Aanderaa DCPS 5400 Operating Manual page 122

Page 122
Binary: xxxx11xxxxxxxxxx
10 and
11
Hexadecimal: xCxx
Binary: xxx1xxxxxxxxxxxx
12
Hexadecimal: 1xxx
Binary: xx1xxxxxxxxxxxxx
13
Hexadecimal: 2xxx
Binary: x1xxxxxxxxxxxxxx
14
Hexadecimal: 4xxx
Binary: 1xxxxxxxxxxxxxxx
15
Hexadecimal: 8xxx
The cross correlation is normally close to 0.5, high limit is 0.6
1)
Indicates high single ping standard deviation on horizontal speed.. Narrowband and Broadband have different limits.
2)
The limit input is set as single ping standard deviation per meter since it is dependent on the cell size (and pulse length).
The limits for Broadband are 10, 30 and 50 cm/s. The limits for narrowband are 60, 80 and 100 cm/s. These limits are
used for a 1 meter cell (and pulse). The standard deviation limits used are calculated from these as follows, SP Stdev
limit = SP Stdev per meter limit/sqrt(cellsize*pulselength). Broadband uses a fixed pulse length = 1m. In narrowband the
pulse length follows the column with the smallest cell size. If for example narrowband with 2m cell size and 2m pulse
length, the single ping standard deviation limits becomes 30, 40 and 50 cm/s.
The cell can have been configured to be behind the instrument or very close to the instrument. This can also change
3)
during the deployment dependent on water level changes and sensor tilt.
The illegible zone: if surfaced referred column, approximately 10% of the distance from surface to the instrument is
4)
contaminated by side lobes.
Cells can have been configured to be too far away. Tilting of the instrument can also result in out of range on some of
5)
the beam cells.
Table 5-7: Cell State2 (For SW version 8.3.6. and newer. For older version see previous version.)
Cell State2 bits
Bit no Bit pattern (x don't care)
Binary: xxxxxxxxxxxxxxx1
0
Hexadecimal: xxx1
Binary: xxxxxxxxxxxxxx1x
1
Hexadecimal: xxx2
Binary: xxxxxxxxxxxxx1xx
2
Hexadecimal: xxx4
Binary: xxxxxxxxxxxx1xxx
3
Hexadecimal: xxx8
Binary: xxxxxxxxxxx1xxxx
4
Hexadecimal: xx1x
July 2019 – TD 304 OPERATING MANUAL – Doppler Current Profiler Sensor
Cell has High vertical current, above high vertical limit 3, default 30
cm/s
Cell inside blanking zone
Cell inside illegible zone
Cell out of range
5)
Data not ready
Beam1 cell inside blanking zone
Beam2 cell inside blanking zone
Beam3 cell inside blanking zone
Beam4 cell inside blanking zone
Beam1 cell out of range (too far away)
3)
4)
Meaning
1)
1)
1)
1)
2)