User's Manual

7ML19985JE03 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 93
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Parameters
2.8.5.2. Sampling Up
Specifies the number of consecutive echoes that must appear above the
echo currently selected, before the measurement is accepted as valid.
2.8.5.3. Sampling Down
Specifies the number of consecutive echoes that must appear below the
echo currently selected, before the measurement is accepted as valid.
2.8.6. Echo Quality
2.8.6.1. Confidence
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.
Open the menu Device – Echo Profile Utilities and click on the tab Echo
Profile.
2.8.6.2. Echo Strength
Displays the absolute strength (in dB above 1 µV rms) of the echo selected
as the measurement echo.
Open the menu Device – Echo Profile Utilities and click on the tab Echo
Profile.
2.8.6.3. Noise Average
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.
Values
Range: 1 to 50
Default: 5
Values
Range: 1 to 50
Default: 2
Values (view only)
0 to 99
---- Shot not used
Related Parameters
Echo Threshold (2.8.4.3.)
Values (view only)
–20 to 99