Hello,
I have faced with one issue regarding a noize in level meter 5300 with 8 mm single rid probe (1.8 m length) installed in 4 inch level bridle. We have a very bad signal quality about 1.5. Level bridle is not smooth inside and have some small roughs. Also the liquid inside has different properties from time to time, but mostly it is a water methanol mixture. In addition the centering disk is not installed. Can it be a reason of low quality? And another question, it is written in manual that level bridle serves as a screen for rigid single probe from outside interference. In this case, are there any earthing recommendations of bridle, for example, jumper between flange of level meter and level bridle and so on.
You can see an echo curve for above mentioned case. Just to resume:
As you see the measurement of level is correct but have some noizes and probe end peak when the bridle is filled. What can be a reason of it?
In reply to Andrzej Czechowski:
A - 1220 mm ;
B - 1100 mm;
C - 200 mm;
D - 1700 mm;
E - 340 mm;
Probe length - 1800 mm;
The length of bridle is approximately 2200 mm.