Environmental And Process Requirements; Special Mounting Instructions - Endress+Hauser IO-Link Dosimag Operating Instructions Manual

Dosimag IO-Link
Endress+Hauser
6.1.2

Environmental and process requirements

Ambient temperature range
Measuring instrument –40 to +60 °C (–40 to +140 °F)
Install the measuring instrument in a shady location. Avoid direct sunlight, particularly
in warm climatic regions.
Liner Do not exceed or fall below the permitted temperature range of the liner →  59.
System pressure
Installation near pumps →  15
Vibrations
Installation in event of pipe vibrations →  15
Adapters
The measuring device can also be installed in larger-diameter pipes with the aid of suitable
adapters according to DIN EN 545 (double-flange reducers). 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 only applies to liquids with a viscosity similar to that of water.
• If the medium has a high viscosity, a larger measuring tube diameter can be
considered in order to reduce pressure loss.
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 reduction) and the d/D ratio.
max. 8°
6.1.3

Special mounting instructions

Information for filling systems
Correct measurement is only possible if the pipe is completely full. We therefore
recommend that some test batches be carried out prior to production batching.
8 m/s
7 m/s
6 m/s
5 m/s
4 m/s
3 m/s
2 m/s
d D
1 m/s
0.5 0.6
Mounting
[mbar]
100
10
1
0.7 0.8 0.9
d / D
A0029002
19