Siemens SITRANS Probe LU Quick Start Manual page 15

4. Select measurement units (P005)
meters
1 *
centimeters
2
millimeters
Values 3
feet
4
inches
5
5. Set process empty level (P006: Empty)
Note:
• P006 and P007 are interlinked: see
notes attached to P007.
Range
Values
Default
Empty can be set to any distance: not necessarily
the bottom of the tank.
6. Set measurement range (P007: Span)
Range
Values
Default
.
Notes:
• Setting P006 resets Span, if it has not previously been set to a different value.
• The default setting for Span is based on Operation (P001) and Empty (P006). Span is set to
Empty minus 110% of Blanking distance
this case, Span is set to Empty distance.
• Always prevent the monitored surface from approaching within 0.3 m (1 ft) of the
transducer face. This provides a 0.05 m (2") safety margin, as 0.25 m (10") is the minimum
distance detectable.
7. Minimize false reflections: Set P838 (Auto False Echo Suppression Distance)
Use P838 and P837
together: follow the
instructions for P837.
1.
Default setting for Blanking is 0.25 m (10").
A5E32168031
0.0000 to 6.000 m (20 ft) or
0.0000 to 12.000 m (40 ft)
Maximum range
1
0.0000 to 6.000 m (20 ft) or
0.0000 to 12.000 m (40 ft)
5.725 m (18.78 ft) or
11.725 m (38.47 ft)
1
, unless Operation is set to distance (P001=3). In
Range
(depends on model)
Value
Default
SITRANS Probe LU (HART) – QUICK START MANUAL
Level Setup
transducer
face
Span
100%
P007
P006
Empty
0%
Span can be set at any distance above
Empty level
Maximum range:
0.000 to 6.000 m (20 ft) or
0.000 to 12 m (40 ft)
1.000 m (3.28 ft)
Level
Page EN-13