Specifications

5.2.6.4.6
use.
5.2.6.4.7
Smud~indsmearing.
MIL-STD- 1472E
The plot should resist smudging or smearing under operational
Annotation. Where applicable, plotters and recorders should be designed or mounted
so that the operator can write on or mark the paper while it is still in the plotter or recorder.
5.2.6.4.8 Control, replenishment and service. Plotters and recorders shaUconform to criteria
herein with regard to:
a. controls and displays used to starL stop or adjust the machine and critical operating elements;
b. positive indication of the remaining supply of plotting materiaIs (e.g., paper, ink, ribbon);
c. insertion, adjustment, and removal of paper, replenishment of ink supply, replacement of
pen, or other operator tasks, without requiring disassembly, special equipment or tools; and
d. minor servicing on site by a technician, e.g., adjustment of drive system, ckaning, or
rephtcement of operating items that ordinarily would not be available to an operator.
5.2.6.5 Flags.
5.2.6.5.1 ~. Flags should be used to display qualitative, non-emergency conditions. Use of
flags should conform to Table III.
5.2.6.5.2 Mounting. Fiags shall be mounted as close to the surface of the panel as possible
without restricting theii movement or obscuring necessary infOrXAatiOn.
5.2.6.5.3 SnaD
action. Flags shall operate by snap action.
5.2.6.5.4 Contrast A luminance contrast (see MIL-HDBK- 1908) not less than 3.0 shall be
provided between flags and their backgrounds under all expected lighting conditions.
5.2.6.5.5 Malfunction indication. When flags are used to indicate the malfunction of a visual
display, the malfunction position of the flag shall obscure part of the rnalfimctioning display and shall
be readily apparent to the operator under all expected levels of illumination.
5.2.6.5.6 Legend When a legend is provided on the flag, the lettering shall appear upright
when the flag assumes the active or no-go position.
5.2.6.5.7 Test movision A convenient means shall be provided to test the operation of flags.
5.2.6.6 ~SDl
. . .
ays.
5.2.6.6.1 Use. Providing ambient light can be properly controlk4 optical projection displays
are suitable for afications requiring group presentation, pictorial and spatial information, past history
vs real-time presentation, synthetically generated pictures, simulation of the external world, and
superposition of data from more than one source. Rear projection shall be used where physical
obstructions to front projection impair viewing or where work areas require high ambient illumination
[4N , Alwi ddik ilies.
5.2.6.6.2 Seatintzarea. Vk!wng cixstancchrnagewrdth rehmonsiup and off-center viewing vi
qwicat projection displays for group viewing shouki conform to the preferred limits of Table IV and
shall not exceed the acceptable hm!ts mdlcated. For individwd viewing [run a freed kaliun, o[f-
.vl?lrr]inc f’icl~’ing~h:lllnot c~crcd Inn