OCEANOGRAPHY 06/29/2024

Aquadopp Profiler 2 MHz - 500 m, Generation 2

Small and compact, short-range current profiling; option for PUV wave
measurements

The Aquadopp Profiler is a highly versatile Acoustic Doppler Current Profiler (ADCP) available in three profiling
range options, from < 1 m to > 85 m. The 2 MHz version has a current profiling range of up to 10 m. Designed for
simple yet powerful operation, this current profiler is packed with features used by engineers and researchers to
enable accurate and effective hydrodynamic data collection in a variety of environmental conditions.

The upgraded Aquadopp Profiler design offers improved noise immunity as well as 6% broadband measurements
and “hibernation mode” between measurements, enabling precise data collection with lower power consumption.
Increased internal battery storage extends potential deployment time.
Highlights Applications

Up to 10 m current profiling range Near-bed current profiles with fine vertical

resolution
Optional right-angle head for measurements
close to boundaries or in shallow water Mean flow measurements with a focus on
ease of use and simplicity
Pressure-based (PUV) directional wave
measurements Measurements in areas with strong
variations in flow speeds
LED blinks when pinging for peace of mind
during deployment Projects with needs for both high-resolution
and normal-range current measurements
with optional HR

Measurements of waves and currents from a

single instrument

Studies of tidal currents

Technical specifications

Water velocity measurements

Nominal profiling range 10 m

Cell size 0.1-2 m

Maximum number of cells 200

Minimum blanking 0.2 m

Velocity range (along beam) ±1 m/s, ±2.5 m/s, ±5 m/s

Velocity range (horizontal) ±2.3 m/s, ±5.75 m/s, ±11.5 m/s

Accuracy ±1% of measured value ±0.5 cm/s

Horizontal velocity precision (consult Typ. 1 cm/s

instrument SW)

Maximum sampling rate (output) 1 Hz

Wave measurements PUV (optional)

Echo intensity
Sampling Same as velocity

Resolution 0.5 dB

Dynamic range 90 dB

Transducer acoustic frequency 2 MHz

Number of beams 3 (see GA drawings for angles)

Beam width 0.85° (1.7° total)

HR option
Maximum profiling range 4.0 m

Cell size 0.01-0.13 m

Minimum blanking 0.1 m

Maximum number of cells 256

Velocity range 3 cm/s - 0.65 m/s

Range velocity limitations Product of profiling range and velocity should not exceed 0.12
m2/s

Accuracy ±1% of measured value ±0.5 cm/s

Max. sampling rate 8 Hz

Sensors
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°

 Sensors
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

Data recording
Capacity 16 GB

Real-time clock
Accuracy ±1 min/year

Backup in absence of power 4 weeks

Data communications
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

Software
Operating system Agnostic

Functions Deployment planning, instrument configuration, data retrieval

and conversion. Online data display

Power
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

Batteries
Internal battery capacity 1-3 x 50 Wh (Alkaline); 2-3 x 165 Wh (Lithium), 1-3 x 76 Wh
(Li-Ion)

Battery weight 430g per 50 Wh (Alkaline); 380g per 165 Wh (Lithium); 300g
per 76 Wh (Li-ion)

Environmental
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

Connectors
Bulkhead (Impulse) MCBH-8-FS Brass

Cable PMCIL-8-MP on 5 m (default) polyurethane cable

Materials
Standard model POM, Naval Brass, Titanium Gr. 5, Epoxy

Dimensions (see drawings for details)

Maximum housing diameter 75 mm

Maximum length S2VP: 589 mm; S2SP: 634 mm

Weight
Weight in air (without batteries) S2VP: 2500g; S2SP: 2710g

Weight in water (without batteries) S2VP: -120g; S2SP: -50g

Arrangements
S2VP Shallow water, 2MHz, Vertical orientation, Profiler

S2SP Shallow water, 2MHz, Side-looking orientation, Profiler