Siemens sitrans LU01 Manuál s instrukcemi Strana 74

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Page 68 SITRANS LU01 – INSTRUCTION MANUAL 7ML19985BE02
Parameters
Use this feature if the surface is reported to be near the transducer face but is in fact
much further away. Extend this value when changing transducer location, mounting, or
aiming.
Please note that changing the Near Blanking cannot correct measurement problems.
Ensure that Span (P007) < Empty (P006) minus Near Blanking (P800).
P801 Range Extension
Used if incorrect level is reporated (when material level is lower than Empty, P006).
Range extension is the distance in Units (P005) or % of Span (P007) beyond Empty, which
is still ultrasonically measureable. If empty is substantially higher than the actual vessel
bottom, increase Range Extension such that Empty plus Range Extension is greater than
the transducer to vessel bottom distance.
P802 Transducer with Submergence Shield
Used when the transducer is expected to be submerged on occasion.
When a transducer with a submergence shield is submerged, the shield traps an air
pocket that creates a special echo. The SITRANS LU01 recognizes the echo and
advances the reading to the highest level and operates displays and outputs accordingly.
This feature is effective for when power is returned while the transducer is submerged.
P803 Shot / Pulse Mode
Determines what type of ultrasonic shots are fired.
Values
Range: 0.000 to 9999
Preset: 20% of Span (P007)
Related
P005 Units
P006 Empty
P007 Span
P004 Transducer
Values
0*Off
1 Submergence transducer
Related
P006 Empty
P071 Failsafe Material Level
•Relays
Values
1Short
2 * Short and long
Related
P006 Empty
P805 Echo Confidence
P804 Confidence Threshold
P852 Short Shot Range
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