AOS

A global solution for collecting environmental data

AOS Overview

Broad sensor support

Easy deployment anywhere

Real time data monitoring

Tailored web application

The Nortek AOS offers online access to Nortek instruments from virtually any location worldwide. Battery power and satellite communication ensures do-it-yourself and cost effective, real time data transfer - from anywhere on the planet.

Together with rock-solid hardware products, you get a tailored customizable web application allowing you to monitor the collected data remotely in real-time. From the web site you can also setup our alarm service to notify you of critical conditions via SMS and e-mails.

Products

AOS Tube
product

The AOS unit controls the sensors and transfers the collected data via satellite.

Std. temperature range -25 – 60 °C
Voltage input 9 - 15V
Battery Externally powered
Sleep mode 1.3mA@12V
Data transmit interval ≥ 5min
Data products GPS position, battery and tempearture
AOS Box
product

The AOS unit controls the sensors and transfers the collected data via satellite.

Std. temperature range -25 – 60 °C
Voltage input 9 - 15V
Battery 300 Wh
Sleep mode 1.3mA@12V
Data transmit interval ≥ 5min
Data products GPS position, battery and tempearture
AOS Buoy
product

The AOS buoy is a robust light weight buoy specifically made for the AOS product.

Diameter 400 mm
Length 2500 mm
Weight ~40 kg
Material Polyethylene (PE)
Buoyancy 215 kg
Max wave heights 2.0 m
Max current 1.0 m/s
Max deployment depth 150 m
Aquadopp Profiler Brochure
product

The Aquadopp Profiler measures water column current profiles using acoustic Doppler technology.

Acoustic frequency 0.4MHz 0.6MHz 1.0MHz 2.0MHz
Maximum profiling range 60 - 90m 30 - 40m 12 - 20m 4 - 10m
Cell size 2 - 8m 1 - 4m 0.3 - 4m 0.1 - 2m
Accuracy 1% of measured value ±0.5cm/s
Data products Speed, Direction, Sensor data
Cell zero No Optional Optional No
Cell zero acoustic frequency 2.0MHz
AWAC with Prolog Brochure
product

The AWAC measures a wide range of wave parameters as well as full current profiles at a large number of discrete levels.

Acoustic frequency 400 kHz 600 kHz 1 MHz
Maximum profiling range 100m 50m 30m
Cell size 1.00 - 8.0m 0.50 - 8.0m 0.25 - 4.0m
Number of cells 1 - 40
Accuracy 1% of measured value ±0.5cm/s
Data products Waves (Direction, height & period)
Current profiling (Speed & Direction)
AWAC 2D Brochure
product

The AWAC 2D measures horizontal current profiles using acoustic Doppler technology.

Acoustic frequency 400 kHz
Maximum profiling range 100 - 130m
Cell size 1 - 8m
Number of cells 1 - 40
Accuracy 1% of measured value ±0.5cm/s
Data products Horizontal current profiling (Speed & Direction)
Other sensors Temperature, Compass, Tilt, Pressure
Weather station Brochure
product

The instrument measures a wide range of meteorological data.

Brand Vaisala WXT530
Wind 3 ultra sonic sensors
Sampling rate 4 MHz
Precipitation Piezoelectric sensor
PTU module RC oscillator and two reference capacitors
Data products Wind, atmospheric pressure, temperature, precipitation & humidity
Turbidity sensor Brochure
product

Optical turbidity sensor.

Brand Ponsel
Range 0 – 4000 NTU
Accuracy < 5%
Max depth 50m
Sensor method Optical IR nephelometry
Data products Turbidity and temperature
Oxygen sensor
product

Robust optical oxygen sensor.

Brand INSITE-IG
Range 0 – 25ppm (0 – 200 %)
Accuracy 1% of reading or 0.02ppm
Drift < 1% per year
Max depth 50m
Sensor method Optical
Data products Oxygen and temperature
Conductivity sensor Brochure
product

Inductive conductivity sensor.

Brand Ponsel
Range 0 – 70 ppt
Accuracy < 5% of total range
Drift < 1% per year
Max depth 50m
Sensor method Inductive
Data products Conductivity and temperature

Nortek

Nortek AS is a scientific instrumentation company that develops and distributes water velocity instruments. Our products are based on the acoustic Doppler principle and span from single point turbulence sensors to long range current profilers. Our customers are scientists, research institutions, and consulting engineers, all with demanding applications requiring state-of-the-art instrumentation that is reliable and easy to use.

Our main office is located just outside Oslo, Norway and this is where we do development, product assembly and testing. Eight international subsidiaries provide direct contact with our worldwide customer base. We currently ship close to 1000 instruments per year and our instruments are in use in more than 75 countries around the world.