Nortek Signature Series User Manual

Data formats 55
© 2017 Nortek AS
Field
Size
Format
Resolution/
Unit
Description
Rotation
Matrix – M21
Matrix [3x3]
AHRS
Rotation
Matrix – M22
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS
Rotation
Matrix – M23
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS
Rotation
Matrix – M31
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS
Rotation
Matrix – M32
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS
Rotation
Matrix – M33
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS Dummy
4 * 32
bits
AHRS Gyro X
32 bits
Float
[dps] –
Degrees pr
Second
AHRS Gyro
AHRS Gyro Y
32 bits
Float
[dps] –
Degrees pr
Second
AHRS Gyro
AHRS Gyro Z
32 bits
Float
[dps] –
Degrees pr
Second
AHRS Gyro
Percent good
data
NC * 8
bits
Unsigned
Percent
Percent
Good
Estimat
e per
cell
These fields exist if the
Percentage Good data
included bit of the Config byte
is set
Std. Dev.
Pitch
16 bits
Signed
0.01
Degrees
These fields exist if the Std.
Dev. data included bit of the
Config byte is set
Std. Dev. Roll
16 bits
Signed
0.01
Degrees
Std. Dev.
Heading
16 bits
Signed
0.01
Degrees
Std. Dev.
Pressure
16 bits
Signed
0.001 Bar

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