Tvt (Time Varying Threshold) Adjustment Parameters (P830 To P839) - Siemens sitrans PROBE LU Instruction Manual

TVT (Time Varying Threshold) Adjustment Parameters
(P830 to P839)
First SITRANS Probe LU learns the echo profile. Then the learned profile, or part of the
learned profile, is used to screen out false echoes.
The following parameters are for authorized Siemens Milltronics Service personnel or
technicians familiar with Siemens Milltronics echo processing techniques. View the echo
profile first, before attempting to modify these parameters.
P830 TVT Type
Selects the TVT Curve used.
Values
Altered By
Related
Select the TVT type which gives the highest confidence (P805) under all level conditions.
Use this parameter with caution, and do not use TVT Slopes with the F (First) or bLF (best
of Largest or First echo) Algorithm (P820).
P831 TVT Shaper
Note:
This parameter is for use by Siemens Milltronics Service personnel.
Turns the TVT Shaper ON or OFF.
1.
For more detail, see
7ML19985HT01
1 * TVT Short Curved
2 TVT Short Flat
3 TVT Long Flat
4 TVT Long Smooth Front
5 TVT Long Smooth
6 TVT Slopes
7 TVT Smooth
• P002 Material
• P805 Echo Confidence
TVT (Time Varying Threshold) curves
SITRANS Probe LU – INSTRUCTION MANUAL
1
on page 82.
Page 57