OCEANOGRAPHY

10/08/2024

Aquadopp - 500 m, Generation 2

Highly versatile single-point current meter with the option to perform PUV
wave measurements

The Aquadopp 500 m is a compact, accurate and affordable single-point current meter for applications where acurrent profile is not needed. Designed for use in several deployment scenarios, from mooring lines to bottommounted structures, it also has the option to perform PUV-based directional wave measurements, making it acost-effective and simple solution.
The Aquadopp now offers 6% broadband measurements and “hibernation mode” between measurements,
enabling precise data collection with lower power consumption. Combined with mechanical improvementsallowing for more internal battery storage, the modern Aquadopp design extends potential deployment duration.

See the details of the Generation 2 Aquadopp updates in the release notes here.

Highlights

Applications

Single-point current meter

Shallow-water current measurements

Simple and robust operation

Attached to mooring lines

Ideal for mooring lines

Combined with riser monitoring systems

LED blinks when pinging for peace of mind

Studies of tidal currents

during deployment

Near-bed current measurements

Technical specifications
Water velocity measurements
Cell size

0.75 mMaximum number of cells

1Distance to measurement

1.0-6.0 m (user-selectable)

Velocity range±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 (consultTyp. 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)

Sensors
Temperature:
Temp. range-4 to +40 °C

Temp. accuracy/resolution

0.1 °C/0.01 °C

Temp. time response<1 minCompass:

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 3DUp or Down

Automatic detect

Pressure:

PiezoresistiveRange

30 m/100 m/500 m

Accuracy/precision0.5% FS / 0.005% of full scale

Digital inputs
No. of channels

1Digital input format

MicroCat CTD

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, withbinary or ASCII data output

SoftwareOperating system

Cross platform

Functions

Deployment planning, instrument configuration, data retrieval
and conversion. Online data display

PowerDC input9-24 VDC

Absolute maximum DC input

26 VDCMaximum peak current

4.5 A

Power consumption

Consult Nortek Deployment Software

Sleep current< 40 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 mConnectors
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

3 battery housing: S2VC: 593mm, S2VPC: XXXmm, S2SPC:634mm

1 battery housing: S2VC: 593mm, S2VPC: XXXmm, S2SPC: 634mm

Weight
Weight in air (without batteries)

S2VC: 2480 g

Weight in water (without batteries)

S2VC: -150 g

Weight in air, short housing (without1880 gbatteries)
Weight in water, short housing

300 g(without batteries)

Head configurations
S2VC

Shallow water, 2MHz, Vertical orientation, Current meter

Online cable configurations
Cable length

0-10m; 10-50m; 50-500m

Power wire gauge

20AWG; 20AWG; 18AWG

HardwareStandard; Standard; Long cable kit

Input voltage

9-24VDC; 24VDC +/-0,5; 48VDC +2/-5

Absolut maximum DC input

26 VDC; 26 VDC; 51 VDCCommunication

RS232/RS422/115200; RS232/RS422/115200; RS422/115200