Technical data
Proline Promag L 400 HART
122
Hauser
16
Technical data
16.1
Application
The measuring device is only suitable for flow measurement of liquids with a minimum conductivity
of 5
m
S/cm. In the case of demineralized water, a minimum conductivity of 20
m
S/cm is required.
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 adequately 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 device consists of a transmitter and a sensor.
Two device versions are available:
• Compact version – the transmitter and sensor form a mechanical unit.
• Remote version – the transmitter and sensor are mounted separately from one another.
For information on the structure of the device (
16.3
Input
Measured variable
Direct measured variables
• Volume flow (proportional to induced voltage)
• Electrical conductivity
Calculated measured variables
Mass flow
Measuring range
Typically v = 0.01 to 10 m/s (0.03 to 33 ft/s) with the specified accuracy
Flow characteristic values in SI units
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]
[m
3
/h]
[m
3
/h]
[m
3
]
[m
3
/h]
50
2
35 to 1
100 dm
3
/min
300 dm
3
/min
2.5 dm
3
5 dm
3
/min
65
–
60 to 2
000 dm
3
/min
500 dm
3
/min
5 dm
3
8 dm
3
/min
80
3
90 to 3
000 dm
3
/min
750 dm
3
/min
5 dm
3
12 dm
3
/min
100
4
145 to 4
700 dm
3
/min
1
200 dm
3
/min
10 dm
3
20 dm
3
/min
125
–
220 to 7
500 dm
3
/min
1
850 dm
3
/min
15 dm
3
30 dm
3
/min
150
6
20 to 600
150
0.025
2.5
