REED LM-81LX User manual
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Model
LM-81LX
Light Meter
Instruction
Manual
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
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2
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Table of Contents
Features......................................................................................... 3
Specications................................................................................ 3
Instrument Description .................................................................. 4
Operating Instructions................................................................5-6
Zero Offset Adjustment of Light Function .................................... 5
Hold Function ............................................................................. 5
Data Record Function ................................................................. 5
Auto Power Off ........................................................................... 6
Battery Replacement..................................................................... 6
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3
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Features
• Designed for one-hand operation and to t easily into a tool belt
or pocket
• Auto-ranging
• User selectable Lux / Footcandles
• Min/Max and Data hold functions
• Auto shut off and zero adjustment button
• Over range and low battery indication
• Battery included
Specifications
Display: 13 mm LCD display
Operating Humidity: Max 80% RH
Operating Temperature: 0 to 50°C (32 to 122°F)
Power Supply: 006P DC 9V battery (Heavy-duty type)
Power Consumption: Approx DC 6.2 mA
Weight: 160g (battery included)
Dimensions: 156 x 60x 33mm (6.14 x 2.36 x 1.29”)
Optional Accessories: Soft Carrying Case (CA-52A)
Measurement Range Resolution Accuracy
Lux 0 to 2,200 Lux 1 Lux
± 5% rdg ± 8 dgt
1,800 to 20,000 Lux 10 Lux
Foot-candle (Fc) 0 to 204.0 Fc 0.1 Fc
170 to 2,000 Fc 1 Fc
Foot-candle = Ft-cd = Fc
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Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Instrument Description
1. Power Button
2. Hold Button
3. Max/Min Button
4. Zero Button
5. Lux/Ft-cd button
6. Light Sensor
7. LCD display
8. Battery Compartment / Cover
9. Wristlet
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5
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Operating Instructions
1. Power on the instrument by pressing the Power Button.
2. Position the Light Sensor directly under the light source. Mean-
while the light reading value will be displayed on the LCD display.
3. Press the Lux/Ft-cd Button to select measuring unit Lux or Ft-cd.
Zero Offset Adjustment of Light Function
• For best results you should zero the light sensor prior to use in a dark
environment. To achieve this, place the light sensor end of the meter
under a desktop or at surface to block any light. Press the Unit/Zero
Button setting the meter indication to zero.
• The zero point can drift due to environment temperatures, battery
power, as well as various other reasons. It is recommended that the
zero be checked frequently using the above procedure.
Hold Function
Pressing the Hold Button) will freeze the current value with a “HOLD”
symbol on the display. Press again to release the hold function.
Data Record Function
The Data Record function records & displays the maximum and minimum
reading values.
1. Press the Max/Min Button once and the “Max” symbol along with
the maximum value will appear on the display.
2. Press the Max/Min Button again, the “Min” symbol along with the
minimum value will appear on the display.
3. To exit the memory record function, press the Max/Min Button
continuously for at least 2 seconds. The display will revert to the
current reading.
4. Clear the Max/Min value recorded by pressing the Hold Button.
Previous recorded Max/Min value will be given up and then revert
to the REC. function keep on recording.
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Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Auto Power Off
In order to prolong the battery life, the instrument has “Auto Power Off”
function. The meter will switch off automatically if no buttons are pressed
for around 10 minutes.
Battery Replacement
When the left corner of the LCD display shows the low battery symbol,
this indicates that replacement of the battery is then needed. However
measurements could still be taken for another few hours before the meter
becomes inaccurate.
1. Open the Battery Cover at the back of the meter and remove the
battery
2. Replace with a 9V battery (alkaline or heavy-duty type) and
reinstall the cover
For service on this or any other REED product or information on other
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7
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Notes _________________________________________
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________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
www.reedinstruments.com
reedinstruments
www com
8
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Notes _________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
www.reedinstruments.com
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