Promag CON-485 Series Technické informace stáhnout pdf (Strana 18)

Proline Promag 50W, 53W

18 Endress+Hauser

Inlet and outlet runs If possible, install the sensor well clear of fittings such as valves, T-pieces, elbows, etc. Compliance with the

following requirements for the inlet and outlet runs is necessary in order to ensure measuring accuracy:

• Inlet run ≥ 5 x DN

• Outlet run ≥ 2 x DN

F06-5xxxxxxx-11-00-00-xx-005

Adapters Suitable adapters to DIN EN 545 (double flange junction sections) 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. The

nomogram applies only to fluids of viscosity similar to water.

1. Calculate the ratio of the diameters d/D.

2. From the nomogram read off the pressure loss as a function of flow velocity (downstream from the reduc-

tion) and the d/D ratio.

F06-5xxxxxxx-05-05-xx-xx-000

max. 8°

100

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 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 39 40

Žádné komentáře

Promag CON-485 Series Technické informace Strana 18