Siemens SITRANS LR200 7ML5422 Operating Instructions Manual page 118

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 40 breakpoints
arranged in 5 groups. (We recommend using SIMATIC PDM to access this feature.)
To use TVT Shaper via SIMATIC PDM:
● Open the menu Device – Echo Profile Utilities and click on TVT Shaper. For more detail
see TVT Shaper (Page 117).
To use TVT Shaper via HMI (Human Machine Interface):
1. Go to Breakpoint 1-9 (2.8.8.1.) (Page 118)
2. Open Shaper 1 and enter the TVT Offset value (between –50 and 50).
3. Go to the next Shaper point and repeat steps c) and d) till all desired breakpoint values
have been entered.
Breakpoint 1-9 (2.8.8.1.)
Values
Factory setting
Breakpoint 10-18 (2.8.8.2.)
Values
Factory setting
Breakpoint 19-27 (2.8.8.3.)
Values
Factory setting
Breakpoint 28-36 (2.8.8.4.)
Values
Factory setting
Breakpoint 37-40 (2.8.8.5.)
Values
Factory setting
118
Range: –50 to 50 dB
0 dB
Range: –50 to 50 dB
0 dB
Range: –50 to 50 dB
0 dB
Range: –50 to 50 dB
0 dB
Range: –50 to 50 dB
0 dB
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE