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NAVIGAT X MK 1 Mod. 10 / SR-180 MK 1 Mod. 10
056310
3-149 MK110ENG.P65
1
DESCRIPTION
1.1
Design and Main Features
NAVIGAT X Mk 1 / SR-180 Mk 1 is a microprocessor controlled gyrocompass system
with integrated automatic north speed error correction.
The system is type approved by the German Federal Maritime and Hydrographic
Agency (BSH) and complies with IMO resolutions A.424 (IX) and A.574 (14) as well
as DNV-W1 and ISO standard 8728.
For use in high speed craft, an optimized system is available, which complies with
IMO resolution A.821 (19) - HSC.
C. PLATH's unique method of supporting the gyrosphere by means of mere buoy-
ancy ensures north stabilization during short power failures. For example, after a
three minute loss of power, no more than two degrees of deviation may be expected.
Once power has been restored, the gyrocompass will return quickly to the correct
heading without requiring the usual settling period. The combined effects of the twin
rotors an the liquid damping system virtually eliminate latitude error.
Heading is measured as a 12 bit absolute value by means of a digital shaft encoder.
The high-speed follow-up system (> 100°/sec.) ensures extremely accurate meas-
urements of heading and rate of turn under all operating conditions.
The system features an integrated TMC-function (magnetic compass transmission)
and input interfaces for a second gyrocompass, speed log, position receiver and two
rudder angle feedback units.
The gyrocompass provides 12 independent serial data outputs to analogue or digital
repeaters (including short-circuit-proof 24 VDC repeater power supply), RS 422 and
NMEA sensor data outputs, a special NMEA Fast output interface (reduced dataset)
and a NMEA Superfast output interface (adjustable baudrate, max 38400 baud). Fur-
thermore, two 6 step/° heading outputs, an analogue rate of turn output and an inter-
face for the voyage data printer NAVIPRINT are provided.
Integrated monitoring and alarm functions for the supply powers, gyroscope temperatur
and current and the follow-up system ensure secure and trouble-free operation of the
system.
The single unit design with a polyurethane hard foam housing of low weight allows
the gyrocompass system to be installed on any bridge, from large yachts to the most
capacious merchant vessels. If required, the integrated control and display unit may
be installed at a remote location from the gyrocompass or an additional remote oper-
ating unit installed.
As an option, a special "compass monitor" control unit is available, which provides
additional independent monitoring functions and features a numerical keypad, which
facilitates the operation of the system.
An optional switch-over unit for twin gyrocompass systems provides for complete
redundancy of all in- and output signals and thus ensures the independence of the
individual compasses.
