Nortek Signature1000 1 Mhz Sideview
Signature1000 1 Mhz 1
Signature1000 1 Mhz 4
Signature1000 1 Mhz 2
Nortek Signature1000 1 Mhz Sideview
Signature1000 1 Mhz 1
Signature1000 1 Mhz 4
Signature1000 1 Mhz 2

Ocean currents

Signature1000

High-performance mean currents and turbulence, wave height and direction

Overview

The Signature1000 ADCP is the optimal tool for turbulence measurements. With a maximum sampling frequency of 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 to 8 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 the water column.

  • Currents
  • Turbulence
  • Waves
  • Echosounder

Highlights

  • Five beams for mean currents and turbulence
  • Wave height and direction
  • Very small size and weight

Usage

  • 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

Setup

The Signature Deployment software guides users through setup to ensure even the most detailed concurrent measurement schemes are handled correctly and makes certain all users can fully utilize the capabilities of the Signature1000 ADCP, including current, wave and turbulence measurements.

Deployment

Teams of all sizes can successfully deploy the Signature1000 thanks to its small size (21.2cm height), as well as dependable buoy and bottom frame solutions from Nortek and leading industry partners tailored for the instrument. Optional AHRS updated at the same rate as sampling improves motion correction during vehicle and buoy-mounted measurements.

Data

Ethernet and optional serial data communications makes retrieval of data quick and easy, including post-recovery download or real-time applications. Ocean Contour is a powerful postprocessing software created specifically for the AD2CP platform.

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Maximum profiling range1)

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

Cell size

0.2-2 m

Minimum 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)

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 3.0 m2/s.

Single

Burst or average

Concurrent

Burst and average

Alternate

Single and/or concurrent

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 vertical

Beam width

2.9°

Resolution

3 mm - 0.25 m

Number of bins

10,000

Transmit pulse length

16 μs - 0.5 ms

Transmit pulse

Monochromatic or pulse compressed (25% BW)

Resolution / dynamic range

0.01 dB / 70 dB

AST frequency

1 MHz

AST max distance

34 m

Maximum wave measurement depth

30 m

Height range

-15 to +15 m

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

Parameters

N/A

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 min

Compass:

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 3D

Up 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

Accelerometer dynamic range

± 2 g

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.

Capacity

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

Data record

Consult instrument software

Mode

Stop when full

Accuracy

± 1 min/year

Clock retention in absence of external power

1 year. Rechargeable backup battery

Ethernet

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

Serial

Configurable RS-232/RS-422 300-1250000 bps

Recorder download baud rate

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

Controller interface

ASCII command interface over Telnet and serial

Depending on configuration

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

Functions

Deployment planning, instrument configuration, data retrieval and conversion (for Windows®)

DC 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

Parallel

Internal

90 Wh alkaline

Duration

Depending on configuration, consult software

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)

Standard model

POM with titanium fasteners

Maximum diameter

142 mm

Maximum length with room for internal batteries

212 mm

Maximum length without room for internal batteries

152 mm

In 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

Signature 1000 General Arrangement - NGA061-002 Rev.-

Declaration of conformity
Statement of compliance
Vibration test - Signature

Signature1000

5-beam head

Standard, with room for internal battery

Short, no room for battery

16 GB SD card data logger

64 GB SD card data logger

Pressure sensor, 0-10 m, 0,1%

Pressure sensor, 0-20 m, 0,1%

Pressure sensor, 0-30 m, 0,1%

Pressure sensor, 0-50 m, 0,1%

Pressure sensor, 0-100 m, 0,1%

Pressure sensor, 0-200m, 0,1%

Pressure sensor, 0-500m, 0,1%

Pressure sensor, 0-500m, 0,1% (Note: instrument depth rating is 300m)

10m Ethernet cable with MCIL6MP, Power/RJ45 at dry end

10-100m Ethernet cable (specify length in comments field) with MCIL6MP-PWR/RJ45

10m Serial RS232 cable, MCIL8MP-DB12

10m Serial RS232 cable, MCIL8MP-DB9 w/RS485 trigger

Serial RS422 cable >10m (specify length in comments field), MCIL8MP-DB9

Online cable, Souriau 10M open ended, (specify length in comments field)

Online cable, Souriau 10M PWR/RJ45, max 100m, (specify length in comments field)

Compass and tilt sensor

AHRS

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