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Signature1000

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

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

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Technical specification (PDF)

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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.

Highlights

Five beams for mean currents and turbulence
Wave height and direction
Ice thickness and ice drift
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
Surface ice monitoring

Technical specification

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Water velocity measurements

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)

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 3.0 m2/s.

AD2CP measurement modes (US patent 8223588)

Single	Burst 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 vertical
Beam width	2.9°

Echo sounder option

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

Wave measurement option

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

Ice measurement option

Parameters N/A

Sensors

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

AHRS option

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.

Data recording

Capacity	16 GB, 64 GB or 128 GB (inquire for larger capacity)
Data record	Consult instrument software
Mode	Stop when full

Real-time clock

Accuracy	± 1 min/year
Clock retention in absence of external power	1 year. Rechargeable backup battery

Data communications

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

Connectors

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

Software

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

Power

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

Batteries

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 mm
Maximum length with room for internal batteries	212 mm
Maximum length without room for internal batteries	152 mm

Weight

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

Technical documents
- Toggle all
- Technical drawings
  
  Signature 1000 General Arrangement - NGA061-002 Rev.-
  
  Download this
- Approvals
  
  Declaration of conformity
  
  Download this
  
  Statement of compliance
  
  Download this
  
  Vibration test - Signature
  
  Download this

Configurations
- Toggle all
- Main product
  
  01
  
  Signature1000
- Probe type / Head
  
  01
  
  5-beam head
- Housing
  
  01
  
  Standard, with room for internal battery
  
  02
  
  Short, no room for battery
- Memory
  
  01
  
  16 GB SD card data logger
  
  02
  
  64 GB SD card data logger
- Pressure sensors
  
  01
  
  Pressure sensor, 0-10 m, 0,1%
  
  02
  
  Pressure sensor, 0-20 m, 0,1%
  
  03
  
  Pressure sensor, 0-30 m, 0,1%
  
  04
  
  Pressure sensor, 0-50 m, 0,1%
  
  05
  
  Pressure sensor, 0-100 m, 0,1%
  
  06
  
  Pressure sensor, 0-200m, 0,1%
  
  07
  
  Pressure sensor, 0-500m, 0,1%
  
  08
  
  Pressure sensor, 0-500m, 0,1% (Note: instrument depth rating is 300m)
- Cables
  
  01
  
  10m Ethernet cable with MCIL6MP, Power/RJ45 at dry end
  
  02
  
  10-100m Ethernet cable (specify length in comments field) with MCIL6MP-PWR/RJ45
  
  03
  
  10m Serial RS232 cable, MCIL8MP-DB12
  
  04
  
  10m Serial RS232 cable, MCIL8MP-DB9 w/RS485 trigger
  
  05
  
  Serial RS422 cable >10m (specify length in comments field), MCIL8MP-DB9
  
  06
  
  Online cable, Souriau 10M open ended, (specify length in comments field)
  
  07
  
  Online cable, Souriau 10M PWR/RJ45, max 100m, (specify length in comments field)
- Other
  
  01
  
  Compass and tilt sensor
  
  02
  
  AHRS

Software
- Toggle all
- Nortek Discover
  
  Go to Software download
- Ocean Contour
  
  Data visualization and processing software
  
  Go to Software download
- Serial to USB driver
  
  Virtual COM port driver to allow Nortek's serial-to-USB converters to function.
  
  Go to Software download
- Signature 1000
  
  Upgrade highly recommended. New features, fixes and functionality.
  
  Go to Software download
- Signature Deployment (Installer file)
  
  Deployment software for all Signature series instruments as an installer file. You may download it now and install later if needed. Use the Help menu "Check for updates" function to get the latest firmware and software versions. Should a 32bit be required it may be downloaded here.
  
  Go to Software download
- Signature Deployment (Microsoft Store version - installer file)
  
  The installer file of Signature Deployment as available through Microsoft Store. Use the Help menu "Check for updates" function to get the latest firmware and software versions.
  
  Go to Software download
- Signature Deployment (Microsoft Store version)
  
  Deployment software for all Signature series instruments available through Microsoft Store. Use the Help menu "Check for updates" function to get the latest firmware and software versions.
  
  Go to Software download
- SignatureViewer
  
  Data viewer and post-processing software for Signature series instruments.
  
  Go to Software download