Data Logging
Light Meter
R8100SD
Instruction
Manual
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Table of Contents
Introduction ................................................................................................ 3
Product Quality ........................................................................................... 3
Safety ......................................................................................................... 3
Features ..................................................................................................... 4
Included ..................................................................................................... 4
Specications ......................................................................................... 4-5
Instrument Description ............................................................................... 6
Display Description .................................................................................... 7
Operating Instructions ........................................................................... 8-10
Power ON/OFF ..................................................................................... 8
Selecting Measurement Modes ........................................................... 8
Light Measurement .............................................................................. 8
Changing the Light Meter unit of Measure .......................................... 9
Zero Adjustment .................................................................................. 9
Type K/J Thermocouple Measurement Mode ...................................... 9
Data Hold ........................................................................................... 10
Recording Maximum and Minimum Readings ................................... 10
Backlight ............................................................................................ 10
Setup Mode ........................................................................................ 11-14
Setting the Time and Date (dAtE) ....................................................... 11
Setting the Data Logging Sampling Rate (SP-t) ................................. 12
Enabling/Disabling Auto Power Off (PoFF) ........................................ 12
Enabling/Disabling the Beeper (bEEP) ............................................... 12
Setting Data Decimal Format (dEC) ..............................................12-13
Formatting the SD Card (Sd F) .......................................................... 13
Selecting the Temperature Unit of Measure (t-CF) ............................ 13
Selecting Thermocouple Type (tYPE) ................................................. 13
Verify Set Time, Date and Sampling Rate .......................................... 14
Data Logging ....................................................................................... 14-16
Data Recording Modes ...................................................................... 14
Manual Data Logging Mode ............................................................... 14
continued...
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Automatic Data Logging Mode .......................................................... 15
Transferring Data from the SD Memory Card to a Computer .......... 15-16
Data Stream Output ................................................................................. 16
3.5mm Terminal to RS-232 Serial Connection ................................... 16
System Reset ........................................................................................... 17
Battery Replacement ............................................................................... 17
Applications ............................................................................................. 17
Accessories and Replacement Parts ....................................................... 18
Frequently Asked Questions (FAQ's) ..................................................18-19
Product Care ............................................................................................ 19
Product Warranty ..................................................................................... 20
Product Disposal and Recycling .............................................................. 20
Product Support ...................................................................................... 20
Introduction
Thank you for purchasing your REED R8100SD Data Logging 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
specications. If a certicate of calibration is required please contact the
nearest authorized REED distributor or authorized Service Center. Please
note an additional fee for this service will apply.
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.
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Features
• Measures ambient light levels in Foot Candles or Lux
•
Photo diode and colour correction lters meet C.I.E. spectrum specications
• Contact temperature measurement with a type J/K thermocouple option
• Temperature is measured in °C or °F
• Real time data logger with integrated SD memory card
• User selectable sampling rate from 1 to 3600 seconds
• Easy-to-read backlit LCD display
• Data hold and Min/Max functions
• Tripod mount for long-term monitoring
• Low battery indicator and auto shut off
Included
• Detachable Sensor
• Sensor Cover
• Soft Carrying Case
• Batteries
Specifications
Measuring Ranges: Lux: 2,000, 20,000, 100,000
Fc: 200, 2,000, 10,000
Type K Temperature: -148.0 to 2,372.0°F
(-100.0 to 1,300°C)
Type J Temperature: -148.0 to 2,192.0°F
(-100.0 to 1,200°C)
Accuracy: Lux: ±(4% + 2 Lux)
Fc: <2,000: ±(4% rdg.+ 2 Fc)
2,000-10,000: ±(4% rdg.+ 20 Fc)
Temp: ≥-58°F (-50°C) ±(0.4% + 1°F (0.5°C))
≤-58°F (-50°C) ±(0.4% + 1.8°F (1°C))
Resolution: Lux: 1, 10, 100
Fc: 0.1, 1, 10
Temp: 0.1°F (0.1°C)
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Response Time: <1 second
Sensor Type: Photo diode & color correction lter
Autoranging: Yes
Display: 5-digit LCD
Backlit Display: Yes
Data Hold: Yes
Min: Yes
Max: Yes
Auto Zero: Yes
Overrange Indicator: Yes
Datalogging Capabilities: Yes
Real-Time Clock and
Date Stamp: Yes
Sampling Rate: Yes (1, 2, 5, 10, 30, 60, 120, 300,
600, 1800, 3600s)
External Memory: Yes, expandable up to 16GB
with SD card (optional)
Auto Shut-off: Yes (after 10 minutes/off)
Kick Stand: Yes
Tripod Mountable: Yes
Low Battery Indicator: Yes
Power Supply: 6 x AA batteries or AC Adapter (optional)
Data Output: Yes (RS-232)
Battery Life: Sampling Time Dependent
Product Certications: CE
Operating Temperature: 32 to 122°F (0 to 50°C)
Storage Temperature: 14 to 140°F (-10 to 60°C)
Operating Humidity Range: 10 to 80%
Dimensions: 7 x 2.7 x 1.9" (117 x 68 x 45mm)
Weight: 17.3oz (489g)
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Instrument Description
5
Light Meter
POWER
HOLD
2
3
ZERO
TIME
SD Series Data Logger
FUNCTIONUNIT
LOGSET
ENTER
R8100SD
6
E
C
R
7
8
9
18
14
15
16
11
12
13
19
20
21
4
10
1. POWER/Backlight/ESC Button
2. Up/UNIT Button
3. TIME/SET Button
4. Type K/J Thermocouple
Input Jack
5. LCD Display
6. HOLD Button
7. REC Button
8. Down/FUNCTION Button
9. ENTER/LOG Button
10. Light Sensor Input Socket
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11. RS232 Output Jack
12. Reset Pin
13. Power Adapter Input
14. Tripod Mounting Screw
15. Battery Cover
16. Kickstand
17. SD Card Slot
18. Light Sensor Cover
19. Light Sensor
20. Light Sensor Handle
21. Light Sensor Plug
6
Display Description
3
Ft-cd
LUX
6
K
J
1. Units of Measure
2. Date & Time Values/Temperature Measurement Reading
3. Date/Time Stamp
4. Temperature Unit of Measure
5. Measurement Reading Indicator
6. Maximum and Minimum Indicators
7. Record Mode Indicator
8. Data Hold Indicator
9. Low Battery Indicator
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Operating Instructions
Power ON/OFF
To turn the meter on or off, press and hold the POWER button for 2 seconds.
Note: This meter can be powered by either six (6) "AA" batteries or AC
adapter (sold separately).
Selecting Measurement Modes
The R8100SD offers 2 types of measurement modes to choose from:
• Light Meter
• Type K/J Thermometer
1. When the meter is on, press and hold the FUNCTION button to
toggle between "LiGHT" for light meter and "tP" for Type K/J
Thermometer measurement modes of operation.
2. Release the FUNCTION button to conrm selection.
Light Measurement
1. When the meter is off, plug the probe into the probe input socket,
then power on the meter by pressing the POWER button.
2. Select the "LIgHt" measurement mode (see Selecting Measurement
Modes for details).
3. Hold the probe handle and face the probe head against the
measuring light source.
4. The display will show the light measurement value as shown below.
LUX
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Changing the Light Meter unit of Measure
1. Press and hold the UNIT button, while in the Light Meter
measurement mode.
2. The LCD display will toggle between the units LUX and Ft-cd.
3. Release the UNIT button to select the displayed unit.
4. The selected unit will be saved as the new default.
Zero Adjustment
1. While taking a light measurement, completely cover the light sensor.
2. If the LCD display does not show value of zero, press the and
buttons simultaneously until the LCD display shows a zero value.
Type K/J Thermocouple Measurement Mode
1. Select the "tP" function (see Selecting Measurement Modes
for details).
2. Plug the optional Type K or J Thermocouple Probe into the Type K/J
thermocouple input jack.
3. The screen will display a "K", conrming that is congured by default
to a Type K thermocouple probe. The measured temperature will now
be displayed on the display screen. As shown below.
Note: If using a type J thermocouple probe, see Selecting Measurement
Modes for details.
K
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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 HOLD button again to resume normal operation.
Note: When the Data Hold feature is active all buttons except the POWER
button are disabled.
Recording Maximum and Minimum Readings
1. Press the REC button to enter recording mode as indicated by
"REC" on the LCD. The meter will now begin recording maximum
and minimum readings.
2. While in recording mode;
A) Press the REC button once and the maximum value will appear
on the display as indicated by "REC MAX".
B) Press the REC button again and the minimum value will appear
on the display as indicated by "REC MIN".
C) To exit recording mode and resume normal operation, press and
hold the REC button for two seconds.
When in recording mode the POWER button is disabled
and the meter cannot be turned off.
Backlight
After powering the meter ON, the LCD Backlight will turn on automatically.
Press the BACKLIGHT button to turn the LCD Backlight on or off.
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Setup Mode
1. Press and hold the SET button for 2 seconds to enter Setup Mode.
2. Press the SET button continuously to scroll through the
following parameters.
Parameter Description
dAtE Set the time and date
SP-t Set the data logging sampling rate
PoFF Enable or disable the auto-power off function
bEEP Turn the beeper on or off
dEC Set the decimal format (USA (20.00) or European (20,00))
Sd F Format the SD memory card
t-CF Select the temperature unit of measure (°C or °F)
tYPE Select thermocouple type (K or J)
3. Once the appropriate parameter has been selected, follow the
instructions below.
Note: The meter automatically exit out of the Setup mode if no key is
pressed within 7 seconds.
Setting the Time and Date (dAtE)
1. Press the ENTER button when "dAtE" appears on the LCD.
2. Press the and buttons to adjust the year as indicated by "YY."
3. Press the ENTER button to conrm selection.
4. Repeat steps 2 and 3 for month, day, hour, minute and seconds as
indicated by (mm/dd/h/m/s).
5. After each value has been selected and conrmed, the meter will
automatically skip to the next parameter.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation. The internal clock will keep accurate
time when the meter is powered off. When new batteries are installed the
clock will have to be reset.
continued...
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Setting the Data Logging Sampling Rate (SP-t)
Follow steps 1 and 2 when "SP-t" appears on the LCD.
1. Press the
2, 5, 10, 30, 60, 120, 300, 600, 1800, and 3600 seconds.
2. Press the ENTER button to conrm selection and skip to the
next parameter.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation.
and buttons to adjust the sampling rate between 0, 1,
Enabling/Disabling Auto Power Off (PoFF)
Follow steps 1 and 2 when "PoFF" appears on the LCD.
1. Press the
(disabled). With the Auto Power OFF feature enabled, the meter will
automatically switch OFF after 10 minutes of inactivity to preserve
battery life.
2. Press the ENTER button to conrm selection and skip to the
next parameter.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation.
and buttons to select between YES (enabled) or NO
Enabling/Disabling the Beeper (bEEP)
Follow steps 1 and 2 when "bEEP" appears on the LCD.
1. Press the
OFF (disabled).
2. Press the ENTER button to conrm selection and skip to
next parameter.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation.
and buttons to select between ON (enabled) or
Setting Data Decimal Format (dEC)
Numeric formats vary in different countries. By default the meter is set to
bASIC mode where a decimal point is used to separate units, (i.e. 20.00).
The European format uses a comma (i.e. 20,00) to separate units. To
change this setting, follow steps 1 and 2 when "dEC" appears on the LCD.
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1. Press the and buttons to select between bASIC and Euro.
2. Press the ENTER button to conrm selection and skip to
next parameter.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation.
Formatting the SD Card (Sd F)
Follow steps 1 through 5 when "Sd F" appears on the LCD.
1. Press the
"NO" to abort.
2. Press the ENTER button to conrm selection.
3. Press the ENTER button again to re-conrm.
4. The meter will format the SD card while ashing "For-" and
automatically return to the Setup menu when formatting is complete.
5. Press the POWER button to exit the Setup mode and resume
normal operation.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation. It is recommended that new SD
cards should be formatted prior to rst use. If the formatting process fails
or if no card is inserted, the meter will display "Sd -E-".
and buttons to select "YES" to format the card. Select
Selecting the Temperature Unit of Measure (t-CF)
Follow steps 1 through 3 when "t-CF" appears on the LCD.
1. Press the
2. Press the ENTER button to conrm selection.
3. Press the SET button to save the selected sampling rate and jump to
next parameter.
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation.
and buttons to select between °C and °F.
Selecting Thermocouple Type (tYPE)
Follow steps 1 and 2 when "tYPE" appears on the LCD.
1. Press the
2.
Press the
Note: At any time, you can press the POWER button to exit the Setup
mode and resume normal operation.
and buttons to select between K and J.
ENTER
button to conrm selection and skip to next parameter.
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Verify Set Time, Date and Sampling Rate
During normal operation press the TIME button to display the year,
month, day, hour, minutes and selected sampling rate.
Data Logging
Data Recording Modes
Manual Data Logging: Press the LOG button to manually log up to
99 readings on a SD memory card (see Manual Data Logging Mode for
full setup instructions).
Automatic Data Logging: Setup the meter parameters in order to
automatically log data on a SD memory card. The number of data points
is limited by the size of the memory card.
Note: It is recommended to use a class 4 SDHC memory card between 1
and 16Gb. Insert the SD memory card in the slot at the bottom of the meter.
The card must be inserted with the label side facing the rear of the meter.
Manual Data Logging Mode
In manual mode, the LOG button is pressed to manually log a reading on
the inserted SD card at any time. In order to setup the meter for manual
data logging, follow steps 1 through 5 below.
1. Set the data logging sampling rate to "0" seconds (see Setting the
Data Logging Sampling Rate for details).
2. Press and hold the LOG button for 2 seconds at which point the
lower portion of the LCD will display P-X (X = memory position
number between 1 and 99).
3. Press the
positions in which to record.
4. Press the LOG button again to save a reading to memory. "REC" will
ash each time a data point is stored.
Note: If a card is not inserted or the card is defective, the meter will ash
"Sd -E-". In this case, power the meter OFF and try again with another SD
memory card or verify that the card is correctly inserted.
5. To exit manual data logging mode, press and hold the LOG button
2 seconds to resume normal operation.
and buttons to select one of the 99 data memory
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Automatic Data Logging Mode
In automatic mode the desired data logging sampling rate is set to 1, 2,
5, 10, 30, 60, 120, 300, 600, 1800 or 3600 seconds prior to recording.
In order to setup the meter for automatic data logging, follow steps 1
through 4 below.
1. To begin a data logging session press and hold the LOG button for
2 seconds. The meter will scan for a SD memory card.
Note: If a card is not inserted or the card is defective, the meter will ash
"Sd -E-" indenitely. In this case, power the meter OFF and try again with
another SD memory card or verify that the SD card is correctly inserted.
2. While in a data logging session, the "LoG" icon will appear on the
LCD, while the REC icon will continuously ash.
3. To pause the data logging session press the LOG button and REC
will stop ashing. To resume press the LOG button again.
4. To end the current data logging session press and hold the LOG
button for 2 seconds.
Transferring Data from the SD Memory Card to a Computer
1. While the meter is powered Off remove the SD memory card from the
SD card slot.
2. Insert the SD memory card into the computer.
3. Open the le(s) with Excel. See sample below:
Place Date Time Value Unit
1 19-07-10 10:39:08 886 LUX
2 19-07-10 10:39:09 886 LUX
3 19-07-10 10:39:11 169 LUX
4 19-07-10 10:39:13 1036 LUX
5 19-07-10 10:39:15 999 LUX
6 19-07-10 10:39:17 25 LUX
7 19-07-10 10:39:19 991 LUX
8 19-07-10 10:39:21 960 LUX
9 19-07-10 10:39:23 969 LUX
10 19-07-10 10:39:25 30 LUX
11 19-07-10 10:39:27 999 LUX
12 19-07-10 10:39:29 971 LUX
13 19-07-10 10:39:31 985 LUX
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The raw data can be used to create a graph in Excel. See sample below:
RS-232 Mono Jack
Pin 2 (RX)
Pin 4 (DTX)
Sleeve
Tip
41010100000501 = Upper Value, 301 LUX
4
1200
1000
800
600
400
200
0
10:39:08 10:39:09 10:39:11 10:39:13 10:39:15 10:39:17 10:39:19 10:39:21 10:39:23 10:39:25 10:39:27 10:39:29 10:39:31
19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10 19-07-10
1 2 3 4 5 6 7 8 9 10 11 12 13
Value
Unit
Data Stream Output
Using Terminal application, a data stream can be viewed from the RS-232
output, connect RS-232/USB cable between the product and terminal/PC
and use the following setting to view the data stream.
Terminal Settings:
• Bits per
second: 9600
• Data bits: 8
• Parity: None
• Stop bits: 1
3.5mm Terminal to RS-232 Serial Connection
Reading
Decimal Place 0-3
Positive (+) = 0,
Negative (-) = 1
°C= 01, °F = 02,
LUX = 15, Ft-cd= 16
1 = Upper display value,
2 = Lower display value
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System Reset
If the meter becomes unresponsive or if the display freezes, the Reset pin
can be used to reset the instrument.
1. Use a paper clip or any similar small object to press the Reset pin.
2. After pressing the Reset pin, power the meter back up by holding the
POWER button for 2 seconds.
3. If resetting the meter does not resolve the issue, please return the
meter to the nearest authorized REED distributor or authorized
Service Center for repair.
Battery Replacement
When the low battery icon appears on the LCD, the batteries must
be replaced.
1. Remove the two (2) Phillips screws on the back of the meter directly
located above the top of the kickstand.
2. Remove the battery cover.
3. Replace 6 x "AA" batteries.
4. Secure the battery cover with the two (2) Phillips screws.
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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Accessories and Replacement Parts
R8100SD-PROBE Replacement Probe for R8100SD
R2920 Surface Thermocouple Probe
R2930 Right Angle Thermocouple Probe
R2940 Air/Gas Thermocouple Probe
R2950 Immersion Thermocouple Probe
R2960 Needle Tip Thermocouple Probe
TP-01 Beaded Thermocouple
R1500 Tripod
RSD-ADP-NA Power Supply, 110V
RSD-ADP-EU Power Supply, 220V
CA-05A Soft Carrying Case
R8888 Deluxe Hard Carrying Case
SD-4GB 4GB Class 4 SDHC Memory Card
RSD-16GB 16GB Micro SD Memory Card w/ Adapter
Don't see your part listed here? For a complete list of all accessories and
replacement parts visit your product page on www.REEDInstruments.com.
Frequently Asked Questions (FAQ's)
I cannot turn off my meter, do you know why?
Often times, the meter cannot be turned off because it is in recording mode
("REC" mode). Make sure to exit that function by holding down the REC
button before attempting to turn the meter off.
Can I set an alarm to go off at a specific temperature?
The meter does not have an alarm function.
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How long can I record for?
Battery life will depend on a number of factors:
• Quality of Battery
• Whether the beeper is ON or OFF
• Whether the backlight is ON or OFF
• Environmental Conditions during data logging
As a reference, using alkaline batteries with both the backlight and beeper
on while automatic data logging at a 2 second sampling rate; the batteries
lasted approx. 14 hours.
Does the R8100SD have a LED light mode?
Unfortunately R8100SD does not have an LED light mode capability.
Kindly nd the formula for LED lights for the REED R8100SD.
The reading value of the R8100SD multiplied by coefcient for LED light:
Coefcient:
LED white daylight: 0.99
LED RED light: 0.516
LED AMBER (YELLOW) light: 0.815
LED GREEN light: 1.216
LED BLUE light: 1.475
LED PURPLE light: 1.148
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.
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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 phone
at 1-877-849-2127 or by email at info@REEDInstruments.com to discuss
the claim and determine the appropriate steps to process the warranty.
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 info@REEDInstruments.com.
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.
20
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