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1. Description

2. Safety Precaution

3.Preface

Measures light from visible luminaries equipped with white light LED, fluorescent,

metal halide, high-pressure sodium and incandescent sources.

• Do not operate the meter under the environment with explosive gas (material),

combustible gas (material) steam or filled with dust.

• In order to avoid reading incorrect data , please replace the battery immediately

when the symbol “

”appears on the LCD.

• In order to avoid the damage caused by contamination or static electricity, do

not touch the circuit board before you take any adequate action .

• Operating Environment: Indoors use, This instrument has been designed for

being used in an environment of pollution degree 2.

• Operation Altitude : Up to 2000 M.
• Operating Temperature & Humidity : 5 C~40 C,0%~70%RH.
• Storage Temperature & Humidity :-10

60

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,

˚

˚

˚

˚

C~

C,0%~70%RH.

EMC:EN61326-1(2006) . IEC61000-4-2(2006).
IEC61000-4-3(2006)+(2007).

Be extremely careful for the following
conditions while measuring.

CAUTION

3

LED Light Meter User Manual

Содержание MT942

Страница 1: ...14 MT942 LED Light Meter User Manual LED Light Meter User Manual Light Source R AVG NO AVG MEM M...

Страница 2: ...ce 4 Features 5 Specifications 6 Operation 7 Luminous Intensity Measurement 8 Instrument Description 9 Attention 10 Recommended Levels of Illumination 11 Battery Replacement 12 End Of Life Page 3 3 3...

Страница 3: ...Temperature Humidity 10 60 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...

Страница 4: ...ar corrected According to JIS C1609 1993 and CNS 5519 general A class Specifications Measuring lights source LED white light and all visible light Measuring intensities of illumination in Lux or footc...

Страница 5: ...if any digits appear on the LCD screen when the light sensor cap is not attached CAP will be shown on the Data Hold ZERO 4 Display Sensor Measuring Range Accuracy Angle deviation from cosine character...

Страница 6: ...an change the calibration parameters as to 1 002 the display changes immediately set 200 0 1 008 201 6 press L S button for less than 1 second LCD Light source below the LN flashing pressure or change...

Страница 7: ...ss or button to select ft feet or meter 5 Press button for less than one second 6 Press or button to set the distance between the light center of lamp and measurement base level 7 Press button for les...

Страница 8: ...N and setup upward 5 Real time auto zero 6 Power ON OFF and disable auto power off 7 Setup downward 8 DATA HOLD and light source select L S 9 Photo detector MEM READ L S Lux FC CD LED Light Meter ZERO...

Страница 9: ...light is located at the right top end 0 degree of the light sensor ball plane When the meter is not in use please keep the cap of the light sensor in its place to avoid the photo diode from wearing ou...

Страница 10: ...minance lux 3000 to 1500 1500 to 750 750 to 300 300 to 150 75 to 30 Place Where such work as assembling inspecting testing selecting extremely precision Visual work Assembling inspecting testing selec...

Страница 11: ...e battery 3 install the battery cover If the symbol appears on the LCD please replace the battery immediately WARNING Caution this symbol indicates that equipment and its accessories shall be subject...

Страница 12: ...14...

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