User's Manual

Page 102 SITRANS LR560 (FF) – INSTRUCTION MANUAL 7ML19985LY01
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Parameters
2.4.8.4. Shaper Mode
Enables/disables TVT Shaper (2.4.9.).
2.4.9. TVT Shaper
Adjusts the TVT (Time Varying Threshold) at a specified range (breakpoint
on the TVT). This allows you to reshape the TVT to avoid unwanted echoes.
There are 120 breakpoints arranged in 14 groups.
To access TVT shaper via AMS Device Manager see TVT Shaper 1 on
page 55.
To use TVT shaper via local operation:
a) Go to Shaper Mode (2.4.8.4.) and select option ON.
b) In TVT shaper, go to Shaper 1-9 (2.4.9.1.).
c) Open Shaper 1 and enter the TVT Offset value (between –50 and
+50 dB).
d) Go to the next Shaper point and repeat step (c) till all desired
breakpoint values have been entered.
2.4.9.1. Shaper 1-9
2.4.9.2. Shaper 10-18
2.4.9.3. Shaper 19-27
2.4.9.4. Shaper 28-36
2.4.9.5. Shaper 37-45
2.4.9.6. Shaper 46-54
2.4.9.7. Shaper 55-63
2.4.9.8. Shaper 64-72
2.4.9.9. Shaper 73-81
2.4.9.10. Shaper 82-90
2.4.9.11. Shaper 91-99
2.4.9.12. Shaper 100-108
2.4.9.13. Shaper 109-117
2.4.9.14. Shaper 118-120
Options
ON
*
OFF
Notes:
• Shaper Mode (2.4.8.4.) must be turned ON in order for TVT shaper
breakpoints to be transferred
• We recommend using AMS Device Manager to access this feature.
• Put LTB Block into OOS Mode before changing settings, then back
into AUTO mode to display TVT.
Values
Range: –50 to +50 dB
Default: 0