Nortek Signature 100k Hz frontview
Nortek Signature 100k Hz sideview
MG 2288
ABS2 lowres
Nortek Signature 100k Hz frontview
Nortek Signature 100k Hz sideview
MG 2288
ABS2 lowres

Oceanography

Signature 100

1500 m | 6000 m

Long-range current profiler designed for combined current profile and biomass measurements

  • 400 - 470 m current profiling range
  • Optional center beam with 70–120 kHz echosounder

Overview

The Signature 100 combines a four-beam current profiler operating at 100 kHz with an optional scientific echosounder.

The current profiler has effective range of 400 - 470 m, working alongside a scientific echosounder 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.

Download our guide to Signature ADCPs here.

  • Currents
  • Echosounder

Highlights

  • Up to 400 - 470 m current profiling range
  • Optional center beam with 70–120 kHz echosounder

Usage

  • Detection of krill or plankton in the water column with scientific echosounder
  • Upwelling and downwelling studies
  • Suitable for buoy mounting with internal AHRS

Setup

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 Signature ADCP.

Deployment

The Signature 100 offers dependable buoy and bottom frame solutions from Nortek and leading industry partners tailored for the instrument. Optional AHRS improves motion correction during buoy-mounted long-range current profiles.

Data

The combined scientific echosounder option enables users to collect concurrent velocity profiles and high-resolution echosounder data from a single instrument. Ocean Contour is a powerful postprocessing software created specifically for the AD2CP platform, and for expert-level biomass processing our industry partners at Echoview can be consulted.

Download PDF

Water velocity measurements

Maximum profiling range*

400-470 m

Cell size

3–15 m

Minimum blanking

2 m

Maximum number of cells

200

Velocity range (along beam)

User-selectable 1.0 to 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 and cell size.

AD2CP Measurement modes*

Single

Average

Concurrent

Average and echosounder

Alternate

N/A

* US Patent 8223588

Echo Intensity (along slanted beams)

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)

Echosounder option

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

Wave measurement option

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

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 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 orientation sensing. Recommended instrument orientation and allowable tilt depend on the measurement application.

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

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)*, ± 2° (static, tilt < 20°)

Sampling rate

Same as measurement rate (up to 1 Hz)

Power

Using AHRS draws more power than the regular compass and tilt sensor. Please refer to the Signature Deployment software.

* 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-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

Connectors

Depending on configuration

MCBH6F (Ethernet), MCBH8F (serial), MCBH2F-G2 (pwr), optional Souriau M-series metal connector for online use (14M)

Software

Functions

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

Power

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

Batteries

Internal

One or two 540 Wh alkaline or 1800 Wh lithium

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

1500 m (for 6000 m version, contact Nortek for specifications)

Materials

Standard model

POM with titanium fasteners. Titanium/POM transducer cups

Dimensions*

Maximum diameter

455 mm

Maximum length with room for internal batteries

765 mm (2 batteries)

*See drawings for detailed dimensions

Weight

In air, no battery

37.5 kg

In water, no battery

13 kg

Battery

10.2 kg (2x540 Wh), 7.6 kg (2x1800 Wh)

Deep water version specifications

Depth rating

6000 m

Maximum diameter*

456 mm

Maximum length (without room for internal batteries)

405 mm

Standard model

Titanium/POM housing with titanium fasteners. Titanium/POM endbell. Titanium/POM transducer cups. 

Weight in air, without echosounder

35.9 kg

Weight in water, without echosounder

20.8 kg

Weight in air, with echosounder

37.2 kg

Weight in water, with echosounder

21.8 kg

*See drawings for detailed dimensions

Compare similar products

Nortek Signature 100K Hz Frontview Dypetset
Nortek Signature250 250K Hz Topview
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Nortek Signature500 500K Hz Sideview 1
Products
Signature 100
Signature 250
Signature 55
Signature 500
Frequency
100 kHz
250 kHz
55 kHz
500 kHz
Features
Currents, echosounder
Currents, waves, ice
Currents
Currents, waves, turbulence, echosounder, ice
Profiling range
400-470 m
200 m
1000 m
60 m (burst), 70 m (average)
Depth rating options
1500 m, 6000 m
300 m
1500 m
300 m, 6000 m
Maximum order of cells
200
200
200
256 burst, 200 average
Maximum sampling rate
1 Hz
3 Hz
1 Hz
8 Hz
Wave measurment capabilities
N/a
Up to 150 m depth, AST
N/a
Up to 60 m depth, AST
Additional options
Scientific echosounder
Waves
N/a
Burst, waves, ice, echosounder, onboard wave processing
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Support resources

Signature

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