Proline Prosonic Flow 93T Portable Installation
Endress+Hauser 29
3.10 Installing sensor DDU20 (wall thickness measurement)
3.10.1 Method 1
Measuring the wall thickness on pipes DN 15 to 65 (½ to 2½") when using the sensor holder shown
on ä 16 or ä 18.
1. Mount sensor holder per instructions ä 16 or ä 18.
2. Coat the contact surface (1) of the sensor with an even layer of coupling fluid
approx. 1 mm (0.04") thick.
A0013626
Fig. 32: Coating with coupling fluid
3. Mount sensor as illustrated in the graphic (steps 1 to 5).
4. The sensor can now be connected to the 93T transmitter via the connecting cables.
!
Note!
The polarity of the connections to the 93T transmitter is not important for wall thickness
measurement.
If flow sensors are to be installed after the wall thickness measurement is made, be sure to clean the
pipe surface once again.
A0011552
Fig. 33: Mounting the sensor,
Sensor holder: Model 1
A0013551
Fig. 34: Mounting the sensor,
Sensor holder: Model 2