Endress+Hauser Proline Promag 50 - Page 8

Installation Proline Promag 50
8 Endress+Hauser
Partially filled pipes
Partially filled pipes with gradients necessitate a drain-type configuration.
The empty pipe detection (EPD) function 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.
Down pipes
Install a siphon or a vent valve downstream of the sensor in down pipes longer than 5 meters
(16 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.
For information on the pressure tightness of the measuring tube lining, see the Operating
Instructions on the CD-ROM.
A0008155
Installation in a partially filled pipe
A0008157
Measures for installation in a down pipe (h > 5 m/16 ft)
1. Vent valve
2. Siphon
5xDN
2xDN
³
³
h
2
1
Q-Pulse Id
Active 30/09/2014
Page 8 of 52
Vendor Manual - Electromagnetic Flowmeter - Endress and Hauser - Model Proline Promag 50 - Operating Instructions
Q-Pulse Id VM454
Active 30/09/2014
Page 8 of 52