Installation
Promag 50
14
Hauser
Partially filled pipes
Partially filled pipes with gradients necessitate a drain-type configuration.
The Empty Pipe Detection function (EPD
73) offers additional protection by detecting empty
or partially filled pipes.
"
Caution!
Risk of solids accumulating. Do not install the sensor at the lowest point in the drain. It is advisable
to install a cleaning valve.
A0008155
Fig. 8:
Installation in a partially filled pipe
Down pipes
Install a siphon or a vent valve downstream of the sensor in down pipes whose length h
5 m
(16.4 ft). This precaution is to avoid low pressure and the consequent risk of damage to the lining
of the measuring tube.
This measure also prevents the system losing prime, which could cause air pockets. Information on
the lining's resistance to partial vacuum can be found on
A0008157
Fig. 9:
Measures for installation in a down pipe
1
Vent valve
2
Pipe siphon
h
Length of down pipe
5 x DN
2 x DN
³
³
h
2
1