7ML19981BC01
89
InterRanger
DPS300
To select another transducer . . .
Pressing sets the point number to
transducer. Select desired transducer
point.
Note:
P831, TVT shaper, must be ‘on’.
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 9000) is used in conjunction with TVT Start Duration (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
P836 Max Start Echo (NEW)
Sets the maximum height of the ringdown signal.
Values:
0 to 225 dB (preset = 180 dB)
P841 Long Shot Number
Enter the number of long shots to be fired (and results averaged) per transmit
pulse.
Values:
0 to 200
e.g. return to transducer 1