Nortek New Aquadopp profiler 400k Hz Z cell sideview

Oceanography

Aquadopp Profiler 400 kHz

500 m, Z-Cell, Generation 2

Up to 90 m current profiling range and no blanking; ideal for mean and boundary current measurements

Up to 90 m current profiling range
Capable of measuring surface or bottom currents
Ideal for mean current measurements

Download guide to Aquadopp ADCPs Go to Technical Specifications

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) 400 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.

Download our guide to Aquadopp ADCPs here.

Currents

Highlights

Up to 90 m current profiling range
Capable of measuring surface or bottom currents
Ideal for mean current measurements

Usage

Mounted on bottom frames, with ability to also measure near-bed currents
Mounted on surface buoys, with the ability to also measure surface currents
Mean flow measurements with high focus on ease of use and simplicity
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.

Water velocity measurements

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)	User-selectable 1.0 to 5.0 m/s
Accuracy	±1% of measured value ±0.5 cm/s
Horizontal velocity precision**	Typ. 1cm/s
Maximum sampling rate (output)	1 Hz
Wave measurement	PUV (optional)
	* Depending on scattering conditions
	** Consult instrument SW

Z-Cell Properties

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

Echo intensity

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)

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°
Maximum tilt	Full 3D orientation sensing. Recommended instrument orientation and allowable tilt depend on the measurement application.
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	Cross platform
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	< 40 uA
Transmit power	Adjustable

Batteries

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)

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 5m (default) polyurethane cable

Materials

	POM, Naval Brass, Titanium Gr.5, Epoxy

Dimensions (see drawings for details)

Maximum housing diameter	75 mm
Maximum length	701 mm

Weight

Weight in air (without batteries)	3900 g
Weight in water (without batteries)	60 g
Weight in air, short housing (without batteries)	3300 g
Weight in water, short housing (without batteries)	510 g

Head configurations

S4VZ	Shallow water, 400 kHz, Vertical orientation, Z-Cell Profiler

Online cable information

Cable length	A) 0-10m, B) 10-50m, C) 50-500m
Power wire gauge	A) 18AWG, B) 18AWG, C) 18AWG
Hardware	A) Standard, B) Standard, C) Long cable kit *
Input voltage	A) 9-24VDC, B) 24VDC +/-0,5, C) 48VDC +2/-5
Absolut maximum DC input	A) 26 VDC, B) 26 VDC, C) 51 VDC
Communication	A) RS232/RS422/115200, B) RS232/RS422/115200, C) RS422/115200
	*Start-up voltage: greater than or equal to 26V. Recommended operating range: 43-50 V.