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Product Name:Signature250
Product Description:The Signature250 is an ideal, cost-efficient instrument for users looking for long range, but without the need for the full 1000 meter range of its big brother – the Signature55. The aptly named Signature250 has a frequency of 250 kHz with a profiling range of 200 meters. It is capable of measuring waves and ice from 150 meters depth. This 250 kHz frequency, true broadband instrument brings you a host of features and benefits carefully developed around the needs of the scientists and engineers working both within academia and in the offshore industry.
Year of last update:2015
Length [m]:
Width [m]:0.446
Height [m]:0.523
Weight in air [kg]:18.5
Weight in water [kg]:1.5
Min. operating power [V]:15
Max. operating power [V]:48
Max. operating depth [m]:300
Max. battery lifetime [days]:1825
True Bottom Tracking Capability:
Max. speed of boat [km] :
Max. range to bottom [m]:
Doppler Current Profiler 
Center working frequency [kHz]:250
Max. typical profiling range [m]:200
Number of beams:5
Nadir angle [deg]:20
Max. Number of cells per beam:200
Min. blanking distance [m]:0.5
Lost data at far boundary [%]:
Max. ping rate [Hz]:1
Min. vertical resolution [m]:
Min. cell size [m]:1
Max. cell size [m]:8
Cell overlap [%]:
Max. velocity [m/s]:5
Speed dependent uncertainty: horizontal [%]:1
Speed independent uncertainty: horizontal [cm/s]:0.5
Speed dependent uncertainty: vertical [%]:
Speed independent uncertainty: vertical [cm/s]:
Surface reference capability:
Surface current measurement:
Compensation for sound speed:Y
Single ping rejection of outliers :
Uncertainty of single ping horizontal velocity for default cell size [cm/sec]:
Uncertainty of single ping vertical velocity for default cell size [cm/sec]:
Standard Sensors 
Temperature: min [°C]:-4
Temperature: max. [°C]:40
Temperature: uncertainty [°C]:0.1
Tilt: max. [deg]:360
Tilt: uncertainty [deg]:2
Compass type :Solid State
Deployment method 
Moving vessel:
Bottom mount:Y
Inline string mooring:Y
Data Buoy:Y
Marine structures:Y
Auxiliary Sensors 
Acoustic modem:
Relocation of transponder:
Wave direction:Y
Speed of sound:Y
Other specifications 
Real-time interfacing:
Min. external power [Voltage]:15
Max. external power [Voltage]:48
Max. cable length [m]:
Baudrate [kbit/s]:
External battery container:
Data acquisition software and processing software:
Typical applications:Bottom mount, fixed structure

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