Major tech MT942, User Manual

Page: 7 / 12

• READ ( read memory )
• CLEAR( clear memory )
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7. Luminous Intensity Measurement
Press button for more than one second to display the store values , the
LCD will display R and MEM and NO . 01~ NO . 99, press or Keys to
review all the stored values , for example , NO.1 NO.2 until NO.99 . Press
the button for more one second to disable this feature.
When power is off, press and buttons together,then the screen will
display “Clr ” which means the memorized data is erased .
1. Press the “ ” button to turn power on or off .
2. Remove sensor cap and place the sensor perpendicular to the light .
3. Press “
” button for more than one second .
4. Press 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 less than one second.
8. Read the display.
9. Press “
” button for more than one second to disable the feature .
The luminous intensity is calculated using the following formula:
Luminous intensity (cd) =illumination (LUX) × distance (m²)
The preset maximum distance is 0.01 ~ 30.47 m or 0.01 ~99.99 ft.
If a single light source is used and is regarded as a single-point light source ,
the luminous intensity of the light source can be calculated and displayed, by
setting the distance from the light source to the measuring point.
6.
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MEM
READ
MEM
READ
MEM
READ
Lux
/FC
CD
Lux /FC
CD
Lux
/FC
CD
Lux /FC
CD
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LED Light Meter User Manual