Endress+Hauser Proline Promag W 500 - Adapters; Length of Connecting Cable

Proline Promag W 500
Endress+Hauser 49
≥ 5 × DN
≥ 2 × DN
A0028997
 27 Order code for "Design", option A "Insertion length short, ISO/DVGW to DN400, DN450-2000 1:1" and
order code for "Design", option B "Insertion length long, ISO/DVGW to DN400, DN450-2000 1:1.3"
Adapters
Suitable adapters to DIN EN 545 (double-flange reducers) can be used to install the sensor in larger-
diameter pipes. The resultant increase in the rate of flow improves measuring accuracy with very
slow-moving fluids.
The nomogram shown here can be used to calculate the pressure loss caused by reducers and
expanders:
• Calculate the ratio of the diameters d/D.
• From the nomogram read off the pressure loss as a function of flow velocity (downstream from
the reduction) and the d/D ratio.
The nomogram only applies to liquids with a viscosity similar to that of water.
100
10
0.5
d / D
[mbar]
0.6 0.7 0.8 0.9
1 m/s
2 m/s
3 m/s
4 m/s
5 m/s
6 m/s
7 m/s
8 m/s
1
D
d
max. 8°
A0029002
Length of connecting cable
Proline 500 transmitter
Max. 200 m (650 ft)
To ensure correct measuring results ,
observe the maximum permitted length of the connecting cable L
max
. This length is determined by
the conductivity of the fluid.
If measuring liquids in general: 5 µS/cm