User's Manual

Table Of Contents
NACOS Platinum
ED 3100 G 110 / 02 (2011-10)
Operating Instructions
A-1 General Information
A RADAR.fm / 10.11.11
A-4
1.1 RADAR Safety
The radar can perform its safety function only if it is in proper state. Observe the following rules to
ensure correct functioning of the radar.
- Check the radar’s transmission power and the receiver sensitivity regularly by means of the perform-
ance monitor – see RADAR part of the operating instructions.
- Position receivers connected to the NACOS Platinum system must comply with the standard IEC
61162-1, which
largely corresponds to NMEA 0183.
- ARPA target data directly depend on the accuracy and proper functioning of the selected speed
sensor and the gyro compass.
- Correct interpretation of indicated data requires knowledge about the implemented Consistent
Common Reference System
(CCRS). See chapter III - 2.1 on page 16.
1.1.1 RADAR Safety – Electrical Systems
If the units are to be disconnected from the ship's mains, keep in mind that each antenna unit, each
transceiver electronics unit and each indicator has its own supply of power from the ship's mains.
If synchro transmitters are used for the transfer of signals, e.g. transfer of the heading signal from
the compass system, a dangerous voltage is present in the units until the reference voltage is
switched off.
Pay particular attention to the notes and warnings referring to possible faults in
the radar display, since such faults can impair the detection of targets.
HIGH VOLTAGE!
Even when the equipment is switched off, there can be dangerous voltage present
at exposed contacts in the units. Therefore, before a unit is opened, it must be
ensured that the voltage supply to the unit is disconnected from the ship's mains,
and that it remains disconnected.
Because of the capacitors contained in the units, there can be a dangerous
voltage present in any unit several minutes or even for hours after switching off
and disconnection from the mains supply. The different electronic units of the
RADAR system may be opened by qualified, trained persons only.
If it should be necessary to work on gearboxes while they are opened, pay special
attention to the setting of the high-voltage supply switch (interlock). It is situated
inside the gearbox and switches off the high voltage of the transceiver as soon
as the cover of the gearbox is opened. BUT: For service purposes the interlock
can be set into a position that high voltage is present inside the gearbox. Refer
to the technical manual for details.