P-85 echo processing algorithms for long pulses
( for short pulses, a fixed algorithm is automatically selected )
enter: 1 = best echo of first and largest ( F )
2 = first echo
3 = largest echo
P-86 TVT curve
enter: 1 = standard ( F )
2 = flat
typical usage; solids applications where low confidence is obtained,
using flat echo extraction may yield higher confidence.
P-87 range extension
used to extend the measurement range into the far end blanking.
In applications where the zero level does not correspond to the
bottom of the vessel and it is desired to monitor this zone, the far end
blanking may need to be reduced. This is accomplished by entering a
range extension value as the percentage of P-3 which equals the
extra distance required. If it found that false echoes are appearing
ahead of the far end blanking zone, the range extension should be
decreased by reducing the factory set value of 20%.
enter, as percent of P-3, distance below 0 not blanked ( F = 20 )
P-88 number of transmit pulses
this parameter is used to select the number and duration of the
pulses to be transmitted per measurement.
enter: 1 = one short pulse only *
2 = one long pulse only **
3 = two long pulses and one short pulse
4 = one short pulse if target is within 1 m, or
one short pulse and two long pulses if target
is beyond 1 m ( F )
* CAbL LOE message inactive
** submergence detection inactive
PL-443 7 – 23