TSM1330C User's Manual
Page 6 Revision 1.0
In the area of the wheel house, the distance of each electronics unit from the magnetic standard
compass or the magnetic steering compass must not be less than the permitted magnetic protection
distance. This distance is measured from the centre of the magnetic system of the compass to the
nearest point on the corresponding unit concerned.
Units which are to be used on the bridge wing must be installed inside the “wing control console”
protected against the weather. In order to avoid misting of the viewing screen, a 25 ... 50 W console-
heating (power depending on the volume) is recommended.
When selecting the site of a display unit, the maximum cable lengths have to be considered.
When a product is being installed, the surface base or bulkhead must be checked to ensure that it is
flat in order to avoid twisting of the unit when the fixing screws are tightened, because such twisting
would impair mechanical functions. Any unevenness should be compensated for by means of
spacing-washers.
The grounding screws of the units must be connected to the body of the ship (ground); the wire used
should have a cross sectional area of at least 6 mm2.
Transportation damage, even if apparently insignificant at first glance, must immediately be examined
and be reported to the freight carrier. The moment of setting-to-work of the equipment is too late, not
only for reporting the damage but also for the supply of replacements.
The classification is only valid for approved mounting brackets provided by Maretron. The unit shall
be mounted stand-alone without any devices or loose parts placed at or nearby the unit. Any other
type of mounting might require test and re-classification.
2.3.2 Ergonomics
Adjust the unit height so that the top of the screen is at or below eye level. Your eyes should look
slightly downwards when viewing the middle of the screen.
Adjust screen inclination to remain gaze angle to the centre of the screen approximately
perpendicular to the line of gaze.
When products are to be operated both from a sitting position and from a standing position, a screen
inclination of about 30° to 40° (from a vertical plane) has turned out to be favorable.
The brightness of displays is limited. Sunlight passing directly through the bridge windows - or its
reflection –which falls upon the screen workplaces must be reduced by suitable means (negatively
inclined window surfaces, venetian blinds, distance from the windows, dark coloring of the deckhead).
These units are equipped with optical enhanced technology to reduce reflections and are viewable in
direct sun light, but as a general rule the units at the bridge wing area is recommended to be installed
or mounted by suitable alignment or bulkhead /deckhead mounting in such a way that reflections of
light from the front panel of the display are not directed into the observer’s viewing direction.
The use of ordinary commercial filter plates or filter films is not permitted for items of equipment that
require approval (by optical effects, “aids” of that kind can suppress small indicators, for example).
