Overview
Need to collect accurate 3D currents very near the seabed or sea surface, in addition to a full water-column profile?
The Z-Cell (Zero Cell) 600 kHz Aquadopp allows current measurement to start right at the instrument’s level through an innovative approach: it has side-looking beams fully integrated into the instrument’s head, effectively removing the blanking distance normally applicable to ADCPs.
See the details of the Generation 2 Aquadopp updates in the release notes here.
- Currents
Highlights
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Up to 40 m current profiling range
-
Capable of measuring surface or bottom currents
-
Ideal for mean current measurements
Usage
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Mounted on bottom frames, with ability to also measure near-bed currents
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Mounted on surface buoys, with the ability to also measure surface currents
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Mean flow measurements with high focus on ease of use and simplicity
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Studies of tidal currents
Setup
The 600 kHz Aquadopp Z-Cell, designed for current measurements up to a 40m range, is set up using the Nortek deployment software, enabling users to customize measurement schemes and assess power requirements. The Z-cell functionality allows measurements at the level of the instrument head, eliminating the “blanking distance” at which most ADCPs cannot measure.
Deployment
Teams of all sizes can deploy an Aquadopp Z-Cell successfully thanks to its compact size. The instrument is optimal for deployments near boundaries such as the seabed or sea surface.
Data
Nortek postprocessing software and/or display software is available for review, visualization and processing of data, after deployment or in real time. The instrument can provide data from the level of the instrument as well as a full water column profile.
Nominal profiling range * |
40 m |
Cell size |
0.5-8m |
Maximum number of cells |
200 |
Minimum blanking |
0 m with Z-cell enabled |
Velocity range (along beam) |
±1 m/s, ±2.5 m/s, ±5 m/s |
Accuracy |
±1% of measured value ±0.5 cm/s |
Velocity range (horizontal) |
±2.3 m/s, ±5.75 m/s, ±11.5 m/s |
Horizontal velocity precision** |
Typ. 1cm/s |
Maximum sampling rate (output) |
1 Hz |
Wave measurement |
PUV (optional) |
* Depending on scattering conditions |
|
** Consult instrument SW |
Sampling |
Same as velocity |
Resolution |
0.5 dB |
Dynamic range |
90 dB |
Transducer acoustic frequency |
600 kHz |
Number of beams |
3 |
Beam width |
1.55° (3.1° total) |
Temperature: |
|
Temp. range |
-4 to +40 °C |
Temp. accuracy/resolution |
0.1 °C/0.01 °C |
Temp. time response |
<1 min |
Compass: |
Solid State Magnetometer |
Accuracy/resolution |
<2° for tilt <30°/0.01° |
Tilt: |
Solid State Accelerometer |
Accuracy/resolution |
0.2° for tilt <30°/0.01° |
Maximum tilt |
Full 3D |
Up or Down |
Automatic detect |
Pressure: |
Piezoresistive |
Range |
30 m / 100 m / 500 m |
Accuracy/Precision |
0.5% FS / 0.005% of full scale |
Capacity |
16 GB |
Accuracy |
±1 min/year |
Backup in absence of power |
4 weeks |
I/O |
RS-422 (Inquire for RS-232) |
Communication baud rate |
9600 Baud-1.2 Mbaud (default 115200 Baud) |
User control |
Nortek Deployment Software or direct ASCII commands, with binary or ASCII data output |
Operating system |
Cross platform |
Functions |
Deployment planning, instrument configuration, data retrieval and conversion. Online data display. |
DC input |
9-24 VDC |
Absolute maximum DC input |
26 VDC |
Maximum peak current |
4.5 A |
Power consumption |
Consult Nortek Deployment Software |
Sleep current |
< 40 uA |
Transmit power |
Adjustable |
Internal battery capacity |
1-3x 50 Wh (Alkaline) |
2-3x 165 Wh (Lithium) |
|
1-3x 76Wh (Li-Ion) |
|
Battery weight |
430g per 50 Wh (Alkaline) |
380g per 165 Wh (Lithium) |
|
300g per 76Wh (Li-Ion) |
Operating Temperature |
-5 to +40 °C |
Storage Temperature |
-20 to +60 °C |
Shock and vibration |
Shock: IEC 60068-2-27, Vibration: IEC 60068-2-64 |
EMC |
EN IEC 61000-6-2:2019, EN IEC 61000-6-4:2019 |
Depth rating |
500 m |
Bulkhead (Impulse) |
MCBH-8-FS Brass |
Cable |
PMCIL-8-MP on 5m (default) polyurethane cable |
POM, Naval Brass, Titanium Gr.5, Epoxy |
Maximum housing diameter |
75 mm |
Maximum length |
686 mm |
Weight in air (without batteries) |
3580 g |
Weight in water (without batteries) |
160 g |
Weight in air, short (without batteries) |
2980 g |
Weight in water, short (without batteries) |
610 g |
S4VZ |
Shallow water, 400 kHz, Vertical orientation, Z-cell Profiler |
Cable length |
0-10m; 10-50m; 50-500m |
Power wire gauge |
20AWG; 20AWG; 18AWG |
Hardware |
Standard; Standard; Long cable kit |
Input voltage |
9-24VDC; 24VDC +/-0,5; 48VDC +2/-5 |
Absolut maximum DC input |
26 VDC; 26 VDC; 51 VDC |
Communication |
RS232/RS422/115200; RS232/RS422/115200; RS422/115200 |
9 MB of memory on motherboard (M8)
4 GB SD card data logger
16 GB SD card data logger
New features, fixes and functionality
The standard deployment software for Nortek Aquadopp, Aquadopp Profiler and AWAC instruments purchased after October 2023.
The software can be launched from your web browser, installed from Microsoft Store or downloaded as an offline installer file.
Post-processing software for Aquadopp Generation 2, AWAC Generation 2, and Signature series instruments.
