Proline Prowirl 72 FOUNDATION Fieldbus 10 Technical data
Endress + Hauser 63
Full scale value
Liquids: v
max
= 9 m/s (30 ft/s)
Gas/steam: see Table
!
Note!
By using the selection and planning program "Applicator", you can determine the exact values for
the fluid you use. You can obtain the Applicator from your Endress+Hauser sales center or on the
Internet under www.endress.com.
K-factor range
The table is used for orientation purposes. The range in which the K-factor can be is indicated for
individual nominal diameters and designs.
10.1.4 FOUNDATION Fieldbus output
Output signal Physical data transfer (Physical Layer Type):
• Fieldbus interface in accordance with IEC 61158-2 (MBP)
• With integrated reverse polarity protection
Signal on alarm Status message in accordance with Specification of the FOUNDATION Fieldbus
Starting current Smaller than the basic current
Basic current 16 mA
Nominal diameter v
max
Standard instrument: DN 15 (½")
R-type: DN 25 (1") > DN 15 (½")
S-type: DN 40 (1½") >> DN 15 (½")
46 m/s (151 ft/s) or Mach 0.3
(depending on which is smaller)
Standard instrument: DN 25 (1"), DN 40 (1½")
R-type:
– DN 40 (1½") > DN 25 (1")
– DN 50 (2") > DN 40 (1½")
S-type:
– DN 80 (3") >> DN 40 (1½")
75 m/s (246 ft/s) or Mach 0.3
(depending on which is smaller)
Standard instrument: DN 50 (2") to 300 (12")
R-type:
– DN 80 (3") > DN 50 (2")
– Nominal diameters larger than DN 80 (3")
S-type:
– DN 100 (4") >> DN 50 (2")
– Nominal diameters larger than DN 100 (4")
120 m/s (394 ft/s) or Mach 0.3
(depending on which is smaller)
Calibrated range: up to 75 m/s (246 ft/s)
Nominal diameter K-factor range [pulse/dm³]
DIN ANSI 72 F 72 W
DN 15 ½" 390 to 450 245 to 280
DN 25 1" 70 to 85 48 to 55
DN 40 1½" 18 to 22 14 to 17
DN 50 2" 8 to 11 6 to 8
DN 80 3" 2.5 to 3.2 1.9 to 2.4
DN 100 4" 1.1 to 1.4 0.9 to 1.1
DN 150 6" 0.3 to 0.4 0.27 to 0.32
DN 200 8" 0.1266 to 0.1400 –
DN 250 10" 0.0677 to 0.0748 –
DN 300 12" 0.0364 to 0.0402 –
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