass flow
• Corrected volume flow
3) Order code for "Sensor option", option DA, DB