Reed Instruments R8140 User manual

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LED Light Meter
Instruction
Manual
R8140
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Table of Contents
Introduction ................................................................................................ 3
Product Quality........................................................................................... 3
Safety ......................................................................................................... 3
Features...................................................................................................... 3
Included...................................................................................................... 3
Specications............................................................................................. 4
Instrument Description ............................................................................... 5
Display Description .................................................................................... 5
Application Notes and User Tips................................................................ 6
Protective Cap...................................................................................... 6
Adjustable Sensor ................................................................................ 6
Operating Instructions.............................................................................6-8
Power On/Off (Automatic Zero Adjustment) .......................................... 6
Unit of Measure Selection...................................................................... 7
Measurement Range Selection.............................................................. 7
Data Hold ............................................................................................... 7
MIN/MAX ............................................................................................... 7
Auto Power Off ...................................................................................... 8
Backlight ................................................................................................ 8
Selecting the Appropriate Light Setting..............................................8-9
Characteristics of Sensor Spectrum Response ......................................... 9
Battery Replacement.................................................................................. 9
Applications.............................................................................................. 10
Product Care ............................................................................................ 10
Product Warranty ..................................................................................... 10
Product Disposal and Recycling .............................................................. 11
Product Support....................................................................................... 11
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Introduction
Thank you for purchasing your REED R8140 LED Light Meter. Please
read the following instructions carefully before using your instrument. By
following the steps outlined in this manual your meter will provide years of
reliable service.
Product Quality
This product has been manufactured in an ISO9001 facility and has been
calibrated during the manufacturing process to meet the stated product
specications.
Safety
Never attempt to repair or modify your instrument. Dismantling your
product, other than for the purpose of replacing batteries, may cause
damage that will not be covered under the manufacturer's warranty.
Servicing should only be provided by an authorized service center.
Features
• Measuresambientlightlevelsofwhite,red,yellow,greenandblueLED
light and visible light in Foot-candles or Lux
• Large,backlitLCDdisplay
• Detachableandrotatablelightsensor
• Min/Maxanddataholdfunctions
• Cosineandcolorcorrectedmeasurements
• Useradjustableparameterforspecializedlightsources
• Lowbatteryindicatorandautoshutoff
Included
• DetachableSensor
• SensorCover
• HardCarryingCase
• Batteries
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Specifications
Measuring Range(s): Lux: 0 to 199,900
Fc: 0 to 19,990
Accuracy:
Incandescent Light Source: ±(3% rdg.+ 5 dgt )
Other Visible Light Source: ±8% rdg.
Resolution: Lux: 0.1
Fc: 0.01
Response Time: 500mS
Sensor Type: Silicon photodiode with color correction
lter and cosine correction
Light Types:
White LED, Yellow LED, Green LED, Red
LED, Blue LED, Warm White Fluorescent,
Cold White Fluorescent Lamp, Incandescent
Angle deviation from
cosine characteristics: 10°± 1%
30°± 2%
60°± 5%
80°± 20%
Autoranging: Yes (Auto and Manual)
Display: 6-digit LCD
Backlit Display: Yes
DataHold: Yes
Min: Yes
Max: Yes
Overrange Indicator: Yes
Auto Shut-off: Yes (after 30 minutes)
Low Battery Indicator: Yes
Power Supply: 2 x AA Batteries
Battery Life: Approx. 80 hours
ProductCertications: CE,RoHS
Operating Temperature: 32 to 104°F (0 to 40°C)
Storage Temperature: 14 to 122°F (-10 to 50°C)
OperatingHumidityRange: 0to80%
Dimensions: 6.7 x 2.5 x 1.5" (169 x 63 x 37mm)
Weight: 7.4oz (210g)
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Instrument Description
1. Protective Cap
2. Light Sensor
3. LCD Display
4. Power/BacklightButton
5. HOLDButton
Display Description
6. MIN/MAX/UPButton
7. RangeSelection/DownButton
8. Set Button
9. Fc/LxSelectorButton
10. Battery Cover
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Application Notes and User Tips
1. Protective Cap
The protective cap used to protect the light
sensor from damage and creates a complete
dark environment for the meter to self-calibrate
on start-up. When the meter is not in use,
please keep the protective cap in place over the
light sensor. This will prolong the life of
the sensor.
2. Adjustable Sensor
Depending on the application, the
lightsensorcanbeadjustedor
removed from the meter. For
maximum accuracy, allow the light
under test to fall directly on the
sensor as perpendicular as possible
to avoid any false readings.
Note: Do not expose this meter
to areas of high temperature and
humidity.
Operating Instructions
Power On/Off (Automatic Zero Adjustment)
1. Push the Power Button to turn the meter on. To turn the meter off, press
and hold the power button during the countdown cycle from 3 to 0.
2. When turning the meter on it will perform an automatic zero
adjustmentasindicatedby"CAP-"ontheLCDdisplay.
Note: Keep the protective cap on the sensor during the automatic zero
adjustment.If"ERR1"appears,checktheprotectivecaptoinsureitis
properly secured.
3. After"CAL-"appears,themeterautomaticallyadjuststozero.
4. Whenautomaticzeroadjustmentiscompleted,"CAL-"disappears
and "0.0" will now appear on the LCD display, conrming that the
cap can be removed to start testing.
continued...
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Unit of Measure Selection
Press the fc/lx button to toggle between Foot Candles and Lux units of
measurement. Refer to "Selecting the Appropriate Light Setting" section
for information on the meter's pre-set correction settings according to the
light source under test.
Note: 1fc=10.76lx
Measurement Range Selection
Press the RANGE button to select the preferred measuring range. The
availablerangesare:AUTO,200,2000,20000,200000lx/AUTO,20,200,
2000, 20000 fc.
Data Hold
1. While taking a measurement, press the HOLD button to freeze the
current readings on the display.
2. Whileinthismodea"HOLD"symbolwillappear.
3. Press the button again to resume normal operation.
MIN/MAX
1. Press the MIN/MAXbuttontoentertheMIN/MAXfunction.
2. The"MAX"indicatorwillappearonthedisplay.
3. Under this function the maximum light value is displayed and
updated when a new maximum data value has been taken.
4. Press the MIN/MAX button again and the "MIN" indicator will appear
on the display.
5. Under this function the minimum light value is displayed and updated
when a new minimum data value has been taken.
6. Press the MIN/MAXbuttonathirdtimeandboththe"MIN&MAX"
indicators will blink continuously.
7. Under this function the maximum & minimum values will continue to
be updated in the memory while displaying the current light value.
8. ToexittheMIN/MAXfunction,pressandholdtheMIN/MAX button
for three seconds.
continued...
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Auto Power Off
1. To preserve battery life, the meter is programmed to turn itself off
after 30 minutes of inactivity.
2. To turn this function off, press and hold the HOLD button while
powering on the meter.
3. Release both buttons simultaneously.
4. The Auto Power Off indicator will not appear on the display at start
up, conrming this feature is now disabled.
5. If the meter is turned off then back on, the "Auto Power Off" feature
will be enabled again.
Backlight
Press the Backlight Button to turn the LCD Backlight on and off. The
backlight will automatically turn off after 30 seconds in order to preserve
battery power.
Selecting the Appropriate Light Setting
The meter has been pre-loaded with 9 light source selections (L0-L8) each
having its own unique correction factor. See the light sources listed below.
The correction factor multipliers for L0-L7 are xed to the specic light
sources listed, whereas, L8 is a customizable location which allows you
to set your own correction factor if a high precision light meter with "V( )"
<3% is available.
In order to select the appropriate setting, press the button and press
the and buttons to toggle through the list of light sources. When the
appropriate light source has been selected, press the button again to
conrm your selection and resume normal operation.
Light Sources:
L0: Standard incandescent light source
L1: LED white daylight (5000K)
L2: LED AMBER (YELLOW) light (3000K)
L3: LED GREEN light
L4: LED RED light
L5: LED BLUE light
L6: Warm White Fluorescent Lamp (4000K)
continued...
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L7: Cold White Fluorescent Lamp (6500K)
L8: User setup mode
Characteristics of Sensor Spectrum Response
Battery Replacement
When the low battery icon appears on the LCD display, you will need to
replace the batteries. In order to replace the batteries, proceed with the
following steps.
1. Turn off the meter.
2. Remove the Phillips-head screw located on the battery compartment.
3. Remove the battery cover.
4. Replace the 2 x "AA" batteries.
5. Reinstall the battery cover.
Applications
• OSHAworkenvironmentcompliance
• Cinematographyandphotographyapplications
• Museumexhibits
• Lightingsysteminstallation
• Environmentalmonitoring
• Interiordesignprojects
• Industrialapplications
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Product Care
To keep your instrument in good working order we recommend the following:
• Storeyourproductinaclean,dryplace.
• Changethebatteryasneeded.
• Ifyourinstrumentisn'tbeingusedforaperiodofonemonthorlonger
please remove the battery.
• Cleanyourproductandaccessorieswithbiodegradablecleaner.Donot
spray the cleaner directly on the instrument. Use on external parts only.
Product Warranty
REED Instruments guarantees this instrument to be free of defects in
material or workmanship for a period of one (1) year from date of shipment.
During the warranty period, REED Instruments will repair or replace, at no
charge, products or parts of a product that proves to be defective because
of improper material or workmanship, under normal use and maintenance.
REED Instruments total liability is limited to repair or replacement of the
product. REED Instruments shall not be liable for damages to goods,
property, or persons due to improper use or through attempts to utilize
the instrument under conditions which exceed the designed capabilities.
In order to begin the warranty service process, please contact us by email
at 1-877-849-2127 or [email protected] to discuss the claim and
determine the appropriate steps to process the warranty.
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Product Disposal and Recycling
Please follow local laws and regulations when disposing or recycling your
instrument. Your product contains electronic components and must be
disposed of separately from standard waste products.
Product Support
If you have any questions on your product, please contact your authorized
REED distributor or REED Instruments Customer Service by phone at
1-877-849-2127 or by email at [email protected].
Please visit www.REEDINSTRUMENTS.com for the most
up-to-date manuals, datasheets, product guides and software.
Product specifications subject to change without notice.
All rights reserved. Any unauthorized copying or reproduction of
this manual is strictly prohibited without prior written permission
from REED Instruments.
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