Airmar, Maintenance – Airmar P23 User Manual
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Maintenance
Antifouling Paint
Aquatic growth can accumulate rapidly on the sensor’s surface
reducing performance within weeks. Surfaces exposed to salt
water that do not interlock, must be coated with antifouling paint.
Use water-based antifouling paint only. Never use ketone-based
paint, since ketones can attack many types of plastic possibly
causing damage to the transducer. Apply paint every 6 months or
at the beginning of each boating season.
Cleaning
Clean the assembly with a soft cloth and mild household
detergent. If fouling occurs, use a stiff brush or putty knife to
remove the growth being careful to avoid making scratches on the
transducer face. In severe cases, wet sand the surface with fine
grade wet/dry paper.
Servicing the Paddlewheel
CAUTION: The paddlewheel must be oriented correctly to
measure boat speed.
If the P32 paddlewheel becomes fouled or inoperable, it can be
removed for cleaning. Gently push back one retaining arm and
slide the shaft out.
Orient the short side of the paddlewheel blades as shown in
Figure 7. Reinsert the shaft in the lower set of holes by pushing
back on the retaining arms. Be sure the shaft ends are secure in
the retaining arm notches.
Sensor Replacement, Parts & Accessories
The information needed to order a replacement Airmar sensor is
printed on the cable tag. Do not remove this tag. When ordering,
specify the part number, date, and frequency. For convenient
reference, record this information on the top of page one.
Lost, broken, or worn parts should be replaced immediately. The
water-lubricated paddlewheel bearings have a life of up to 5 years
on low-speed boats [less than 10kn (11MPH)] and 2 years on
high-speed vessels. Purchase parts from your marine dealer or
instrument manufacturer.
Paddlewheel Kit
33-007
Bracket & Wedge Kit
20-154-04
Portable Bracket Kit (see Figure 8)
33-173
Obtain parts from your instrument manufacturer or marine dealer.
Gemeco
Tel: 803.693.0777
(USA)
Fax:
803.693.0477
email:
Airmar EMEA
Tel:
+33.(0)2.23.52.06.48
(Europe, Middle East, Africa) Fax:
+33.(0)2.23.52.06.49
email:
Figure 8. Portable Bracket Kit 33-173
AIRMAR
®
AIRMAR
®
Figure 7. Orienting the paddlewheel
The paddlewheel must
be oriented correctly to
measure boat speed.
short side of
paddlewheel blade
retaining
BOW
use lower hole
arm
Copyright © 1995 - 2011 Airmar Technology Corp. All rights reserved.
AIRMAR
®
TECHNOLOGY CORPORATION
35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA
www.airmar.com