Datasheet

63
www.werma.com
Signal Towers
●
modular
KombiSIGN 70
+50°C
-20°C
IP54
TECHNICAL DIAGRAMS:
see page 288
ADDITIONAL INFORMATION:
EVS – Attention-grabbing light effect on neurobiological basis
The flickering of neon lamps and comparable lighting 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.
* EVS = Enhanced Visibility System
NE
W
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
ORDER SPECIFICATIONS:
Dimensions (Ø x Height): 70 mm x 65 mm
Dome: PC, transparent
Number of modules
possible: 5, with 2-sided bracket max. 10
Starting consumption: < 500 mA at 24 V
Current consumption: red / yellow: 200 mA
green / blue / clear: 150 mA
TECHNICAL SPECIFICATIONS:
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840 EVS* LED Element for KombiSIGN 70
• Attention-grabbing flickering light
• Developed on a neurobiological
basis
• Extremely powerful signal effect
• Random sequence of light signals
prevents acclimatisation effect
• For signalling extremely
hazardous situations and the
need for immediate action
Integrated into the KombiSIGN
Signal Towers, the new EVS
LED Element generates a highly
attention-grabbing signal
The way in which the brain
processes visual stimuli formed
the basis for the development of
the new EVS technology
Optic chiasm
Brain
Right eye
Optic nerve
Left eye
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