Furuno ETR-30N User Manual download pdf (Page 20)

1.1.3 Stacking units

You may stack two network sounders by using the optional piggyback mount kit (Type

OP02-84, Code No. 002-186-170) as below.

Note: Change the tap setting on the lower unit before installing the upper unit. See

paragraph 2.2 for how to change tap setting.

Contents of piggyback mount kit

Name Type Code No. Qty Remarks

Jointing Fixture (LWR) 02-142-1131 100-300-211 1

Jointing Fixture (UPR) 02-142-1132 100-300-221 1

Hexagon Head Bolt B M5 x 12 000-803-147 2

Pan Head Screw B M4 x 8 000-881-445 15

FURUNO

NETWORK SOUNDER ETR-30N

HOST NAME

TX/STBY POWER

OFF

DEFAULT

FURUNO

NETWORK SOUNDER ETR-30N

HOST NAME

TX/STBY POWER

OFF

DEFAULT

# = Screw location (15)

Jointing Fixture (UPR)

Hexagon

Head

Bolt B

Pan Head Screw B

Jointing Fixture (LWR)

SIDE VIEW

Remove mounting feet.

How to assemble the piggyback mount kit

1.2 Transducer

The performance of this sounder is directly related to the mounting location of the

transducer. When selecting a mounting location keep in mind the following points:

•

Select a location not influenced by air bubbles and engine noise.

•

As a general rule the position between 1/3 and 1/2 of ship’s length from the bow is

usually a good location.

•

The face of the transducer must be facing the sea bottom under normal cruising

conditions.

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Furuno ETR-30N User Manual Page 20

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