Endress+Hauser Proline Promag W 500, Руководство по эксплуатации

Страница: 221 / 262

Proline Promag W 500 PROFINET Technical data
Hauser 221
16 Technical data
16.1 Application
The measuring device is only suitable for flow measurement of liquids with a minimum
conductivity of 5 µS/cm.
Depending on the version ordered, the measuring device can also measure potentially
explosive, flammable, poisonous and oxidizing media.
To ensure that the device remains in proper operating condition for its service life, use the
measuring device only for media against which the process-wetted materials are
sufficiently resistant.
16.2 Function and system design
Measuring principle Electromagnetic flow measurement on the basis of Faraday's law of magnetic induction .
Measuring system The measuring system consists of a transmitter and a sensor. The transmitter and sensor
are mounted in physically separate locations. They are interconnected by connecting
cables.
For information on the structure of the device →  14
16.3 Input
Measured variable Direct measured variables
• Volume flow (proportional to induced voltage)
• Electrical conductivity
Calculated measured variables
• Mass flow
• Corrected volume flow
Measuring range Typically v = 0.01 to 10 m/s (0.03 to 33 ft/s) with the specified accuracy
Electrical conductivity: ≥ 5 μS/cm for liquids in general
Flow characteristic values in SI units: DN 25 to 125 (1 to 4")
Nominal diameter
Recommended
flow
Factory settings
min./max. full
scale value
(v ~ 0.3/10 m/s)
Full scale value
current output
(v ~ 2.5 m/s)
Pulse value
(~ 2 pulse/s)
Low flow cut off
(v ~ 0.04 m/s)
[mm] [in] [dm 3 /min] [dm 3 /min] [dm 3 ] [dm 3 /min]
25 1 9 to 300 75 0.5 1
32 – 15 to 500 125 1 2
40 1 ½ 25 to 700 200 1.5 3
50 2 35 to 1 100 300 2.5 5
65 – 60 to 2 000 500 5 8