Siemens SITRANS LR 300 Instruction Manual page 59

slower response time is associated with greater reliability. Noisy applications or those
with agitators tend to be more manageable at slower response rates, as these make use
of filtering, echo verification, and longer Fail-Safe delay.
• echo verification: discriminates between agitator blades in motion (spurious noise)
and the target surface (true echo).
• Fail-Safe timer: establishes the period from the time a loss of echo (LOE) starts until
the Fail-Safe default (P071) is triggered. The P003 pre-set timer value can be
overridden by P070.
P004 Antenna
Identifies antenna configuration.
Values
P005 Units (F = 1)
Specifies units for programming and measurement.
Values
P006 Empty
Sets the distance in units (see P005) from
flange face to empty level.
Values
Empty level can be set at any distance desired,
not just actual empty.
P007 Span (F = 10m)
Sets the distance from empty (P006) to full /
100% level.
Values
Full level can be set at any measurement above the empty level.
Note:
After these start-up parameters are configured, set Parameters P837 and P838.
7ML19985CL02
(F = 240)
240 factory setting for all antenna types
241 rod + 50mm PTFE (Teflon) extension
242 rod + 100mm PTFE (Teflon) extension
1 meters
2 centimeters
3 millimeters
4 feet
5 inches
(F = 10m)
----- # units set in P005
----- # units set in P005
SITRANS LR 300 – INSTRUCTION MANUAL Page 57