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Aanderaa SeaGuard II DCP

The brand new acoustic profiler joining the SeaGuard family. It features innovative development of the acoustic profiling capacity and an exceptional ability to collect high quality current information on moving and tilting moorings. Available as a self-recording instrument, it also integrates unique real time features to meet your application needs.

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The SeaGuardII is a smart data hub that combines the SeaGuard electronics with the advanced management firmware of Aanderaa SmartGuard data hub.

SeaGuardII DCP is a 600kHz frequency profiler with multi-sensor capability. By design, we offer increased deployment time, optimized configuration flexibility and unique features to cope with demanding upper ocean environments.

Optional parameters are available using Aanderaa range of smart sensors that include temperature, pressure, conductivity, oxygen, wave, tide and turbidity. In addition the SeaGuardII has 4 analog inputs, 2 serial ports with power control and direct connection for real time data transmission unit.

Applications:

  • Buoy mounted
  • Hyd/Met systems
  • In mooring line with upside down possibility
  • Two DCPS sensors connected to one instrument
  • Ocean observatory with sensors string
  • Bottom mounted
  • Multiparameter ocean observations

Increased deployment time:

  • 24 months deployment at 30min sampling interval
  • Reduced power consumption with broadband technology
  • Increased internal battery capacity
  • Optional user assembled battery
Velocity profile measurement    
Acoustic frequency:
600 kHz
  
Typical profiling range:
Broadband: 30-70m
  
Narrowband 35-80m
1)
Cell size:
0.5m - 5m
  
Cell overlap:
0-90%
  
Velocity range:
Narrowband: 0-500 cm/s other range on request
Broadband: 
 0-400 cm/s  
Velocity accuracy:
0.3 cm/s or ±1,5% of reading
  
Velocity resolution:
 0.1 cm/s  
Velocity precision:
 <3,3cm
2)
Ping rate:
 Up to 10Hz
Cell positioning:
Static (instrument referred)
3)
 
Dynamic (surface referred)
  
 
Multiple columns
  
Number of columns:
3 simultaneous columns + Surface cell
 3)
Max. number of cells:
150 total, 75 for first column, 50 for second and 25 for third
Blanking zone:
1m
  
Transducers
    
Number of beams:
4
table:
Advanced autobeam algorithm
4)
Beam angle:
25°
  
Beam width:
2.5°Echo intensity
  
Echo Intensity
Dynamic range:
> 50dB
  
Resolution:
< 0.01dB
  
Precision:
< 0.01dB
  
Tilt and compass
    
Type:
Internal solid state
  
Pitch / roll range:
 ± 90°
5)
Tilt / Heading accuracy:
± 1.5° / ± 3.5°
  
Tilt / Heading resolution:
< 0.1°
  
Embedded temperature sensor
 
Range
-4- +40°C
Resolution
0,001°C
  
Accuracy
± 0,05°C
  
Response Time (63%):
<5 sec
  
Communication and recording
    
Data storage:
2GB SD Card exchangeable and remote downloadable
Remote operation:
Device layout
  
 
Configuration
  
 
Recording start/stop
  
 
Status monitoring
  
 
Available telemetry
  
 
Cable, radio modem, GPRS,
  
 
GOES,
  
 
GSM, Iridium
 
Configuration and real time data software:
 
RT Collector (for Windows®XP, Windows®7)
Configuration interface:
USB / RS232 / RS422
  
Recording system:
Multiple sensors groups with
  
individual recording interval
  
and activation, immediate,
  
aligned or delayed start.
  
Recording interval:
From 30sec to 3hrs
  
Power
External power supply:
  
12-30V
  
Internal battery:
    
2 batteries inside the instrument:
Alkaline 3988: 9V, 15Ah
  
Lithium 3908: 7V, 35Ah
Current drain example:
4,2 mA
6)
Environmental
    
Depth rating:
300m
  
Operating temperature:
-5 to +40°C
  
Dimensions:
D: 160mm
  
H: 585mm
  
Weight:
    
In Air
10,8 kg
  
In Water
3,6 kg
  
Materials:
PET, PUR, Titanium, Stainless
  
steel 316
  
Optional sensors
    
Temperature Sensor 4060
    
Range:
-4-36°C (32-96.8°F)
7)
Resolution:
0.001°C (0.0018°F)
  
Accuracy:
±0.03°C (0.054°F)
  
Response Time 63%:
< 2 seconds
  
Conductivity Sensor 4319
    
Range:
0-7.5 S/m
  
Resolution:
0.0002 S/m
  
Accuracy
4319 A:
  
±0.005 S/m
  
4319 B:
  
±0.0018 S/m
  
Response Time:
<3s
8)
Pressure Sensor 4117
    
Resolution:
<0.0001% FSO
  
   
Accuracy:
±0.01% FSO
  
   
4117A Range:
0 – 1000kPa (0 – 145 psia)
  
   
4117B Range:
0 – 4000kPa (0 – 580 psia
  
Wave and Tide Sensor 5217/5218
  
Resolution :
<0,0001% FSO
  
Accuracy:
±0,01% FSO
  
Sampling rate:
2Hz, 4Hz
  
Tide:
5217 Range:
  
0 – 400kPa (0 – 58 psia)
  
5217A Range:
  
0 – 1000kPa (0 – 145 psia)
  
5217B Range:
  
0 – 4000kPa (0 – 580 psia
  
Wave:
No. of samples:256, 512, 1024, 2048
  
5218 Range:
  
0 – 400kPa (0 – 58 psia)
  
5218A Range:
  
0 – 1000kPa (0 – 145 psia)
  
Turbidity Sensor 4112:
0-5V Analog Output
  
4 models:
0-25, 0-125, 0-500, 0-2000FTU
  
   
Oxygen Optode 4835/4330
    
Concentration Air Saturation
    
Measurement Range:
0 – 500 μM 0 - 150%
  
Resolution:
< 1 μM 0.4%
Accuracy:
<8 μM or 5%
10)
With multipoint calibration:
 <±2 μM or ±1.5%  
Response Time (63%):
4330F (fast response foil) <8 sec
  
4835/4330 (standard foil) <25 sec
  
Analog and serial inputs:
  
Analog:
 4 channels 0-5V  
   
Serial:
2 channels with sensor and power
  
switching one RS232 port and one
  
RS422
12)
   
1. Typical range with normal backscatter conditions. The measurement range is highly dependent on the scattering conditions. For waters with low amount of scatters, expect a shorter range than for waters with a high amount of scatters
  
2. Standard deviation For the horizontal velocity in broadband mode, 3m cell size
  
3. Requires pressure sensor 4117
  
4. Optimal selection of the the best 3-beams conbination to avoid interference and beam failures
  
5. Compensation calibrated up to ± 35°
  
6. In Broadband mode, 30min interval, 20*2 pings, 2m cell size, 20 cells
  
7. Extended range available on request.
    
8. Dependent on flow through cell bore
    
9. Multipoint calibration available on request: 40 points at 5 temperatures and 8 oxygen concentrations
  
10. Requires salinity compensation for salinity < 1mS/cm
  
11. Within calibrated range 0-120%
    
12. The serial ports may be used either as serial sensor inputs or serial real-time output