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User's Guide
3 Channel Datalogging Thermometer
Model SD200
Introduction
Congratulations on your purchase of the Extech SD200 3-Channel Temperature
Datalogger. This meter displays and stores temperature readings from one to three type k
thermocouple temperature probes. Data is stored on a SD card for transfer to a PC. This
meter is shipped fully tested and calibrated and, with proper use, will provide years of
reliable service
Features
• Triple LCD simultaneously displays 3 Type-K Temperature channels
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for
easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds
• Long battery life or AC adaptor
• -Temperature range of -58 to 2372°F / -100 to 1300°C with 0.1°F/°C resolution
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Product Description
1. T1 Display
2. T2 Display
3. T3 Display
4. LOG (ENTER) button
5. SET button
6. Temperature Units icon
7. ▲(TIME) button
8. ▼ button
9. AC adaptor socket
10. Reset button
11. RS-232 output
12. SD memory card socket
13. T1 thermocouple input
14. T2 Thermocouple input
15. T3 thermocouple input
Note: Battery Compartment and Tilt Stand are located on the back of the meter.
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Operation
Battery Low Warning, Installation and Replacement
1. When the
replaced. However, in-spec. measurement may still be made for several hours, after
low battery indicator appears, before the instrument become inaccurate.
2. To replace or install batteries, remove the Philips head screw that secures the rear
battery cover and lift off the cover.
3. Replace the six AAA batteries (use alkaline heavy duty type), observing polarity
4. Replace and secure the cover.
Connecting thermocouples
1. Insert the Type K thermocouple mini-connector plug into the mini-connector socket on
the bottom of the datalogger observing polarity (wide blade/narrow blade)
2. Up to three probes may be installed.
3. The temperature for inserted probes will be displayed T1, T2, T3 from top to bottom.
4. “-------“ will be displayed for open or unused inputs.
Datalogging
1. Open the left side door and insert a formatted SD card
Note: The SD card should be at least 1GB in capacity
Note: Do not use memory cards formatted by other meters or cameras. Use the SD
card formatting procedure under the advanced features section of this manual
to correctly format the card.
Note: The internal clock must be set to the correct time See the advanced features
section of this manual to set the clock.
Note: The default data structure uses a decimal point “.” as the numeric decimal
indicator. See the advanced features section of this manual to change this to a
comma “,”.
Note: If the SD memory card is not installed, “EMPTY” will appear in the display
Note: If the temperature probe is not installed, random numbers may appear in the
data file.
Note: If the temperature probe is not installed, after data download the temperature
units symbol may not appear in the display.
Note: Displayed error messages:
icon appears in the display the batteries are weak and should be
CHCArd
LobAt
no
CArd
The memory card is full or there is a problem with the card
The battery is low and datalogging is disabled
The SD card is not inserted
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2. Press the LOGGER button for >2 seconds to begin logging. “DATALOGGER” will
appear in the display (between T2 and T3 displays) and the meter will beep each time
the data is recorded (if the beeper is enabled).
3. To stop datalogging, press the LOGGER button for >2 seconds. “DATALOGGER” will
change to “DATA” and the meter will count down through the recorded data.
NOTE: To avoid corrupting any data, do not remove the memory card without
properly ending the record function.
Time/Date/Sample Rate Check
Press and Hold the TIME button for >2 seconds and the display will cycle through the date,
time and sample rate information.
SD Card Data Structure
1. When the SD card if first inserted into the datalogger the folder TMC01 is created.
2. The first datalogging session will then create a file TMC01001.XLS. All data will be
saved to this file until the number of columns reaches 30,000.
3. After 30, 000 columns a new file, TMC01002.XLS is created. This is repeated every
30,000 columns until TMC01099.XLS. At this point a new folder, TMC02 is created
and the process is repeated. TMC10 is the final folder.
Transferring Data to a PC
1. Remove the memory card from the datalogger and plug it into the SD card slot on the
PC.
2. Launch Excel and open the data file on the memory card. The file will appear similar
to the figure below.
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Advanced Settings
The SET function is used to:
• Format the SD memory card
• Set the date and time
• Set the sampling time
• Set the beeper sound ON/OFF
• Set the SD card Decimal character
• Select the Temperature units
• Set the RS232 data output ON/OFF
1. Press and Hold the SET button for >2 seconds to enter the setting mode. The first
function (Sd F) will appear in the display. Press the SET button to step through the
seven functions. Use the ▲ and ▼ buttons to adjust the selected function. Use the
“LOGGER” button to step through fields within a function. In the SET mode, if no
button is pressed within 5 seconds the logger will revert back to the standard mode.
2. Sd F – Format the SD card. Press the ▲ button to select yES or no. For yES, press
the Enter button to format the card and erase all existing data.
3. dAtE – Set the date and time. Press the ▲ or ▼ buttons to adjust the selected
(blinking) field. Press the Enter button to store the value and to step through the
various fields.\
4. SP-t – Set the sample rate. Press the ▲ button to select the desired sample rate and
press Enter to store the selection. The selections are: 5, 10, 30, 60, 120, 300, 600
seconds and AUTO. In AUTO, the data will be stored every time there is a
temperature change of >1 degree.
5. bEEP - Set the beeper ON or OFF. Press the ▲ button to select ON or OFF and
press Enter to store the selection.
6. dEC - Set the SD card Decimal character. Press the ▲ button to select USA
(decimal) or Euro (comma) and press Enter to store the selection.
7. t-CF - Set the Temp. unit to °F or °C
8. rS232 - Set the RS232 data output ON/OFF. Press the ▲ button to select ON or off
and press Enter to store the selection
9. ESC – Exit the setting mode. Press the SET button to return to normal operation.
System RESET
If a condition appears where the CPU does not respond to keystrokes or the meter seems
frozen, press the RESET button on the side of the datalogger (use a paper clip or similar
pointed object) to return the meter to a working state.
RS232 Interface
A serial output is provided to link the meter to a PC’s serial port. Call Technical Assistance
for more information on this interface.
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Specifications
Display 60 mm x 50 mm (2.4 x 2.0”) LCD
Temperature probes Type K thermocouple
Memory Card SD memory card, 1 GB to 16 GB.
Datalogger Sampling Time 5/10/30/60/120/300/600 seconds or Auto.
Temperature Compensation Automatic
Display update rate Approx. 1 second
Data Output RS 232
Operating Temperature 0 to 50 °C
Operating Humidity Less than 85% R.H.
Power Supply 6 AAA (UM4) Alkaline or heavy duty 1.5 V batteries or
Battery life Dependent on sample rate, for new alkaline batteries and 60
Weight 199 g /0.44 LB
Dimension 132 x 80 x 32 mm (5.2 x 3.1 x 1.3“)
Type K Thermometer
Range Resolution Accuracy
-50.0 to 1300.0 °C
-50.1 to -100.0°C ±( 0.5 % + 1°C )
-58.0 to 2372.0°F
-58.1 to -148.0°F ±( 0.5 % + 1.8°F )
Note: Above specification tests under the environment RF Field Strength less than 3 V/M &
frequency less than 30 MHz only.
9V AC adaptor.
second sampling time, > one month is typical. Fast sample
rates will significantly reduce battery life.
0.1°C
0.1°F
±( 0.5 % + 0.5°C)
±( 0.5 % + 1°F )
You, as the end user, are legally bound (EU Battery ordinance) to return all
used batteries, disposal in the household garbage is prohibited! You can
hand over your used batteries / accumulators at collection points in your
community or wherever batteries / accumulators are sold!
Disposal: Follow the valid legal stipulations in respect of the disposal of the
device at the end of its lifecycle
Copyright © 2010 Extech Instruments Corporation (a FLIR company)
All rights reserved including the right of reproduction in whole or in part in any form.
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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
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