Siemens sitrans PROBE LU - AIFB1 Unit, Filter, and Function; AIFB1 Batch Information

7ML19985JB02 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL Page 91
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H: Parameters
2.7.4.2. Sampling down
1
(default 2)
Once echo is outside the window, a specified number of consecutive
echoes must appear below the echo locked onto, before measurement is
accepted as valid.
2.7.4.3. Window
1
(default 0)
A "distance window" centered on the echo, used to derive the reading.
When a new measurement is in the window, the window is re-centered
and the reading is calculated (see Display before Auto False Echo
Suppression on page 94 for an illustration).
When the value is 0, the window is automatically calculated after each
measurement.
• For slower Measurement Response values, the window is narrow.
• For faster Measurement Response values, the window becomes
progressively wider.
2.7.4.4. Window Used
1
The actual size of the window (whereas Window refers to the designed
size of the window.
2.7.5. Range
2.7.5.1. Near Range (LOW RANGE): (default value 0.25 m)
Minimum distance from the reference point
2
beyond which an echo
should be considered valid. (This is sometimes referred to as Blanking. )
2.7.5.2. Far Range (HI RANGE): (default 6 m or 12 m, depending on unit)
Maximum distance from the reference point
2
, within which an echo
should be considered valid.
1.
This parameter is for use only by Siemens service technicians.
Note: The echo lock window is stored as standard sample, but
displayed in the engineering units selected to display level. Any value
entered for the echo lock window will be rounded to the nearest
sample.
2.
The transducer face.
Hand programmer values
Range: 0 to 20 m
Note: Far Range can extend beyond the bottom of the tank.
Hand programmer values
Range: 0 to 20 m