Siemens LR250 Instruction Manual page 105

2.8.6. Echo Quality
2.8.6.1.
Indicates echo reliability: higher values represent better echo quality. The
display shows the echo confidence of the last measurement. Echo
Threshold (2.8.4.3.) defines the minimum criterion for echo confidence.
Values (view only)
Related Parameters
Open the menu Device – Echo Profile Utilities and click on the tab Echo
Profile.
2.8.6.2.
Displays the absolute strength (in dB above 1 μV rms) of the echo selected
as the measurement echo.
Values (view only)
Open the menu Device – Echo Profile Utilities and click on the tab Echo
Profile.
2.8.6.3.
Displays the average ambient noise (in dB above 1 μV rms) of a noise
profile. Noise level is a combination of transient noise and receiving
circuitry. After a measurement, the values from the previous noise shot will
be displayed.
7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL
Confidence
0 to 99
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Echo Threshold (2.8.4.3.)
Echo Strength
–20 to 99
Noise Average
Shot not used
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