Dwyer LUX-01 User Manual
Model LUX-01 Digital Light Meter
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Light/Lux Meter
LUX-01
Specifications - Installation and Operating Instructions
Bulletin TE-LUX-01
Model LUX-01 Digital Light Meter is able to measure the intensity of
fluorescent, metal halide, high-pressure sodium, and incandescent light
sources. This meter shows readings on a 3-1/2 digit LCD and can record
measurement up to 200,000 lux and up to 20,000 foot-candles. The
silicon photodiode sensor allows for use in high temperatures and has a
strong angular correction for a highly accurate reading. Model LUX-01
also includes a protective cap for the sensor, ensuring that the meter is
always zero calibrated. Applications include HVAC, medical facilities,
photography, and cinematography.
PRODUCT OVERVIEW
SPECIFICATIONS:
Range: Up to 200,000 lux; up to 20,000 foot-candles.
Accuracy: ±3% of reading (Calibrated to standard incandescent lamp
4681°F (2583°C)) or ±6% other visible light source.
Display: 3-1/2 digit LCD.
Resolution: 1.0 lux; 1.0 foot-candle.
Sensor: Silicon photodiode and filter.
Angle Deviation from Cosine Characteristics: 10° ±0.5%, 30° ±2%,
50° ±3%, 60° ±6%, 80° ±25%.
Temperature Limits:
Operating: 14 to 122°F (-10 to 50°C);
Storage: 14 to 122°F (-10 to 50°C).
Power Requirements: 9 V carbon zinc battery, included, user
replaceable.
Battery Life: 200 hours.
Weight: 22.4 oz (635 g).
Agency Approvals: CE, RoHS.
1. LCD Screen 7. Photo Detector
2. Lux/FC button 8. Data Hold Button
3. Auto Range Button 9. Manual Range Button
4. Max/Min Button 10. Power Button
5. Zero Adjustment 11. Battery Compartment Cover
6. Light Sensor Cap
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: info@dwyermail.com
Figure 1
Phone: 219/879-8000 www.dwyer-inst.com
OPERATION
1. Press the power button to turn the power on.
2. Remove the cap of the light sensor and place the light sensor at the
spot where the meter can test the source of light. To obtain the best
result, aim the light source at the top of the light sensor ball plane at
a 0 degree angle. See Figure 2 for an example.
igure 2
F
After the reading becomes stable, the result will then be displayed on
the LCD.
3. After testing, place the cover of the light sensor back to its former
position and press the power button again to turn the power off.
Note: When the meter is not in use, keep the cap of the light sensor in
its place to avoid wearing out the photodiode sensor. If it is not in use for
an extended period of time, remove the batteries and do not keep in a
place of high temperature or humidity.
Changing Unit
To change the unit, press the Lux/Fc button to toggle between the units.
Data Hold
To keep the reading value on the LCD permanently after it has been
recorded, press the Data Hold button. The locked screen can be
released by pressing the Data Hold button again.
Maximum/Minimum
To view the maximum or minimum recorded values, press the Max/Min
button. The maximum value will be shown on the first press of the button
and the minimum value will be shown on the second press. On the third
press, it will go back to the current reading.
RECOMMENDED LEVELS OF ILLUMINATION
Offices
Illuminance (Lux)
1500 to 750
750 to 300
300 to 100
75 to 30
Factories
Illuminance (Lux)
3000 to 1500
1500 to 750
750 to 300
300 to 150
75 to 30
Schools
Illuminance (Lux)
1500 to 300
750 to 200
300 to 75
75 to 30
10 to 2
MAINTENANCE/REPAIR
Upon final installation of the Model LUX-01, no routine maintenance is
required. The Model LUX-01 is not field serviceable and should be
returned if repair is needed. Field repair should not be attempted and
may void warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sale” in our catalog and on our
website. Contact customer service to receive a Return Goods
Authorization number before shipping the product back for repair. Be
sure to include a brief description of the problem plus any additional
application notes.
Place
Designing/drawings rooms
Conference rooms, computer rooms
Work rooms, corridors, stairways
Indoor emergency stairways
Place
Extremely precise visual work
Precise visual work
Regular visual work
Wrapping and packing
Indoor emergency stairways
Place
Drawing/drafting rooms, library
Classrooms, reading rooms, staff rooms,
gymnasiums
Lecture halls, assembly rooms, locker rooms,
corridors, stairways
Warehouses, emergency stairways
School passages
Range Function
This meter features auto and manual ranging options. To select the
decimal point position, press the Manual Range button until the decimal
point appears in the correct place. To let the meter select the decimal
point position, press the Auto Range button. The meter will base the
positioning on the value it is currently reading.
Zero Calibration
To zero calibrate the meter, place the light sensor cap over the sensor.
If any numbers appear on the LCD, press the Zero Adjustment button.
Note: If the light sensor cap is not attached when zero calibrating, the
meter will display “CAP” on the LCD.
BATTERY REPLACEMENT
When the battery symbol appears on the LCD, the battery needs to be
replaced. To change the battery, remove the cover to the battery
compartment and remove the battery currently in the instrument. Place
the new battery in and replace the cover.
©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 4/14 FR# R7-444164-00 Rev. 2
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: info@dwyermail.com
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