
C
Y
K
Tech
www.ceyeko.com
Page 14
4.2.2 Select Measuring Range:
Measuring range is decided by the range of ultrasonic probe which is subject to the
site working environment, object to be measured and temperature, etc. Decide the
measuring range needed based on the table below.
Liquid Surface
Attenuation
Multiple
Attenuation
Percentage
Magnification of
Measuring Range
Stable
0dB
0%
Magnification is
unnecessary
Ripple
5...10dB
50~67%
1 times of the
measuring range
Major fluctuation (for
example, there is
mixing blade)
10...20dB
90%
3 times of the
measuring range
Solid Material Surface
Attenuation
Multiple
Attenuation
Percentage
Magnification of
Measuring Range
Hard, rough (such as gra-
nular rubber)
40dB
99%
10 times of the
measuring range
Soft (such as pulverized
coal, cement and coal
ash)
40...60dB
99
~
99.9%
Use not
recommended
With Dust
Attenuation
Multiple
Attenuation
Percentage
Magnification of
Measuring Range
None
0dB
0%
Magnification is unnecessary
Little
5dB
50%
1 times of the
measuring range
Summary of Contents for LUDP
Page 12: ...CYK Tech www ceyeko com Page 12...