4.3.2 How to measure the takeover used
The minimum distance between the probe of the ultrasonic level gauge and the surface of the medium
to be measured is the so-called dead zone. But sometimes the minimum distance can't be guaranteed
on site, then it is necessary to install an extended nozzle on the container.
4.3.2.1 How to extend the measuring liquid takeover
Keep the inner wall of the pipe as smooth as possible. The pipe cannot be submerged in the medium
to prevent the medium from contaminating the pipe or sticking to the inner wall of the pipe.
Do not soak in adhesive medium
If it is a non-adhesive medium, the extension tube can be immersed in the medium for a long time (if it
is not corroded by the liquid, and no debris can adhere to the inner wall of the pipe), so the
measurement will be more accurate because the measurement will not be affected by other things in
the container Impact of the device.
The inner diameter of the pipe should be as large as possible, and the chamfered cut should be
smooth. The following figure shows the relationship between the takeover height L and the takeover
inner diameter φ.
Serial number
1
2
3
4
5
Takeover length
150mm
200mm
250mm
300mm
400mm
Nominal inner diameter
φsize
100mm
150mm
180mm
220mm
280mm
Note
Do 45° bevel polishing from inside to outside of
the nozzle.
No burrs or protrusions on the inner wall of the
takeover tube, vertical up and down,Welds are
polished. Takeover and tank top connection
024
EN
7
0
1
7
8
7
2
.0
6
0
9
/2
0
1
8
C
H
/E
N
Ultrasonic Level Meter Menu Simple Setting Operation Instructions