Skipper DL850 - Performance and Environmental Data

Edition: 2017-09-25
Page 68 of 92
Chapter: 7. Specications
Performance
Speed range
+/- 40 knots, (under favourable installation and sea conditions up to +/- 50 knots).
Depth range for water track
> 1.5 m.
Maximum roll angle
+/- 10 degrees.
Maximum pitch angle
+/- 5 degrees.
Depth range for bottom track
2 - 150 m.
Digital resolution
0.1 knots.
Digital screen resolution
<10 m: 0.01 m.
>=10 m < 100 m: 0.1 m.
>=100 m: 1 m.
Speed and distance accuracy
0.2 knots or 2 %, whichever is greater.
Measuring accuracy
Better than 1 %
Note: The performance widely depends on the hydro acoustic properties of the water column (aeration
turbulence, depth, etc.), bottom conditions (sea-bed material, steepness of topography) and vessels
rolling and pitching. These eects can lead to occasional failure of the system or to incorrect indication
of speed and distance (unstable or too low values).
Note: The stated data for depth ranges and accuracy are not valid for unfavourable conditions. Since the
speed accuracy depends on the sound speed (aected by salinity and water temperature), it is important
to adjust (manually) this parameter for particular operation area, (see “Screen calibration, Menu 3,
mounting settings.” on page 29 for details).
Environmental
Transducer and transceiver cabinet
Operating temperature
-15 - 55°C.
Storage temperature
-20 - 70°C.
Protection, transducer
6 bar IP 68.
Protection, parts inside hull
IP 56.
Protection transceiver cabinet
IP 42.
Operator unit cabinet
Operating temperature
-15 - 55°C.
Storage temperature
-20 - 70°C.
Humidity
10 - 90 % relative, no condensation.
SKIPPER Electronics AS
Operation and Installation DL850 270 kHz