Promag 50/53 W
Hauser
Pipes with cathodic protection
If the medium cannot be grounded for process-related reasons, the measuring
device must be installed in such a way as to be potential-free:
•
When installing the measuring device, make sure that there is an electrical
connection between the two piping runs, 9 AWG copper wire (6 mm
2
).
•
Make sure that the installation materials do not establish a conductive connection
to the measuring device and that the installation materials withstand the
tightening torques applied when the threaded fasteners are tightened.
•
Also comply with the regulations applicable to potential-free installation.
a = isolating transformer, b = electrically insulated
12
Performance characteristics
To DIN 19200 and VDI/VDE 2641:
•
Medium temperature: +28 °C ± 2 K
•
Ambient temperature: +22 °C ± 2 K
•
Warm-up time: 30 minutes
Installation:
•
Inlet run >10 x Dia
•
Outlet run > 5 x Dia
•
Sensor and transmitter grounded.
•
Sensor centered relative to the pipe.
Promag 50:
Pulse output: ± 0.5% o.r. ± 1 mm/s (o.r. = of reading)
Current output: plus typically ± 5
µ
A
Promag 53:
Pulse output: ± 0.2% o.r. ± 2 mm/s (o.r. = of reading)
Current output: plus typically ± 5
µ
A
Supply-voltage fluctuations have no effect within the specified range.
Reference conditions
Measured error
Repeatability
Measured error in [%] of reading
± 0.1% o.r. ± 0.5 mm/s (o.r. = of reading)
9 AWG Cu
a
b
b
0
3
(1)
6
(2)
13
(4)
20
(6)
26
(8)
33
(10)
2.5
[%]
2.0
1.5
1.0
0.5
0
v ft/s (m/s)
0.2 %
0.5 %
