A5E32337695 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS Page 25
Operation
5. Set process empty level (P006: Empty)
Enter the distance from the transducer face to
process empty level (Empty) using units sets in
P005. Empty can be set to any distance: not
necessarily the bottom of the vessel.
6. Set the range to be measured
(P007: Span)
Enter the distance between Empty (process empty level) and Span (process full level), in
the units set in P005. Span can be set at any distance above the empty level.
1
Values
Range
(depends on mode)l
0.0000 to 6.00 m (20 ft) or
0.0000 to 12 m (40 ft)
Default
maximum range:
6.000 m (20 ft), or 12.000 m (40 ft)
Note: P006 and P007 are interlinked: see
notes attached to P007.
Values
Range
(depends on model
0.0000 to 6.00 m (20 ft) or
0.0000 to 12 m (40 ft)
Default 5.725 m (18.78 ft), or 11.725 m (38.47 ft)
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
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, unless Operation is set to distance
(P001 = 3). In 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 the minimum detectable
distance is 0.25 m (10").
1.
Blanking distance is 0.25 m (10"). See
Blanking Distance
on page 89 for more details.
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