Raymarine axiom 7 Installation Instructions Manual page 97

Testing the transducer
Transducer operation should be checked before installation.
1. Connect the transducer to the multifunction display's transducer connection.
2. Fully submerge the transducer in water.
3. Power up the display.
4. Open a Fishfinder application on your display.
5. If required, select the relevant transducer/channel from the Channel selection page (Menu >
Channel).
6. Check that accurate depth and temperature readings are displayed.
7. If you experience difficulties obtaining readings then contact Raymarine Technical Support.
Warning: Transducer operation
Only test and operate the transducer in the water. Do NOT operate out of water
as overheating may occur.
Selecting a location for the transducer
The guidelines below should be followed when selecting a location for the transducer.
Note: The transducer is not suitable for mounting on vessels where the transom is aft of the
propeller(s).
For best performance the transducer must be installed in a location with the least turbulence and
aeration. The most effective way to determine this is by checking the water flow around the transom
whilst underway.
• Mount close to the keel (centerline), in a position where the transducer element will be fully
submerged when the vessel is planing and turning.
• Mount a suitable distance from the propeller(s) to avoid wake.
• Mount in a location where no load will be applied to the transducer during launching, lifting,
trailering and storage of the boat.
• For clockwise rotating propellers, mount the transducer on the starboard side, for
counter-clockwise, mount on the port side.
• On a twin engine vessel mount the transducer between the engines.
• Turbulence can be caused by a number of other factors such as steps (1), ribs (2), rows of rivets (3)
and strakes (4). The turbulence appears aft of these locations.
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