Ergonomics; Cables; Cable Entries & Connectors (Marked Area) - Illustration Only - Hatteland HD 12T21 MMD User Manual

General Installation Recommendations

Ergonomics

1. The front surface of the display glass has an anti-reflective (AR) coating which can be scratched and damaged with
improper cleaning. It is recommended to use only 90+% pure Isopropyl alcohol (Isopropanol) and a soft fabric
cloth for this first cleaning. Fold a cloth into a small pad, dampen the cloth with alcohol, and wipe the glass from
one edge to the other in one direction with one continuous motion. The product glass will require cleaning as
needed. The soft cloth & alcohol wipe is recommended to clean fingerprints and oils off the glass. Water stains
(including coffee, tea & coke) should be first cleaned off the glass with a soft fabric cloth wet with water,
immediately followed with wiping using an alcohol wetted cloth.
2. 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.
3. Adjust screen inclination to remain gaze angle to the centre of the screen approximately perpendicular to the line of
gaze.
4. 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 favourable.
5. 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 colouring of the deckhead). However, units can be offered with
optical enhanced technology and/or High Bright panels 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 pane of the display
are not directed into the observer's viewing direction.
6. 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 radar targets, for example).
7. For ECDIS applications, the minimum recommended viewing distance are as follows:
(IEC62288, Part 7.5 Screen resolution)
17 inch = 908mm 19 inch = 1011mm

Cables

Use only high quality shielded signal cables.
Cable Entries & Connectors (Marked area) - Illustration only
Bottom View
Installation
IND100078-29
20 inch = 878mm 23 inch = 1011mm
21
27 inch = 1000mm
Back View