Brochure

48
+50°C
-20°C
IP54
PLC
ADDITIONAL INFORMATION:
ORDER SPECIFICATIONS:
TECHNICAL SPECIFICATIONS:
TECHNICAL DIAGRAMS:
see page 285
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Integrated into the KombiSIGN
Signal Towers, the new EVS
LED Element generates a highly
attention-grabbing signal
•
Random sequence of light signals
prevents acclimatisation effect
•
For signalling extremely
hazardous situations and the
need for immediate action
Voltage 24 V
red 843 140 55
green 843 240 55
yellow 843 340 55
clear 843 440 55
blue 843 540 55
DC
AC
AC/DC
* EVS = Enhanced Visibility System or Enhanced Visibility System
Further informationen can be found in the chapter ”Tech-Talk“ on page 326.
EVS – Attention-grabbing light effect on neurobiological basis
The flickering of neon lamps and comparable light effects are highly effective at attrac-
ting our attention. The neurobiological basis of this phenomenon is explained by a uni-
versity scientist as follows: Light signals are processed in the human brain, not directly
in the eye.
In order to be consciously registered there, incoming stimuli first have to pass through
a form of filter. This filter has a “protective” function. During sleep it reduces disturbing
stimuli to a minimum and assists in “overlooking” regular or continuous signals.
EVS – Flickering light without acclimatisation effect
On the basis of this understanding, WERMA’s R+D department set out to find a flickering
light with a high degree of effectivity in attracting attention. In a multistage laboratory
experiment 20 test candidates were asked to judge a series of different light signals and
to determine the most eye-catching light. The result of the study was a stochastic flicke-
ring light with optimal attention-grabbing characteristics: EVS – Enhanced Visibility
System! The light effect of this system is completely new and distinguishes it from all
previous systems.
Dimensions (Ø x Height): 70 mm x 65.5 mm
Lens: PC, transparent
S
eal: Pre-mounted with each element
Number of modules
possible: 5, with 2-sided bracket max. 10
Current consumption: red / yellow: 200 mA
green / blue / clear: 150 mA
843 LED EVS* Element for KombiSIGN 70
•
Attention-grabbing flickering light
• Developed on a neurobiological
basis
• Extremely powerful signal effect
Signal Towers
●
modular
KombiSIGN 70
Optic chiasm
Brain
Right eye
Optic nerve
Left eye
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The way in which the brain
processes visual stimuli formed
the basis for the development of
the new EVS technology
www.werma.com