Siemens 7ML5431 - Page 131

Parameter reference
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
131
Sampling Up (2.8.5.2.)
Specifies the number of consecutive echoes that must appear above the echo currently
selected, before the measurement is accepted as valid.
Values
Range: 1 to 50
Default: 5
Sampling Down (2.8.5.3.)
Specifies the number of consecutive echoes that must appear below the echo currently
selected, before the measurement is accepted as valid.
Values
Range: 1 to 50
Default: 2
Echo Quality (2.8.6.)
Confidence (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)
0 to 99
----
Shot not used
Related Parameters
Echo Threshold (2.8.4.3.)
Open the menu Device – Echo Profile Utilities and click on the tab Echo Profile.
Echo Strength (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)
-20
to
99
----
Shot not used
Open the menu Device – Echo Profile Utilities and click on the tab Echo Profile.
Noise Average (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.