Algorithm (P820) - Siemens SITRANS Probe LU Operating Instructions Manual

P807 Noise
Displays the average and peak ambient noise of a noise profile (in dB above 1 μV rms)
as x.y. Noise level is a combination of transducer acoustic noise and receiving circuitry
noise.
Values (view only)
After a measurement, the values from the previous noise shot will be displayed. Press the
measurement key

Algorithm (P820)

P820 Algorithm
Selects the algorithm to be applied to the echo profile to extract the true echo.
Values
For more clarification on the different options, please contact your local representative.
P825 Echo marker
The point on the primary echo on which the measured value is based. The value is
entered in percent of echo height, which allows the Echo Lock Window to be set so that it
intersects the Echo Profile at the sharpest rising portion of the Echo Profile.
Values
A5E32337695 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS
Format
to get a new reading that will update the noise profile.
L
3
argest echo (L)
4 First echo (F)
8 * best of Largest or
12 true First echo (tF)
Range 5 to 95%
Default 50 (%)
x:y
x = average (range: –20 to 99)
y = peak (range: –20 to 99)
F
irst echo (bLF)
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