Beyond time: the technology and precision behind industrial LED clocks

What are the engineering challenges involved in designing an outdoor clock capable of operating 24 hours a day, 365 days a year, whether under the blazing sun or in harsh winter weather?

In public spaces, industrial sites and along high streets, a clock is not simply a
display: it is a key visual landmark for members of the public, workers and motorists.
But what are the engineering challenges involved in designing an outdoor display
capable of operating 24 hours a day, 365 days a year, whether under the blazing sun
or in harsh winter weather?
In this issue, we explore the technology, features and versatility of large-format LED
clocks.
1. Absolute accuracy guaranteed by GPS
An inaccurate public or industrial clock immediately loses its usefulness. To eliminate
any time deviation and remove the need for manual adjustments (including the
switch between standard and summer time), the Hitechled range of clocks features a
built-in GPS device for automatic time correction. The display constantly receives the
satellite signal, ensuring atomic-level accuracy to the nearest second.
2. Outdoor engineering: aluminium and FR4 sun
protection
The readability and lifespan of an outdoor LED display depend on its ability to
withstand the elements and ultraviolet radiation. Our industrial clocks are not simply
adapted versions of indoor products, but are engineered with:
A welded, oven-baked aluminium casing: to ensure maximum mechanical
strength, watertightness and corrosion resistance.
Internal front panels made of FR4 Vetronite: specially developed to shield
components from direct sunlight and prevent thermal degradation of the LEDs.
Industrial circuit boards: to guarantee uninterrupted operation even in the
face of extreme temperature fluctuations.
3. Not just the time:
environmental data updated continuously
As well as displaying the time, the instant visual display provides the user with useful
information at a glance.
Hitechled displays are available in two main configurations:
ODT model: displays the time, date and temperature in sequence.
ODTU model: adds the measurement and display of relative humidity.
4. Buying guide: sizes, modularity and colours
Each installation context requires different proportions to ensure an optimal viewing
distance. The entire range is designed and assembled directly at the Hitechled
factory in Treviso:
Configurations: available in both single-sided (ODTM) versions for wall
mounting and double-sided (ODTB) versions for cantilever or pole mounting.
Character height: from 12 cm, 17 cm, 23 cm, 30 cm up to 40 cm for the
standard range, up to maxi-formats of 1,200 mm and 1,800 mm for visibility
from a great distance.
LED colour options: a wide choice of colours to complement the visual
identity of the surroundings (Red, Amber, Blue, Green, White).
5. Ideal contexts for use
Petrol stations and Park & Ride facilities: to provide motorists with
immediate information.
Industrial sites and logistics hubs: for shift monitoring and security in
vehicle yards.
City information points and public spaces: installed on municipal buildings,
in squares or at stations.
Sports facilities and shopping centres