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



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 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


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


  • 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


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.


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.


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


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


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