Installing The Wall Thickness Measuring; Sensors Ddu 19 (Accessories) - Endress+Hauser PROline prosonic flow 93 Operating Instructions Manual

3 Installation
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40
3.4.11 Installing the wall thickness measuring sensors DDU 19
(accessories)
Variant 1
1. Fix a tensioning band for small or large nominal diameters as described on
Page 21.
2. Coat the contact surface of the sensor with an even (approx. 1 mm thick) layer of
coupling fluid (starting from the groove, through the centre and to the opposite
side). Then carefully insert the sensor into the sensor holders. Press the sensor
cover onto the sensor holder until you hear a click. Make sure that the arrows
▲ ▼
( / "close") on the sensor housing and sensor holder are pointing to each other.
Then insert the sensor cable plug into the opening provided and manually tighten
the plug to the stop.
3. After determining the pipe wall thickness, replace the wall thickness measuring
sensor DD 19 with the appropriate flowmeter sensor.
Note!
Do not forget to clean the coupling point carefully before you insert the flowrate meas-
uring sensor coated with the coupling fluid.
Variant 2
This is only suitable for as long as the transmitter Prosonic Flow 93 is within arm's length
of the measuring point. Coat the contact surface of the sensors with an approx. 1 mm
thick layer of the coupling fluid (from the center to the groove, see Page 98). Then hold
the sensor vertically on the pipe for measurement. Operate the on-site operation with
your other hand.
Fig. 41: Installing the wall thickness measuring sensor
PROline Prosonic Flow 93
Endress+Hauser