User's Manual

Table Of Contents
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
I-4 Multi Function Display
I General.fm / 10.11.11
I-37
NACOS Platinum
4.3.1 Nominal Viewing Distance
The monitors are designed according to IEC 62388. In chapter 6.13.2 of this test standard a maximum
pixel pitch of 0.29 mm per metre of nominal viewing distance (1 min of arc) is required. Both monitors
have a pixel pitch of less than 0.29 mm. The requirement is fullfilled.
Further-on above standard references to IEC 60945, Clause 4, where a minimum text height is required
with 3.5 mm per metre of nominal viewing distance and at least 11 pixels.
The RADARPILOT as well as CHARTPILOT application provide text heights on both monitors (independent
of monitor size) as follows:
- "Large font with 5.5 mm
- "Medium size font with 4.5 mm
- "Normal size font with 3.5 mm
- "Small font with 2.5 mm
The small font is not used for navigation related tasks.
The normal size font is used for navigation and determines the nominal viewing distance with 1
metre for both monitors.
This is sufficient for sitting positions in front of one of the workstations (typically 0.8 metre) as well as
for a standing position in front of the centre steering console (typically 1.0 metre). In this case the
console has a depth of max. 0.8 metre.