Combining current and biomass measurements for unprecedented insight into ocean resources


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Profileur de courant longue portée conçu pour combiner mesure du profil de courant et mesure de biomasse
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The Signature100 combines a four-beam current profiler operating at 100 kHz with an optional scientific echosounder.
Both the current profiler and the biomass measurements have an effective range of 300-400 m providing unprecedented insight into the dynamics of zooplankton, krill or even schools of fish. Likewise, acoustic tracer material can give new insight into small-scale physical processes.
Maximum profiling range | 300-400 m* |
Cell size | 3–15 m |
Minimum blanking | TBA |
Maximum number of cells | 200 |
Velocity range (along beam) | User-selectable 2.5 or 5.0 m/s |
Minimum accuracy | 1% of measured value ± 0.5 cm/s |
Velocity precision | Broadband processing, consult instrument software |
Velocity resolution | 0.1 cm/s |
Max sampling rate | 1 Hz (1/2 Hz at max output power) |
*Maximum range depends on acoustic scattering conditions. |
Velocity range | N/A |
Cell size | N/A |
Profiling range | N/A |
Range velocity limitations | N/A |
Single | Average |
Concurrent | Average and echosounder |
Alternate | N/A |
* US Patent 8223588 |
Sampling | Same as velocity |
Resolution/dynamic range | 0.5 dB/70 dB |
Transducer acoustic frequency | 100 kHz |
Number of beams | 4 slanted at 20°, optional vertical beam for echosounder |
Beam width | 6.1° (slanted) |
Transducer acoustic frequency | 70–120 kHz |
Transducer beam width | 15° @ 70 kHz, 8.7° @ 120 kHz |
Resolution | 0.375–4 m |
Number of bins | 1800 |
Transmit pulse length | 0.5–6 ms |
Transmit pulse | Monochromatic 70 kHz, 90 kHz and 120 kHz or frequency chirp (90 kHz, 50% BW) |
Transmit power | 1.2–120 W, adjustable |
Chirp signal processing | Pulse compression or binned frequency response |
Raw complex data storage | Configurable rate |
Resolution/dynamic range | 0.01 dB / 130 dB |
Linearity | TBA |
AST frequency | N/A |
AST max distance | N/A |
Maximum wave measurement depth | N/A |
Height range | N/A |
Accuracy/resolution (Hs) | N/A |
Accuracy/resolution (Dir) | N/A |
Period range | N/A |
Cut-off period (Hs) | N/A |
Cut-off period (dir) | N/A |
Sampling rate (velocity and AST) | N/A |
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 sample rate) |
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 | 0–1500 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)2), ± 2° (static, tilt < 20°) |
Sampling rate | Same as measurement rate (up to 1 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-XTCP/IP, UDP, HTTP protocolsFixed IP/DHCP client/AutoIP, UPnP |
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 (14M) |
Functions | Deployment planning, instrument configuration, data retrieval and conversion (for Windows®) |
DC input | 15–48 V DC |
Maximum peak current | 1.5 A |
Max. average consumption at 1 Hz | 15 W |
Typical average consumption* | 2 W |
Sleep consumption | 100 μA, power depending on supply voltage |
Transmit power per beam | 4–200 W, adjustable levels |
Ping sequence | Multiplexing or parallel |
* 10 min. avg. profile,1 cm/sec hor. prec., max cell size, max power, long range mode. Consult SW for other configurations |
Internal | One or two 540 Wh alkaline or 1800 Wh lithium |
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 | 1500 m (for 6000 m version, contact Nortek for specifications) |
Standard model | POM with titanium fasteners. Titanium/POM transducer cups |
Maximum diameter | 460 mm |
Maximum length with room for internal batteries | 765 mm (2 batteries) |
Maximum length without room for internal batteries | N/A |
In air, no battery | 37.5 kg |
In water, no battery | 13 kg |
Battery | 10.0 kg (2x540 Wh), 5.8 kg (2x1800 Wh) |
Signature100
4-beam head
5-beam head (adds 95 kHz center transducer for echo sounder)
Long (for two internal batteries)
Medium (for one internal battery)
Short (no internal battery)
16 GB SD card data logger
64 GB SD card data logger
128 GB SD card data logger
Pressure sensor, 0-1500 m, accuracy 0,1% of FS
Pressure sensor, 0-100 m, accuracy 0,1% of FS
Pressure sensor, 0-1000 m, accuracy 0,1% of FS
10m Ethernet cable with MCIL6MP, Power/RJ45
10-100m Ethernet cable (specify length in comments field) with MCIL6M-PWR/RJ45
10m Serial RS232 cable, MCIL8M-DB9
10m Serial RS232 cable, MCIL8M-DB9 w/RS485 trigger
Serial RS422 cable >10m (specify length in comments field), MCIL8M-DB9
Online cable, Souriau 14M open ended, (specify length in comments field)
Online cable, Souriau 14M PWR/RJ45, max 100m, (specify length in comments field)
Online cable for RS-422 interface box, Souriau 14M (specify length in comments field)
AHRS
Compass and tilt