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
- Bottom track
Highlights
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A coherent system that is quick and convenient to operate
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Fifth echosounder beam for sediment measurements down to the bottom (1000/500)
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Ethernet ADCP and GNSS hardware, offering tight network timing
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Simultaneous current and depth information in one place (1000/500)
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Outstanding bottom-track performance, even under challenging conditions
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Straightforward data-acquisition and processing software
Usage
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Coastal surveys, up to 200 m depth
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Port and harbor mapping
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Studies of tidal currents
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Sediment transport studies
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Large-scale mixing studies
Setup
The in-water serviceable sea valve solution is a convenient mounting choice for offshore operational vessels. The transducer head can also be mounted with a bracket for permanent pole or hull mount structures. The system connects to a junction box for power and communication.
Deployment
A type-approved sea valve solution makes the ADCP in-water serviceable. Data is streamed directly from the hull of the vessel into the control room in real time during operation.
Data
Designated software provides real-time current speed and direction in a 3D profile plot below the vessel, a history plot for predicting future windows of opportunity, as well as other views of information from the system for operators to make decisions at a glance. Data can also be easily fed into a third-party software.
| 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. |
| 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 |
| 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 |
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)
