Endress+Hauser Proline Promag W 500, Operating Instructions Manual

Page: 238 / 262

Technical data Proline Promag W 500 PROFINET
238 Hauser
Nominal diameter Limit values for absolute pressure in [mbar] ([psi]) for medium temperatures:
[mm] [in] +25 °C (+77 °F) +90 °C (+194 °F)
50 2 0 (0) 0 (0)
65 2 ½ 0 (0) 40 (0.58)
80 3 0 (0) 40 (0.58)
100 4 0 (0) 135 (2.0)
125 5 135 (2.0) 240 (3.5)
150 6 135 (2.0) 240 (3.5)
200 8 200 (2.9) 290 (4.2)
250 10 330 (4.8) 400 (5.8)
300 12 400 (5.8) 500 (7.3)
Flow limit The diameter of the pipe and the flow rate determine the nominal diameter of the sensor.
The optimum velocity of flow is between 2 to 3 m/s (6.56 to 9.84 ft/s). Also match the
velocity of flow (v) to the physical properties of the fluid:
• v < 2 m/s (6.56 ft/s): for abrasive fluids (e.g. potter's clay, lime milk, ore slurry)
• v > 2 m/s (6.56 ft/s): for fluids producing buildup (e.g. wastewater sludge)
A necessary increase in the flow velocity can be achieved by reducing the sensor
nominal diameter.
For an overview of the full scale values for the measuring range, see the "Measuring
range" section
Pressure loss • No pressure loss occurs if the sensor is installed in a pipe with the same nominal
diameter.
• Pressure losses for configurations incorporating adapters according to DIN EN 545
→  27
DN80
(3")
DN65
(2½") DN50
(2")
500
450
400
350
300
250
200
150
100
50
0
0 10 20 30 40 50 60 70 80 90 100 110 120
[mbar]
[m /h] ³
0 100 200 300 400 500 50 150 250 350 450
[gal/min]
7
[psi]
0
1
2
3
4
5
6
A0032667-EN
 49 Pressure loss DN 50 to 80 (2 to 3") for order code for "Design", option C "fixed flange, without inlet/outlet
runs"