Preface - koban KDL-02-LED Manual Del Usario

KDL-02-LED
LED Light Meter
•Storage Temperature & Humidity :-10˚C~60˚C,0%~70%RH.
•EMC:EN61326-1(2006) . IEC61000-4-2(2006).
•IEC61000-4-3(2006)+(2007).

3. Preface

The flux of light received in a unit area of a certain side being
shown is popularly
known as illumination . The measuring unit in both United
Kingdom and America is known as footcandles light ,but in
Europe it is also known as meter candlelight.
One foot-candles light is the illumination of light that falls on
one side which is
one foot away from a one foot-candlelight and exactly intersecting
with the light .
Its abbreviated form is written as 1 Fc= l Lm/ft, similarly,
one-meter candlelight is the illumination of light that falls on a
side which is one meter away from a one
meter candlelight and exactly intersecting the light. It is also
called Lux i, e. the flux of light being received in each sq. meter is
called the illumination of one lumen.
1FC=10.764 LUX, 1LUX= 0.09290 FC,
4
Nbr .of Lumen
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