REED Instruments SD-1128-NIST User manual

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Model

SD-1128

Light/Temperature
Datalogger

Instruction
Manual

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Table of Contents

Features ............................................................................................ 3

Specications ................................................................................3-5

Instrument Description ..................................................................... 6

Operating Instructions .................................................................7-11

Function selection ..........................................................................7

Light Measurement ........................................................................ 7

Changing the Light Meter unit ........................................................ 7

Zero Adjustment ............................................................................ 7

Type K/J Thermometer measurement .........................................7-8

Data Hold ......................................................................................8

Data Record (Max., Min. reading) ................................................... 8

Backlight ON/OFF .......................................................................... 8

Datalogger ..................................................................................... 9

Auto Datalogger ............................................................................. 9

Manual Datalogger ....................................................................9-10

Checking the Time ....................................................................... 10

Check Sampling Time Information ................................................ 10

SD Card Data Structure ............................................................... 10

Data Transfer from SD card to Computer ..................................... 11

Advanced Settings ....................................................................11-13

Set Clock Time ............................................................................12

Setting the Decimal point on the SD Card .................................... 12

Auto power OFF management ..................................................... 12

Set Beeper Sound ON/OFF .........................................................12

Select the Thermometer to Type K or Type J ................................ 13

Select the Temperature unit to °C or °F ........................................ 13

Set sampling time ........................................................................ 13

SD memory card Format ............................................................. 13

PC Serial Interface .......................................................................... 14

System Reset ................................................................................. 15

Battery Replacement ...................................................................... 15

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Features

• Measures in LUX and Ft-cd

• Air temperature (°C, °F)

• Type K and Type J thermocouple thermometer

• Real time SD memory card datalogger with a built-in clock and

calendar

• Sampling time set from 1 second to 3600 seconds

• Meter can switch to a Manual Datalogging

• No extra software needed, just plug the SD card into the computer

and it downloads directly to EXCEL

• SD card capacity: 1 GB to 16 GB

• Easy to read LCD with backlight

• Auto power off or manual power off

• Data hold, record max. and min. reading

• High accuracy microcomputer circuit

• Power by UM3/AA (1.5 V) x 6 batteries

• USB/RS232 Computer interface

• Separated probe for easy measurements of multiple environments

• Automatic temperature compensation for the anemometer and type

K/J thermometer

Specifications

Circuit: Custom microprocessor LSI circuit
Display: 52mm x 38mm LCD with backlight
Light units: LUX or Ft-cd
Temperature units: (°C, °F)
Light Sensor: Photo diode & colour correction lter

designed to meet CIE standards

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Auto Sampling Time: 1, 2, 5, 10, 30, 60, 120, 300, 600, 1800,
3600 seconds

Memory Card: SD memory card, 1 GB to 16 GB
Sampling Time: Approx. 1 second
Data Output: USB/RS232 PC computer interface
Temperature Range: 0-50°C (0-122°F)
Resolution: 0.1°C/0.1°F
Accuracy: ± 0.8°C/1.5°F
Operating Temperature: 0-50°C (0-122°F)
Operating Humidity: Less than 85% R.H.
Power Supply: UM3/AA (1.5 V) x 6 batteries
Weight: 489g/1.08lb
Dimensions: 117 x 68 x 45mm (7 x 2.7 x 1.9”)
Includes: Light Sensor
Optional accessories: 2G SD Card (SD-2GB)

Type K thermocouple probe (TP-01)
USB cable (USB-01)
Power adapter (AP-9VA-110V)
Data Acquisition Software (SW-U801-WIN)
Tripod (BS-6)

Visit us at www.reedinstruments.com for more information on our optional
accessories, or e-mail us at [e-mail]

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Light Meter

Unit Range

Max. In-Range
Display

Resolution Accuracy

LUX 2,000 LUX 0 - 1,999 LUX 1 LUX

20,000 LUX 1,800 -

19,990 LUX

100,000 LUX 18,000 -

10 LUX

100 LUX

±(4% + 2dgt)

99,900 LUX

Ft-cd 200 Ft-cd 0 - 186.0 Ft-cd 0.1 Ft-cd

2,000 Ft-cd 167.0 -

1 Ft-cd ±(4% + 2Ft-cd)

1,860.0 Ft-cd

10,000 Ft-cd 1,670.0 - 9,290.7

10 Ft-cd ±(4% + 20Ft-cd)

Ft-cd

Type K/J thermometer

Sensor Type Resolution Range Accuracy

0.1°C

Type K

0.1°F

0.1°C

Type J

0.1°F

-50.0 to 1300.0°C ± (0.4% + 0.5°C)

-50.1 to -100.0°C ± (0.4% + 1°C)

-58.0 to 2372.0°F ± (0.4% + 1°F)

-58.1 to -148.0°F ± (0.4% + 1.8°F)

-50.0 to 1200.0°C ± (0.4% + 0.5°C)

-50.1 to -100.0°C ± (0.4% + 1°C)

-58.0 to 2192.0°F ± (0.4% + 1°F)

-58.1 to -148.0°F ± (0.4 % + 1.8°F)

Above specication tests under the environment RF Field Strength
less than 3 V/M & frequency less than 30 MHz only

Instrument Description

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1. Display

2. Power, ESC, & Backlight Button

3. Hold, Function, & Next Button

4. REC, Enter Button

5. SET, Down, & Time Check
Button

6. Logger, Up, Sampling Time
Check & Zero Button

7. Probe input socket

8. Type K/J thermometer socket

9. SD card slot

10. USB/RS232 Output

11. Reset Button

Operating Instructions

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12. AC/DC 9V Power Adapter Input
Socket

13. Battery Compartment/Cover

14. Battery Cover Screws

15. Stand

16. Tripod Fix Nut

17. Probe Plug

18. Probe Handle

19. Light Sensor

20. Light Sensor Cover

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Function selection

1) Turn on the meter by pressing the Power Button. To turn the meter
off, hold the Power Button for over 2 seconds.

2) The meter has 2 measuring functions to choose from: Light Meter
or Type K/J Thermometer. When the meter is on, press and hold the
Function Button. The display will ash “LIgHt”, for Light measure­ment, and “tP” for Type K/J Thermometer measurement. Release
the Function Button to choose the displayed function.

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 “ function (see Function Select).

3) Hold the Probe Handle and face the Probe Head against the mea­suring light source. The Display will show the light measurement
value.

Changing the Light Meter unit

To change the Light Meter unit, press and hold the Unit Button, while in
the Light Meter Function. The display will ash the units LUX and Ft-cd.
Release the Unit Button to select the displayed unit. The selected unit will
be saved as the default.

Zero Adjustment

While taking a Light Measurement, completely cover the light sensor. If
the Display does not show value of zero, press and hold the Logger But­ton until the Display shows a zero value.

Type K/J Thermometer measurement

1) Select the “tP” function (see Function Select)

2) Plug the optional Type K or J Thermocouple Probe into the Type
K/J Probe Input Socket.

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3) The screen will display a “K”, meaning it is congured for a Type
K thermometer probe. The measured temperature will now be dis­played on the display screen. To change the meter to accept a Type
J Probe, please see the Advanced Settings section.

Data Hold

While taking a measurement, press the Hold Button once and the mea­sured value will hold on the screen, and a HOLD symbol will appear.
Press the Hold Button once again will release the data hold function.

Data Record (Max., Min. reading)

The data record function records the maximum and minimum readings.
Press the REC Button once to start the Data Record function and a “REC”
symbol will appear on the display. With the “REC” symbol on the display:

1) Press the REC Button once, and a ”REC. MAX.” symbol along with
the maximum value will appear on the display. To delete the maxi­mum value, press the Hold Button once and the display will show
a “REC.” symbol only and execute the memory function continu­ously.

2) Press the REC Button again, and a “REC. MIN.” symbol along
with the minimum value will appear on the display. To delete the
minimum value, press the Hold Button once, and the display will
show a “REC.” symbol only and execute the memory function
continuously.

3) To exit the memory record function, press the REC button for 2
seconds. The display will revert to the current reading.

Backlight ON/OFF

After powering the meter ON, the LCD Backlight will turn on automati­cally. While taking measurements, press the Backlight Button and the LCD
Backlight will turn off. Press the Backlight Button once again to turn the
LCD Backlight back ON.

Datalogger

Preparation Before Executing the Datalogger Function:

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1) Insert the optional SD card into the SD card socket.

2) Before you use an SD card with this meter for the rst time, it is
recommend to format the SD card. See Advanced Settings section
of this manual for instructions.

3) If this is the rst time the meter is used you need to adjust the
clock. See Advanced Settings section of this manual for instruc­tions.

4) Now you need to set the decimal format. The numerical data struc­ture downloaded to the SD card is defaulted used the “.” as the
decimal, for example “20.6” “1000.53”. But in certain countries the
“,” is used as the decimal point, for example “20, 6” “1000,53”. See
Advanced Settings section of this manual for instructions on how
to change the Decimal Character.

Auto Datalogger (Set sampling time ≥1 second)

1) Start Datalogging; press the REC Button, and the “REC” symbol
will appear on the LCD screen, then press the Logger Button, the
“REC” symbol will ash while the measuring data and time informa­tion is being saved in memory. To set the sampling time, and to
toggle the beeper sound on or off, refer to the Advanced Settings
section of this manual.

2) Pause the Datalogging; while Datalogging, if press the Logger But­ton once. While paused, the “REC” symbol will stop ashing. Press
the Logger Button again to resume Datalogging, and the “REC”
symbol will begin to ash again.

3) Stop Datalogging; while the Datalogger function is paused, press
the REC Button for 2 seconds. The “REC” symbol will disappear
indicating the Datalogging function has stopped.

Manual Datalogger (Set sampling time = 0 seconds)

1) Set sampling time is to 0 second; Press the REC Button, and the
“REC” symbol will appear on the LCD screen.
Press the Logger Button, and the “REC” symbol will ash once and
one Beep will sound, at the same time the measuring data along

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the time information will be saved in memory. The lower Display will
show the Position (record) number, which is saved as well.

2) To Change the Position Number; press the Down Button and the
lower position number will ash on the display. Press the Up or
Down Buttons to set the Position Number (1 to 99) to help identify
the measurement location. The lower Display will show P x (x = 1 to

99). After the position number is selected, press the Enter Button to
conrm.

3) Stop Datalogging; press the REC Button for 2 seconds, and the
“REC” symbol will disappear indicating the Datalogging function
has stopped.

Checking the Time

During normal functions (not Datalogging), press the Time Check Button
and the lower LCD display will show the Year, Month/Date, Hour/Minute.

Check Sampling Time Information

During normal functions (not Datalogging), press the Sampling Button and
the lower LCD display will show the Sampling Time Information.

SD Card Data Structure

1) The rst time the SD card is used in the meter, the SD card will
generate a folder: LXA01.

2) The rst time you use the Datalogger, in the folder LXA01, a new le
name LXA01001.XLS will be created. The Datalogger will use this
le until the Data has reached to 30,000 rows. The meter will then
will generate a new le with a subsequent number, for example
LXA01002.XLS.

3) The folder LXA01 can hold 99.XLS les. When that number has
been reached, the meter will then will generate a new folder with
a subsequent number, for example LXA02. Max number of LXA-­folders is 10.

Data Transfer from SD card to Computer (EXCEL Software)

1) After Datalogging, remove the SD card from the SD card slot.

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2) Plug in the SD card into the Computer’s SD card slot or insert the
SD card into the optional SD card adapter and connect to your
Computer. Turn your computer on and a folder will appear on your
desktop representing you SD card.

3) Open “Microsoft EXCEL”. Download the EXCEL les from the SD
Card to the computer by opening up the SD folder and selecting
the desired EXCEL les, and drag-and-drop them onto your Com­puter. Open the les with EXCEL (File – Open).

4) The EXCEL le will have the following column headers in this order:
Place (Position Number), Date (Year/Month/Day), Time (in 24h
clock), Value, and Unit.

Advanced Settings

During normal functions (not Datalogging), press and hold the SET Button
for 2 seconds to enter the “Advanced Setting” mode. Press the Next But­ton scroll through eight main functions, shown on the lower display:

dAtE Set clock time (Year/Month/Date, Hour/Minute/Second)
dEC Set SD card Decimal character
PoFF Auto power OFF management
bEEP Set beeper sound ON/OFF
tYPE Select the Thermometer to Type K or Type J
t-CF Select the temperature unit to °C or °F
SP-t Set sampling time (Hour/Minute/Second)
Sd F SD memory card Format

While in the “Advanced Setting” function, press the Esc Button to exit and
to return to normal functioning.

Set Clock Time

1) When the lower display shows “dAtE”, press the Enter Button.
Use the Up and Down Buttons to adjust the Year. After the desired

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value is set, press the Enter Button to adjust the Month, Date, Hour,
Minute, and Second values.

2) After all the time values have been set the screen will jump to “SD
card Decimal character” setting screen. To exit “Advanced Set­tings”, press the Esc Button.

Note: After the time value is set, the internal clock will run even when
the power is off, if the battery is under normal conditions.

Setting the Decimal point on the SD Card

1) When the lower display shows “dEC”, use the Up or Down Buttons
to toggle between “bASIC” (“.” Decimal Point) or “Euro” (“,” Deci­mal Point).

2) After the Decimal point character has been selected, press the
Enter Button to save the setting as the default. To exit “Advanced
Settings”, press the Esc Button.

Auto power OFF management

1) When the lower display shows “PoFF”, use the Up or Down But­tons to select the value “yES” (Enable Auto Power Off) or “no”
(Disable Auto Power Off.

2) After selecting “yES” or “no”, press the Enter Button to save the
setting as the default. To exit “Advanced Settings”, press the Esc
Button.

Set Beeper Sound ON/OFF

1) When the lower display shows “bEEP”, use the Up or Down But­tons to select “yES” (Beeper Sound is ON) or “no” (Beeper Sound
is OFF).

2) After selecting “yES” or “no”, press the Enter Button to save the
setting as the default. To exit “Advanced Settings”, press the Esc
Button.

Select the Thermometer to Type K or Type J

1) When the lower display shows “tYPE”, use the Up or Down Buttons
to select “K” (for Type K Thermometer) or “J” (for Type J Thermom-

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eter).

2) After selecting “K” or “J”, press the Enter Button to save the setting
as the default. To exit “Advanced Settings”, press the Esc Button.

Select the Temperature unit to °C or °F

1) When the lower display shows “t-CF”, use the Up or Down Buttons
to select “C” (for °C) or “F” (for °F).

2) After selecting “C” or “F”, press the Enter Button to save the set­ting as the default. To exit “Advanced Settings”, press the Esc
Button.

Set sampling time

1) When the lower display shows “SP-t”, use the Up or Down Buttons
to adjust the value to either 0, 1, 2, 5, 10, 30,60, 120, 300, 600,
1800, or 3600 seconds.

2) After the Sampling value is selected, press the press the Enter But­ton to save the setting as the default. To exit “Advanced Settings”,
press the Esc Button.

SD memory card Format

Please Note: Formatting the SD card erases all data from that SD card.

1) When the lower display shows “Sd F”, use the Up or Down Buttons
to select “yES” (format the SD card) or “no” (do not format the SD
card).

2) To format your SD card, select “yES” and press the Enter Button.
The Display will show “yES Enter”, to conrm. Press the Enter But­ton to conrm.

PC Serial Interface

The instrument features an PC output via 3.5 mm terminal. The connector
output is a 16 digit data stream which can be utilized to the user’s specic

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application. An USB RS232 lead with the following connection will be
required to link the instrument with the PC serial input.

Meter (3.5mm Jack Plug) PC (9W “D” Connector)

Center Pin Pin 2
Ground/Shield Pin 5

The 16 digit data stream will be displayed in the following format:
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

D0 End Word
D1 to D4 Upper Display reading, D1= LSD, D4= MSB
D5 to D8 D5=? D6=? D7=? D8=?
D9 Decimal Point ( DP) for display

0 = No DP, 1 = 1 DP, 2 = 2 DP, 3 = 3 DP
D10 D10 = 0
D11 D11 = 0
D12 D12 = 0
D13 D13 = 0
D14 D14 = 0
D15 Start Word

System Reset

If an error occurs, press the Reset Button with a Pin. If the Reset Button
does not x the error, please send in the unit to our Calibration Lab for

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repair. E-mail [e-mail] for more information.

Battery Replacement

1) When the left corner of LCD display shows , it is necessary to
replace the battery

2) Loosen the screws of the Battery Cover and remove

3) Remove the batteries and replace with Six DC 1.5 V batteries
(UM3, AA, Alkaline/heavy duty)

4) Make sure the battery cover is properly secured after changing the
battery

For service on this or any other REED product or information on other
REED products, contact REED Instruments at [e-mail]

Notes

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