NorthStar Echo Sounder 491 Operation Manual page 70

Table 3: Northstar-recommended transducers
Manufacturer
Airmar
Airmar
Airmar
Maintaining a
transducer
Page 66
transducer. The models below can be purchased from
Northstar.
Model
B260
B744V
(w/3-wire speed)
P66
Airmar Technology Corporation may be reached at 35
Meadowbrook Drive, Milford, New Hampshire 03055-4613;
phone 603/673-9570; fax 603/673-4624.
Detailed information on maintaining and troubleshooting a trans-
ducer is outside the scope of this manual. Refer to the transducer
manufacturer's documentation. Do not return a transducer to North-
star. If you need to return a transducer for service, contact the man-
ufacturer directly for instructions.
Do not expose a transducer to gasoline or clean it with strong
solvents. These can penetrate and degrade the housing. If a
transducer will be exposed to saltwater, coat it with
anti-fouling paint to prevent sea growth. To clean a transducer
of sand, debris, or sea growth, use a stiff brush or putty knife.
Use sanding sparingly, as repeated sanding may affect a
transducer's performance at high speeds. If necessary, wet
sand with finer grade wet or dry paper. Check the transducer
periodically.
Power
1 kW
600 W
600 W
NOTE:
491 Echo Sounder Operations Manual
Northstar P/N
TD1004
TD1005
TD1006