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APPENDIX > PHYSICAL SPECIFICATIONS, CLEANING AND STORAGE
36 Fishfinder 250/250C Owner’s Manual
APPENDIX
Physical Specifications
Size: 6.1" W x 4.9" H x 2.9" D (15.5 cm x 12.5 cm x 7.4 cm)
Weight: 1.1 lbs. (0.5 kg)
Display: (Fishfinder 250) 4.5" diagonal (11.4 cm), 3.2” W x 32” H (8.1
cm x 8.1 cm) high-contrast 10-level grayscale FSTN display with
adjustable brightness (320 x 320 pixels)
(Fishfinder 250C) 4.5" diagonal (11.4 cm), 3.2” W x 3.2” H
(8.1 cm x 8.1 cm) high-contrast, 16-color CSTN display with
adjustable brightness (320 x 320 pixels)
Case: Fully gasketed, high-impact plastic alloy, waterproof to IEC
60529 IPX7 standards
Temp. Range: 5°F to 130°F (-15°C to 55°C)
Power
Source: 10-35 Volts DC
Usage: 17 watts max. at 10 volts DC; 15 watts at 13.8 volts DC
nominal
Fuse: 2-Amp AGC/3AG
Sonar
Power: Dual frequency: 500 watts (RMS); 4000 watts (peak to peak)
Single frequency: 400 watts (RMS); 3200 watts (peak to peak)
Frequency: 50/200 kHz
Depth: 1500-foot max depth (Depth capacity is dependent on water
salinity, bottom type and other water conditions.)
Cleaning and Storage
The Fishfinder 250/250C is constructed of high quality materials
and does not require user maintenance other than cleaning. Clean the
unit using a cloth dampened with a mild detergent solution and then
wipe dry. Avoid chemical cleaners and solvents that may damage
plastic components.
Do not store the Fishfinder 250/250C where prolonged exposure to
temperature extremes may occur (such as in the trunk of a car) as
permanent damage may result. Unit settings will be retained in the
unit’s memory without the need for external power.
WARNING: The Fishfinder 250/250C lens is coated with a
special anti-reflective coating that is very sensitive to skin oils,
waxes, and abrasive cleaners. CLEANERS CONTAINING
AMMONIA WILL HARM THE ANTI-REFLECTIVE COATING.
It is very important to clean the lens using a lint-free, clean cloth
and an eyeglass lens cleaner that is specified as safe for anti-
reflective coatings.
36 Fishfinder 250/250C Owner’s Manual