OCEANOGRAPHY

11/09/2024

Signature1000

Capteur haute performance pour les courants moyens et la turbulence, avec
mesure de la houle directionnelle

The Signature1000 ADCP is the optimal tool for turbulence measurements. With a maximum sampling frequencyof 16 Hz, it gives the scientific community an unprecedented opportunity to study a part of the turbulence
spectrum that has never been accessible before. Vertical resolution current profiles of 2 cm over a range of up to8 m further increase the Signature1000’s versatility, as does its ability to measure wave height and direction. The
center beam also functions as a biological echosounder, enabling high-resolution measurements of biomass in thewater column.

Highlights
Five beams for mean currents andturbulence
Wave height and direction
Very small size and weight

Applications
Turbulence studies
Sediment transport studies
3D profiling using a wire walker
Surf zone dynamics
Studies of tidal currents
Fine-scale mixing studies
Vessel-mounted coastal surveying
Directional wave measurements
Coastal studies
Suitable for wave buoys

Technical specifications
Water velocity measurements
Maximum profiling range1)

25 m (burst mode), 30 m (average mode)

Cell size

0.2-2 mMinimum blanking

0.1 m

Maximum number of cells

256 (burst)/200 (average)

Velocity range (along beam)

User-selectable 2.5 or 5.0 m/s

Minimum accuracy

0.3% of measured value ± 0.3 cm/s

Velocity precision

Broadband processing, consult instrument software

Velocity resolution

0.1 cm/s

Max sampling rate

16 Hz (8 Hz using 5 beams)

HR option (on 5th beam only)
Velocity range

3 cm/s - 1.4 m/s

Cell size

2-25 cm

Profiling range

10 cm - 8 m

Range velocity limitations

Product of profiling range and velocity should not exceed 3.0m2/s.

AD2CP measurement modes (US patent 8223588)
SingleBurst or average

Concurrent

Burst and average

Alternate

Single and/or concurrent

Echo intensity (along slanted beams)
Sampling

Same as velocity

Resolution/ dynamic range

0.5 dB / 70 dB

Transducer acoustic frequency

1 MHz

Number of beams

5; 4 slanted at 25°, 1 verticalBeam width

2.9°

Echo sounder option
Resolution

3 mm - 0.25 m

Number of bins

10,000Transmit pulse length

16 μs - 0.5 msTransmit pulse

Monochromatic or pulse compressed (25% BW)

Resolution / dynamic range

0.01 dB / 70 dB

Wave measurement option
AST frequency

1 MHzAST max distance

34 m

Maximum wave measurement depth

30 m

Height range-15 to +15 m

Wave measurement option
Accuracy/resolution (Hs)

< 1% of measured value / 2 cm

Accuracy/resolution (Dir)

2° / 0.1°

Period range

0.5-50 s

Cut-off period (Hs)

5 m depth; 0.6 sec, 20 m depth; 1.1 sec

Cut-off period (dir)

5 m depth; 1.5 sec, 20 m depth; 3.1 sec

Sampling rate (velocity and AST)

8 Hz

Ice measurement option
Parameters

N/ASensors
Temperature:

Thermistor in head (sampled at meas. rate)

Temp. range-4 to +40 °C

Temp. accuracy/resolution

0.1 °C/0.01 °C

Temp. time response

2 minCompass:

Solid State magnetometer (max 1 Hz samplerate)

Accuracy/resolution

2° for tilt < 30°/0.01°

Tilt:

Solid State accelerometer (max 1 Hz sample rate)

Accuracy/resolution

0.2° for tilt < 30°/0.01°

Maximum tilt

Full 3DUp or Down

Automatic detect

Pressure:

Piezoresistive (sampled at meas. rate)

Standard range

0-100 m (inquire for options)

Accuracy/precision

0.1% FS / Better than 0.002% of full scale

AHRS option
Accelerometer dynamic range±2g

Gyro dynamic range± 250°/sec

Magnetometer dynamic range± 1.3 Gauss

Pitch and roll range / resolution± 90° (pitch) ± 180° (roll) /0.01°

Pitch and roll accuracy± 2° (dynamic)*, ± 0.5° (static, ±30°)

Heading range / resolution

360°, all axis /0.01°

Heading accuracy± 3° (dynamic)4), ± 2° (static, tilt < 20°)

Sampling rate

Same as measurement rate (up to 16 Hz)

Dynamic specifications depends on the type of motion.

Data recording
Capacity

16 GB, 64 GB or 128 GB (inquire for larger capacity)

Data record

Consult instrument software

Mode

Stop when fullReal-time clockAccuracy± 1 min/year

Clock retention in absence of external

1 year. Rechargeable backup battery

power

Data communications
Ethernet

10/100 Mbits Auto MDI-X, TCP/IP, UDP/IP, HTTP protocols,
Fixed IP / DHCP client /Auto IP address assignment, UPnP andNortek proprietary instrument, discovery over Ethernet

SerialConfigurable RS-232/RS-422 300-1250000 bpsRecorder download baud rate

20 Mbit/s (Ethernet only) - 1 GB in 6 minutes

Controller interface

ASCII command interface over Telnet and serialConnectors
Depending on configuration

MCBH6F (Ethernet), MCBH8F (serial), MCBH2F-G2 (pwr),
optional Souriau M-series metal connector for online use(10M)

SoftwareFunctions

Deployment planning, instrument configuration, data retrievaland conversion (for Windows®)PowerDC input

12-48 V DC

Maximum peak current

1.5 A

Max. average consumption at 1 Hz

8 W at 1 Hz, Ethernet adds 0.75 W

Typical average consumption

15 mW

Sleep consumption

100 μA, power depending on supply voltage

Transmit power per beam

0.3-30 W, adjustable levels

Ping sequence

ParallelBatteries
Internal

90 Wh alkaline

Duration

Depending on configuration, consult software

Environmental
Operating temperature-4 to +40 °C

Storage temperature-20 to +60 °C

Vibration

IEC60068-2-64

EMC approval

IEC/EN 61000-6-2, 61000-6-3

Depth rating

300 m (for 4000 m version, contact Nortek for specifications)

Materials
Standard model

POM with titanium fasteners

Dimensions
Maximum diameter

142 mmMaximum length with room for internal212 mmbatteriesDimensions
Maximum length without room for

152 mminternal batteries

WeightIn air, no battery

2.21 kg (1.9 kg short)

In water, no battery-0.09 kg (0.3 kg short)

Battery

0.71 kg