Nortek Signature Series User Manual

Data formats 63
© 2017 Nortek AS
Field
Size
Format
Resolution/
Unit
Description
Roll
16 bits
Signed
0.01 Deg
#Beams &
Coordinate
system &
#Cells
16 bits
Definition:
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)
Cell Size
16 bits
Unsigned
1 mm
Blanking
16 bits
Unsigned
1 mm
Nominal
Correlation
8 bits
Unsigned
%
The nominal correlation for the configured
combination of cell size and velocity range.
Unused value
8 bits
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
32 bits
Unsigned
10^(Velocity
Scaling) m/s
Ambiguity velocity, corrected for sound velocity,
scaled according to Velocity Scaling
Data Set
Description
16 bits
Bits
Description
0-3
Physical beam used for 1st data
set.
4-7
Physical beam used for 2nd data
set.
8-11
Physical beam used for 3th data
set.
12-16
Physical beam used for 4th data

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