Specifications
MIL-STD-1472E
5.2.3 .1.5.2 intermediate marks. The number of minor or intermediate marks between
numbered scale pointers shall not exceed nine.
5.2.3.1.6 Numerals.
5.2.3 .1.6.1 Maior marks. Except for measurements that are notmally expressed in decimals,
whole numbers shall be used for major graduation marks.
5.2.3 .1.6.2 Startirwpo
int. DispIay scale shall start at zero, except where this would be
inappropriate for the function involved.
5.2.3.1.7 Pointers.
5.2.3 .1.7.1 Length The control or display pointer should extend to, but not overlap, the
shortest scale graduation marks.
5.2.3 .1.7.2 Tip conl%ntration. The pointer tip should be tapered at a 20° angle (40° included
angle), terminating in a flat tip equal in width to the minor scale graduations.
5.2.3 .1.7.3 Mounting. The pointer shall be mounted as close as possible to the face of the dial
to minimize parallax.
5.2.3 .1.7.4 Color. Pointer color from the tip to the center of the dial shall be the same as the
color of the marks. The tail of the pointer shall be the same color as the dial face, unless the tail is used
as an indicator itself or unless the pointer is used for horizontal alignment.
5.2.3.1.8 Luminance contrast. A luminance contrast (W MIL-HDBK- 1908) not less than 3.0
shall be provided between the scale face and the markings and pointer.
5.2.3.1.9 Calibration information. Provision shall be made for placing calibration information
on instruments without degrading dial legibfity.
5.2.3.1.10 Coding.
5.2.3 .1.10.1 LJse. Coding on the face of scale indicators maybe used to convey such
information as desir~ operating range, inefficient operation, caution, and dangerous level.
5.2.3 .1.10.2 Pattern-or color-kg. Operating conditions that always fall within a given
range on the scale shall be made readily identifiable by applying pattern-or color-coding to that range.
5.2.3 .1.10.3 Choice of colors. Red, yellow, and green maybe apphed, provided (hey conform
to the meanings specified in 5.2.2.1.18 and are distinguishable under all expcted lighting conditions.
5.2.3 .1.10.4
Pattern coding. Zone scales may be shape coded when the indicator must be
viewed in blackout conditions or where the illummant co!or will cause difficulty Incolor band
d]scnmmatmn.
s.2,3. 2 Moving-pointer, fixed-~w.de.@Xw
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