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) 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.
- Currents
Highlights
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Up to 90 m current profiling range
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Capable of measuring surface or bottom currents
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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 400 kHz Aquadopp Z-Cell, designed for current measurements up to a 90m 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* |
90 m |
Cell size |
1-8 m |
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) |
|
|
** Consult instrument SW |
Distance to measurement volume |
0.05 - 2.5 m |
Cell size |
0.2 - 1.5 m |
Velocity range (Horizontal) |
±5 m/s |
Transducer acoustic frequency |
2 MHz |
Number of beams |
2 |
Sampling |
Same as velocity |
Resolution |
0.5 dB |
Dynamic range |
90 dB |
Transducer acoustic frequency |
400 kHz |
Number of beams |
3 (see GA drawing for angles) |
Beam width |
1.9° (3.8° 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 |
Agnostic |
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 |
< 10 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 |
701 mm |
Weight in air (without batteries) |
3900 g |
Weight in water (without batteries) |
60 g |
S4VZ |
Shallow water, 400 kHz, Vertical orientation, Z-cell Profiler |
Standard housing for two batteries or one 100Wh package
Short housing for one battery
Extra short housing for no batteries
9 MB of memory on motherboard (M8)
4 GB SD card data logger
16 GB SD card data logger
Pressure sensor, 0-10 m
Pressure sensor, 0-20 m
Pressure sensor, 0-30 m
Pressure sensor, 0-50 m
Pressure sensor, 0-100 m
Pressure sensor, 0-200m
10m RS232 polyurethane cable with 8-pin inline connector and USB converter
20m RS232 polyurethane cable with 8-pin inline connector and USB converter
30m RS232 polyurethane cable with 8-pin inline connector and USB converter
40m RS232 polyurethane cable with 8-pin inline connector and USB converter
50m RS232 polyurethane cable with 8-pin inline connector and USB converter
10m RS422 polyurethane cable with 8-pin inline connector and USB converter
20m RS422 polyurethane cable with 8-pin inline connector and USB converter
30m RS422 polyurethane cable with 8-pin inline connector and USB converter
40m RS422 polyurethane cable with 8-pin inline connector and USB converter
50m RS422 polyurethane cable with 8-pin inline connector and USB converter
Compass and tilt sensor
Without compass and tilt sensor
New features, fixes and functionality
Also compatible with Z-cell. New features, fixes and functionality
Deployment planning, execution and recovery
Display of profiler data. Can be used in combination with Prof2NDP
The standard deployment software for Nortek Aquadopp and Aquadopp Profiler 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.
Data conversion
Processing of waves
Data processing and ready-to-print reporting software. Request quote for license
Wave and current profile data visualization and processing software for online applications. Request quote for license
Analysis and processing of currents and directional waves. Request quote for license
Analysis and processing of current profiles. Request quote for license
Cable for external battery canister to 8-pin inline connector
Cable RS232 polyurethane with 8-pin inline connector and USB converter
Cable RS422 polyurethane with 8-pin inline connector and USB converter
Battery, 13.5 V - 50 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.
Battery, 13.5 V - 100 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.
Battery, 12 V - 165 Wh, lithium
This battery can be used inside the main canister of your Nortek instrument.
Battery canister, plastic with 4*18 AA pack w/cable 8-pin inline (300m rating)
Battery pack, 5-pack, 13.5 V - 50 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.
Battery pack, 10-pack, 13.5 V - 50 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.
Battery pack, 5-pack, 13.5 V - 100 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.
Battery pack, 10-pack, 13.5 V - 100 Wh, alkaline
This slim battery can be used inside the main canister of your Nortek instrument.
Battery pack, 5-pack, 12 V - 165 Wh, lithium
This battery can be used inside the main canister of your Nortek instrument.
Battery pack, 10-pack, 12 V - 165 Wh, lithium
This battery can be used inside the main canister of your Nortek instrument.
