Siemens LU01 Benutzerhandbuch

7ML19985BE02

SITRANS LU01 – INSTRUCTION MANUAL

Page 77

6.

Press ARROWS 

 

 to change the bias value of the breakpoint, –50 to 50.

7.

Press ENTER 

.

8.

Press TRANSDUCER

 to update the scope display with the new TVT.

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 should only be used if increased Near Blanking (P800) would extend farther 
than desired into the measurement range. 

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. 

Enter the minimum slope (in dB/s) for the middle of the TVT Curve.

Use this feature to adjust the slope declination, and use it in conjunction with TVT Start 
Duration (when a long flat TVT Type is selected) to ensure the TVT Curve remains above 
the false echoes in the middle of the Echo Profile. Alternatively, if TVT Type is set for TVT 
Slopes (P830 = 6), preset is 2000. Use this parameter to adjust the slope declination when 
TVT type is set to TVT slopes (P830=6).

Range: -30 to 225
Preset: 50

•

P800 Near Blanking

•

P834 TVT Start Duration

Range: 0 to 9999
Preset: 30

•

P833 TVT Start Min

•

P835 TVT Slope Min

Range: 0 to 9999
Preset: 200

•

P830 TVT Type

•

P834 TVT Start Duration