background image

Operating Instructions for

ZETFON - Fonomat 4x70s

3/3

3. Installation

3.1

ZETFONs

The ZETFONs 70s are supplied readily installed on a stainless rail which is to
be screwed on a console on the mast or the bridge roof. The whistles must be
installed as high as practicable on a vessel, in order to reduce interception of
the emitted sound by obstructions and also to minimize hearing damage risk
to personnel. The ZETFONs have to be installed in a way that the sound
horns point in the forward direction of the vessel. The sound horns must be
arranged vertically.

3.2

Control and Amplifier Unit

The control and amplifier unit ZP 9 Mi must be installed within easy reach o
the bridge or in the bridge console. The minimum distance to the magnetic
compass is one meter. The control unit ZETFON-Fonomat with the
operational elements must be installed in the front plate of the bridge console
easily accessible to the bridge personnel.

4. Electric Installation

The electric installation has to be carried out in accordance with the enclosed
connection diagram.

4.1

Cable and Cable Connections

The control and amplifier unit receives its operating voltage 24 V DC from the
board mains. Immediately after connection, the unit is ready for operation. The
heating requires a separate 24 V DC supply.

Note: All necessary cables must be in accordance with the minimum
requirements of the corresponding classification societies. Cables with a cross
section of less than 1.5 mm

2

 may not be used.

If - after installation - during operation and after strong mechanical stress the
unit produces malfunctions, first of all the cables and cable connections must
be checked for proper seat. If - when switched on - the unit produces crackling
noise when cables are moved, the cables causing this noise must be
exchanged.

4.2

Protection against Cross Connection

If, by error, the battery poles at the connection of the control and amplifier unit
ZP 9 have been mixed up the diode D1 causes the release of fuse F1. After
changing the poles and replacing the fuse the unit is ready for operation
again.

4.3

Fuses

The fuses 

 5x20 oK, 6,3 and 2 A are arranged on the PC-board for power

supply.

12/02 Fl

ZÖLLNER - KIEL

01808302.03-4e

Subject to alteration!

Reviews: