SYSTEM CONFIGURATION
xxii
Category of units
• Antenna units: Exposed to the weather. • Other units: Protected from the weather.
Notes
1) The gyrocompass must be type approved for compliance with IMO resolution A.424(XI) (and/
or resolution A.821(19) for installation on HSC). The gyrocompass must also have an update
rate that is adequate for the ship’s rate of turn. The update rate must be better than 40 Hz
(HSC) or 20 Hz (conventional vessel).
2) The EPFS must be type approved for compliance with IMO resolution MSC.112(73).
3) The monitors listed in the following table have been approved by the IMO.
If a different monitor is to be used on IMO vessels, its effective diameter must meet the appli-
cable Category requirements.
*: CCS approved only (not approved by MED). When WE270FU is used with FAR-20x8-
MARK-2, the equipment is non-compliant with both CCS and MED.
For installation and operation of other monitors, see the respective manuals.
For BB type, a monitor unit is prepared by user.
4) Characteristics of contact output for Alarm:
• (Load current) 250 mA;
• (Polarity) Normally Open: 2 ports, Normally Close: 2 ports;
• Serial I/O for alarm is also possible, which complies with IEC 61162-1.
• CAT 1 and CAT 1H: effective diameter of 320 mm or higher
• CAT 2 and CAT 2H: effective diameter of 250 mm or higher
• CAT 3: effective diameter of 180 mm or higher
Category Manufacturer Model Viewing distance
CAT 1 and
CAT 1H
FURUNO MU-231 1.20 m
MU-270W 1.02 m
Hatteland Display JH 23T14 FUD 1.20 m
HD 26T21 MMD 0.99 m
HD 26T22 FUD 0.99 m
HD 27T22 FUD 1.07 m
HD 32T22 FUD 0.64 m
HD 55T22 FUD 1.09 m
North Invent WA270-01-MON-01 1.07 m
WE270FU* 1.07 m
WA460-01-MON-01 0.60 m
CAT 2 and
CAT 2H
FURUNO MU-190/MU-190HD 1.02 m
Hatteland Display JH 19T14 FUD 1.02 m
JH 20T17 FUD 0.88 m
HD 19T22 FUD 1.02 m
HD 24T21 FUD 1.12 m
HD 24T22 FUD 1.12 m
CAT 3 FURUNO MU-152 1.02 m
Hatteland Display JH 15T17 FUD 1.02 m
HD 15T22 FUD 1.02 m
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