5 Installation
20
5.1.13 Installation in piping with larger nominal
diameter
1
Reducer
Figure 19: Using reducers
Determine the resulting pressure loss when using reducers:
1. Determine diameter ratios d/D.
2. .Determine the flow velocity based on the flow rate
nomogram (Figure 20).
3. Read the pressure loss on the Y-axis in Figure 20.
Figure 20: Flow rate nomogram for flange transition piece at
α
/2 = 8°
5.1.14 Installation in 3A compliant installations
1
Angel bracket
2
Leakage hole
Figure 21: 3A compliant installation
Please observe the following points:
A
Do not install the device vertically with the terminal box or
transmitter housing pointing downward.
B
The ‘angel bracket’ option is not 3A compliant.
C
Please make sure that the leakage hole of the process
connection is located at the lowest point of the installed
device.
• A vertical mounting position is preferred. For a horizontal
mounting position, make sure that the sensor is installed
to be self-draining.
• Make sure that the cover of terminal box and / or
transmitter housing is properly sealed. There can be no
gaps between the housing and the cover.
Only devices with the following process connections fulfill 3A
compliance.
• Welded
spuds
• Tri-clamp
Summary of Contents for 406060
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