Nortek Signature VM 1000k Hz frame frontview squared
Nortek Signature VM processing unit
Nortek Signature250 250k Hz sideview 5 transducer
Nortek Signature VM delivery box
Signature250 VM ready to be deployed through moonpool
Nortek Signature VM 1000k Hz frame frontview squared
Nortek Signature VM processing unit
Nortek Signature250 250k Hz sideview 5 transducer
Nortek Signature VM delivery box
Signature250 VM ready to be deployed through moonpool

Vessel mounted

Signature VM Coastal - 1000|500|250 kHz

The Signature VM package delivers vessel-mounted AD2CP capabilities based on present-day technology

Overview

The Signature VM Coastal safeguards data quality, opens up new and unprecedented opportunities to the scientific community, and offers operational convenience and reduced complexity.

The Signature VM Coastal package includes the Signature1000, 500 or 250, allowing for great versatility in both the vessel-mounted and bottom-mounted configurations. By using a state-of-the-art and user-friendly vessel-mounted package, measurement errors and initial installation time can be greatly reduced.

  • Currents
  • Echosounder
  • Bottom track

Highlights

  • A coherent system that is quick and convenient to operate
  • Fifth echosounder beam for sediment measurements down to the bottom (1000/500)
  • Ethernet ADCP and GNSS hardware, offering tight network timing
  • Simultaneous current and depth information in one place (1000/500)
  • Outstanding bottom-track performance, even under challenging conditions
  • Straightforward data-acquisition and processing software

Usage

  • Coastal surveys, up to 200 m depth
  • Port and harbor mapping
  • Studies of tidal currents
  • Sediment transport studies
  • Large-scale mixing studies

Setup

Most vessels can accommodate the compact VM Coastal. A fairing bracket is included to house the Signature ADCP and reduce drag. Other components include a GNSS and a processing unit for pulling together system data.

Deployment

Configure, view, forward and store current velocity data in real time from the VM acquisition software while onboard the vessel. Gather current speed and direction information as well as biomass or sediment estimates using the optional scientific echosounder.

Data

Process and export subsets of interest using the VM review software once your survey has ended. A connection to Qrev makes it possible to calculate discharge independently.

Download PDF

Profiling range* 30 m
Cell size 0.2–2 m
Max no. cells 256
Min. blanking 0.1 m
Minimum accuracy 0.3% of the measured value ± 0.3 cm/s
Velocity resolution 0.1 cm/s
Maximum sampling rate 14 Hz
No. of beams 4 slanted at 25 degrees
*) Maximum range depends on acoustic scattering conditions and transmit power.

Profiling range* 70 m
Cell size 0.5–4 m
Max no. cells 256
Min. blanking 0.5 m
Minimum accuracy 0.3% of the measured value ± 0.3 cm/s
Velocity resolution 0.1 cm/s
Maximum sampling rate 6 Hz
No. of beams 4 slanted at 25 degrees
*) Maximum range depends on acoustic scattering conditions and transmit power.

Profiling range* 200 m
Cell size 1–8 m
Max no. cells 256
Min. blanking 0.5 m
Minimum accuracy 1% of the measured value ± 0.5 cm/s
Velocity resolution 0.1 cm/s
Maximum sampling rate 2 Hz
No. of beams 4 slanted at 20 degrees
*) Maximum range depends on acoustic scattering conditions and transmit power.

Single ping std @ 3 m/s 0.5 cm/s
Long-term accuracy ± 0.1% / ± 0.1 cm/s
Minimum altitude 0.2 m
Maximum altitude 30 m
Velocity resolution 0.01 mm/s
Maximum sampling rate 4 Hz

Single ping std @ 3 m/s 0.5 cm/s
Long-term accuracy ± 0.1% / ± 0.1 cm/s
Minimum altitude 0.3 m
Maximum altitude 70 m
Velocity resolution 0.01 mm/s
Maximum sampling rate 2 Hz

Single ping std @ 3 m/s TBA
Long-term accuracy TBA
Minimum altitude 5 m
Maximum altitude 205 m
Velocity resolution 0.01 mm/s
Maximum sampling rate 1 Hz

No. of beams 1 vertical
Maximum sampling rate 2 Hz
Max. range 30 m
Vertical resolution / accuracy 0.001 m / 1% of the measured value**
**) Assuming a constant speed of sound

No. of beams 1 vertical
Maximum sampling rate 2 Hz
Max. range 70 m
Vertical resolution / accuracy 0.001 m / 1% of the measured value**
**) Assuming a constant speed of sound

No. of beams N/A*
Maximum sampling rate N/A
Max. range N/A
Vertical resolution / accuracy N/A
*) Depth measurement via the 4 slanted beams.

Sampling Same as velocity for slanted beams
Resolution 0.5 dB
Dynamic range 70 dB slanted beams
No. of beams 4 slanted at 25 degrees
Beam width 2.9°

Sampling Same as velocity for slanted beams
Resolution 0.5 dB
Dynamic range 70 dB slanted beams
No. of beams 4 slanted at 20 degrees
Beam width 2.3°

No. of beams 1 vertical
Maximum sampling rate 2 Hz
Max. range 30 m
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

No. of beams 1 vertical
Maximum sampling rate 1 Hz
Max. range 70 m
Resolution 6 mm - 0.5 m
Number of bins 11,000
Transmit pulse length 32 μs - 1 ms
Transmit pulse Monochromatic or pulse compressed (25% BW)
Resolution / dynamic range 0.01 dB / 70 dB

No. of beams N/A
Maximum sampling rate N/A
Max. range N/A
Resolution N/A
Number of bins N/A
Transmit pulse length N/A
Transmit pulse N/A
Resolution / dynamic range N/A

Temperature sensor range /accuracy -4 °C to 40 °C / 0.1 °C
Pressure Piezoresistive
Standard range VM 1000/ VM 500: 0-100 m (inquire for options), VM 250: 0-300m (inquire for options)
Accuracy/precision 0.1% FS / better than 0.002% of full scale
Compass and tilt Solid-state magnetometer
Data recording 16 GB (inquire for options)
Data cable 20 m Ethernet cable (inquire for options)
IO Ethernet
DC Input 12–48 V DC

Operating temperature -4 °C to 40 °C
Storage temperature -20 °C to 60 °C
Vibration IEC 60068-1/IEC60068-2-64
EMC approval IEC 61000
Depth rating 300 m – Bottom track is limited to surface vessels
Connectors Straight fitted MCBH6F (Ethernet)
Housing Small instrument housing
Material POM with titanium fasteners and additional, reinforced transducer cups for VM 250

Processor/memory Intel i5/8 GB
Hard disk SSD, 500 GB
Operating system Windows® 10
Housing Half 19" 2 HE case or 19" rack-mountable 1 HE
Dimensions 265x110x340 mm or 480x45x325 mm
Input 24 V DC, 20 W typical
Total weight 5.75 or 3.80 kg
Connections Power, Signature ADCP, AN_GNSS, 2x HDMI, 2xLAN, 3x USB, 1x RS-232 (optional)

Acquisition Signature VM - binary, GNSS compass - binary
Timing < 0.6 s, IEEE1588/PTP for absolute timestamping (GNSS compass/Signature VM)
Configuration Signature VM (partly)Advanced Navigation GNSS compass
Display Vessel track in map, Bottom-track velocity, Bottom-track depth, Velocity magnitude and direction, Echo amplitude, Echo correlation, Vertical depth*, Vertical echogram; corrected relative volume backscatter (1000/500)*
Status Signature VM + AN_GNSS compass
Output Online: NMEA data formats and AD2CP format. Off-line CSV, ASCII VMT, MATLAB, MATLAB VMT, MATLAB QRev, KML
*) Signature1000 and 500

Brand and model Advanced navigation GNSS compass
Position accuracy (with dGNSS) / post-processed Horizontal: 0.6 m / 0.01 m, Vertical: 1.0 m / 0.02 m
Heading accuracy / post-processed 0.2°/ 0.09°
Supported navigation systems GPS L1, GLONASS G1, GALILEO E1, Beidou B1
Optional High Accuracy RTK variant GPS L1_L2, GLONASS G1_G2, GALILEO E1_E5b, BeiDou B1_ B2
Motion 9-axis IMU
Communication Ethernet 10/100
Timing PTP, NTP timeserver functionality
Protocol NMEA0183, AN Packet protocol, TSS1, Simrad

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)3), ± 0.5° (static, ± 30°)
Heading range / resolution 360°, all axes /0.01°
Heading accuracy ± 3° (dynamic)3), ± 2° (static, tilt < 20°)
Sampling rate Same as measurement rate

Signature1000 - General arrangement
Signature1000 and Signature500 VM Mounting bracket
Signature500 - General arrangement
Signature500 VM Mounting Bracket
Signature 250 VM General Arrangement
Signature250 VM Mounting Bracket

Declaration of Conformity - Signature1000
Declaration of Conformance - GNSS Compass
Declaration of Conformity - SignatureVM
Statement of Compliance - Signature1000
Environmental test report - Vibration test - Signature

Signature1000 VM

Signature500 VM

Signature250 VM

5-beam head (1000, 500)

4-beam head (250)

5-beam head (adds 500 kHz center transducer for wave measurements) (250)

Short, no room for battery (external battery canister for bottom mount use)

16 GB SD card data logger

64 GB SD card data logger

128 GB SD card data logger

Pressure sensor 0-100 m, 0.1% (standard) All other available Signature1000_500

Pressure sensor 0-300 m, 0.1% (standard) All other available Signature250

AD2CP: 20 m Ethernet cable with MCIL6MP, Power/RJ45 at dry end (standard)

AD2CP: 10-100 m Ethernet cable (specify length) with MCIL6MP-PWR/RJ45

GNSS: GC-POE-CABLE-20M Ethernet cable for GNSS Compass 20 m (please inquire for other length)

Vessel Mounted over the side

Vessel Hull mounted

Unmanned Surface Vehicle (USV) mounted (please inquire)

Compass and Tilt sensor

AHRS

High Accuracy Heading GNSS (RTK)

Request a quote

Cart

Total $0.00
Next

In the final step you can choose to pay by card or generate a quote PDF.