Page 56 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS A5E32337695
Parameters
Communications (P799)
P799 Communications Control
Enables the read/write access to parameters via remote communications.
Echo Processing (P800 to P825)
The following parameters are for authorized Siemens Service personnel or technicians
familiar with Siemens echo processing techniques. View the echo profile first, before
attempting to modify these parameters.
P800 Near Blanking
1
Defines the distance from the transducer face to be ignored by the transmitter/receiver.
To extend the blanking beyond the minimum default, enter a value in the units selected in
P005.
Values
0 Read only
1*
Read/write
2
Restricted access – read only except for P799 which is read/write
Notes:
• P799 controls the access if you are using a HART master.
• P000 controls the lock access if you are using the Siemens handheld programmer.
1.
For more details, see
Blanking Distance
on page 89.
Values
Range
(depends on model)
0.000 to 6.000 m (20 ft) or
0.000 to 12 m (40 ft)
(units selected in P005)
Default 0.250 m (0.820 ft)
Related
P006 Empty
P007 Span
P838 Auto False-Echo Suppression Distance
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