Nortek Signature Series User Manual

Integrator's Guide54
© 2017 Nortek AS
Field
Size
Format
Resolution/
Unit
Description
Altimeter
status
16 bits
Bit 0
Pitch or
roll > 5
deg
Bit 1
Pitch or
roll > 10
deg
AST distance
32 bits
Float
Meters
These fields exists if the AST
data included bit if the config
byte is set
AST quality
16 bits
Unsigned
AST_offset_10
0us
16 bits
Signed
100 us
Offset in step of
100 us from AST
measurement to
velocity
measurement
AST pressure
32 bits
Float
dbar
Pressure value
measured during
the AST/altimeter
ping
Altimeter
spare
8*8 bits
Spare Values
Altimeter Raw
Data –
Number of
Samples
32 bits
Unsigned
Altimeter Raw
Data – Number of
Samples
These fields exist if the
Altimeter Raw Data is set.
Altimeter Raw
Data –
Sample
distance
16 bits
Unsigned
0.1 mm
Distance between
samples
Altimeter Raw
Data –
Samples
16 bits
Signed
fract
Altimeter Raw
Data – Samples
Echo Sounder
data
NC*16
bit
Unsigned
0.01 dB/
count
Echo Sounder
Amplitude Data
These fields exist if the Echo
Sounder data included bit of
the Config byte is set.
AHRS
Rotation
Matrix – M11
32 bits
Float
AHRS Rotation
Matrix [3x3]
These fields exist if the AHRS
data included bit of the Config
byte is set.
AHRS
Rotation
Matrix – M12
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS
Rotation
Matrix – M13
32 bits
Float
AHRS Rotation
Matrix [3x3]
AHRS
32 bits
Float
AHRS Rotation

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