The NAVIGAT X MK 2 gyrocompass (fig. 4.13) is a compact, one-unit design that runs on a 24-volt power supply with two independent DC inputs. It can drive up to four analogue repeaters and provides five additional serial data outputs and one six-
steps/degree output. Based on the proven Sperry Marine NAVIGAT X MK 1 design, the new gyrocompass provides better than 40,000 hours mean time between failures. The system remains north-stabilized for up to three minutes in the event of a power interruption. The NAVIGAT X MK 2 complies with International Maritime Organization (IMO) regulations A.424(XI) and A.694(17) as well as the International Standards Organization (ISO) standard 8728, and is fully Wheelmark type approved.
The introduction of this new gyrocompass completes the Sperry Marine range of heading sensors, which now comprises the NAVIGAT 2100 fiber-optic gyrocompass, NAVIGAT X MK 1 and NAVIGAT X MK 2 digital gyrocompasses and the NAVISTAR satellite compass.
Comprises one single unit.
Power supply: two independent 24 VDC inputs.
Control and display in front cover (not removable) with 4-digit heading display and 6 operating keys
Static < 0.1°secant latitude
Dynamic ..< 0.4°secant latitude
Settle point error ..< 0.1°secant latitude
Automatic static north speed error correction no extra unit required.
High speed transmission and follow-up system 100°/sec.
Highly accurate heading data transmission by shaft encoder.
Self-aligning repeater compasses with serial interface IEC-61162-1 / RS 422.
Gyro system remains north-stabilized during power interruptions of up to three minutes.
Twin rotors (19.000 rev./min.) and liquid damping system eliminates latitude error.
±180°electronic alignment error correction in setup program (mechanical correction notnecessary).
High MTBF (40.000 hours).
18-month maintenance intervals
Monitoring and alarm functions for all voltages, gyroscope current and follow-up system.
Short maintenance and repair times low service costs
Permanent storage of operational data (gyrosphere current, temperature, elapsed operation time).
NAVIPRINT navigation data printer, selectable through one of the available RS 422 interfaces.
The optional configurations of the gyrocompass may include the Multifunction Digital Display NAVIDATA (fig. 4.15), Universal Digital Repeater (fig. 4.16), Compass Monitor NAVITWIN III and MAGNETIC Compass with fluxgate.