Nortek Signature Series User Manual

Data formats 51
© 2017 Nortek AS
Field
Size
Format
Resolution/
Unit
Description
Heading
16 bits
Unsigned
0.01 Deg
Pitch
16 bits
Signed
0.01 Deg
Roll
16 bits
Signed
0.01 Deg
#Beams &
Coordinate
system &
#Cells
16 bits
Definition: (Standard)
Bit 9 - 0
Number of Cells (NC)
Bit 11 - 10
Coordinate system,
b00: ENU, b01: XYZ, b10:
BEAM, b11: -
Bit 15 – 12
Number of Beams (NB)
Definition: (Echo Sounder)
Bit 15-0
Number of echo sounder cells
Cell Size
16 bits
Unsigned
1 mm
Blanking
16 bits
Unsigned
1 cm
Nominal
Correlation
8 bits
Unsigned
%
The nominal correlation for the configured
combination of cell size and velocity range
Temperature
pressure
sensor
8 bits
Unsigned
0.2 deg C
Temperature of pressure sensor: T=(Val/5)-4.0
Battery
Voltage
16 bits
Unsigned
0.1 Volt
Magnetometer
Raw( X-axis )
16 bits
Signed
Magnetometer Raw, X axis value in last
measurement interval.
Magnetometer
Raw( Y-axis )
16 bits
Signed
Magnetometer Raw, Y axis value in last
measurement interval.
Magnetometer
Raw( Z-axis )
16 bits
Signed
Magnetometer Raw, Z axis value in last
measurement interval.
Accelerometer
Raw ( X-axis )
16 bits
Signed
Accelerometer Raw X axis value in last
measurement interval. (16384 = 1.0)
Accelerometer
Raw ( Y-axis )
16 bits
Signed
Accelerometer Raw Y axis value in last
measurement interval. (16384 = 1.0)
Accelerometer
Raw ( Z-axis )
16 bits
Signed
Accelerometer Raw Z axis value in last
measurement interval. (16384 = 1.0)
Ambiguity
Velocity /
Echo sounder
Frequency
16 bits
Unsigned
Standard Definition
10^(Velocity
scaling) m/s
Ambiguity velocity, corrected for sound velocity,
scaled according to Velocity scaling
Echo Sounder Definition

Nortek Signature Series Specifications

General

Type	Acoustic Doppler Current Profiler (ADCP)
Operating Temperature	-5°C to +45°C
Storage Temperature	-20°C to +60°C
Temperature Sensor	Integrated
Pressure Sensor	Integrated
Compass and Tilt Sensor	Integrated
Data Storage	Internal memory
Communication Interfaces	Ethernet, RS-232
Depth Rating	Up to 6000 meters (depending on model)
Data Output	ASCII, binary
Beam Angle	Varies by model
Velocity Accuracy	±0.5% of measured velocity ±1 mm/s