Siemens sitrans LU10 Instruction Manual page 74

P833 TVT START MIN
Use this feature to adjust the TVT Curve height to ignore false echoes (or pick up
true echoes) near the start of the Echo Profile.
Enter the minimum TVT Curve start point (in dB above 1 µV RMS).
This feature (preset to 45) should only be used if increased Near Blanking would
extend farther than desired into the measurement range.
values: -30 to 225
P834 TVT START DURATION
Use this feature in conjunction with TVT Start Min (P833) to ignore false echoes
(or pick up true echoes) near the start of the Echo Profile.
Enter the time (in ms) for the TVT Curve to decrease from the TVT Start Min
(P833) point to the TVT Curve baseline.
values: 0 to 9999
P835 TVT SLOPE MIN
Enter the minimum slope (in dB / s) for the middle portion of the TVT Curve.
This feature (preset to 200) is used in conjunction with Minimum TVT Start Slope
(when a long flat TVT Type is selected) to ensure the TVT Curve remains above
false echoes which appear in the middle of the Echo Profile.
Alternatively, if TVT Type is set for "TVT Slopes" (P830 = 6), this value is preset to
2000. Use this feature to adjust the slope declination, as required.
values: 0 to 9999
P840 SHORT SHOT NUMBER
Enter the number of short shots to be fired (and results averaged) per transmit
pulse.
values: 0 to 100
P841 LONG SHOT NUMBER
Enter the number of long shots to be fired (and results averaged) per transmit
pulse.
This value is automatically altered when Measurement Response (P003) is
altered. (See
values: 0 to 200
Page 70
Technical Reference
SITRANS LU10 – INSTRUCTION MANUAL
Measurement Response).
7ML19985AN02