Proline Promag 50D
12
Hauser
Partially filled pipes
Partially filled pipes with gradients necessitate a drain-type configuration.
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Installation with partially filled pipes
Down pipes
Install a siphon or a vent valve downstream of the sensor in down pipes longer than 5 meters. This precaution
is to avoid low pressure and the consequent risk of damage to the measuring tube. This measure also prevents
the system losing prime, which could cause air pockets. Information on the pressure tightness of the measuring
tube can be found in the “Pressure tightness” section in the “Operating conditions: Process” chapter.
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Installation measures for down pipes (h
≥
5 m)
1
Vent valve
2
Pipe siphon
Orientation
³
5 x DN
³
2 x DN
h
2
1
Vertical
Horizontal
Vertical orientation is generally preferred. Vertical
orientation helps avoid gas and air accumulations and
deposits in the measuring tube.
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Vertical orientation
The measuring electrode axis should be horizontal in the
case of horizontal orientations. This prevents brief
insulation of the two measuring electrodes by entrained
air bubbles.
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Horizontal orientation
1
Measuring electrodes for signal detection
A
A
1
1
