Extech Instruments SD500 Manual de usuario

USER GUIDE

Datalogging Hygro-Thermometer

Model SD500

SD500-EU-EN V1.7 07/13

Introduction

Congratulations on your purchase of the Extech SD500 Temperature/Humidity Datalogger. This meter

measures, displays, and stores temperature and relative humidity readings. 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. Please visit the Extech Instruments website (www.extech.com) to

check for the latest version of this User Guide. Extech Instruments is an ISO-9001 certified company.

Features

LCD simultaneously displays Temperature and Relative Humidity

Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy

transfer to a PC

RS-232 PC interface jack

Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds

Long battery life or AC adaptor

SD500-EU-EN V1.7 07/13

Product Description

1. Humidity Display

2. Temperature Display

3. Side Compartment

4. LOG (ENTER) button

5. SET button

6. Sensors

7. ▲(TIME) button

8. ▼button

9. AC adaptor socket

10. Reset button

11. RS-232 output

12. SD memory card socket

Note: Battery Compartment and Tilt Stand are located on the back of the meter.

SD500-EU-EN V1.7 07/13

Operation

Battery Warning, Installation and Replacement

1. When the low battery icon appears in the display the batteries are weak and should be

replaced. However, in-spec. measurements may still be made for several hours after low

battery indicator appears before the instrument becomes 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.

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: Displayed error messages:

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

2. Press the LOGGER button for >2 seconds to begin logging. “DATALOGGER” will appear in the

display 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 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.

CArd

LobAt

CH-

CArd

SD500-EU-EN V1.7 07/13

SD Card Data Structure

1. When the SD card if first inserted into the datalogger the folder HTC01 is created.

2. The first datalogging session will then create a file HTC01001.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, HTC01002.XLS is created. This is repeated every 30,000

columns until HTC01099.XLS. At this point a new folder, HTC02 is created and the process is

repeated. HTC10 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 from within the spreadsheet

program. The file will appear similar to the figure below.

SD500-EU-EN V1.7 07/13

Advanced Settings

The SET function is used to accomplish the following:

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 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. When yES and Ent appear, press the Enter key again to format the card and erase all

existing data. The screen will display a flashing yEs and ESC while the memory is being

erased and formatted.

3. dAtE – Set the date and time. Press the ▲or ▼buttons to adjust the selected 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 value change of >1% RH or

>1°C/F.

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 and press Enter to store the selection.

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.

SD500-EU-EN V1.7 07/13

Specifications

Display 60 x 50 mm (2.4 x 2.0”) LCD

Measurement sensors Temperature: Internal sensor

Relative Humidity: Precision capacitance type

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 (32 to 122°F)

Operating Humidity Less than 90% RH

Power Supply Six (6) AAA (UM4) Alkaline or heavy duty 1.5 V batteries or

9V AC adaptor.

Battery life Dependent on sample rate, for new alkaline batteries and 60 second

sampling time, > one month is typical. Fast sample rates will

significantly reduce battery life.

Weight 282 g (0.62 lbs.)

Dimensions 132 x 80 x 32mm (5.2 x 3.1 x 1.3”)

Range Resolution Accuracy (of reading)

0.0 to 50.0 °C 0.1°C ± 0.8°C

Temperature

32.0 to 122.0°F 0.1°F ± 1.5°F

70 to 90% 0.1% ± (4% of reading + 1% RH)

Relative Humidity

10 to 70% 0.1% ± 4% RH

Note: Above specification tests under the environment RF Field Strength less than 3 V/M & frequency

less than 30 MHz only.

All EU users are legally bound by the Battery Ordinance to return all used batteries to

community collection points or wherever batteries / accumulators are sold.

Disposal in household trash or refuse is prohibited.

Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the

end of its lifecycle

Other Battery Safety Reminders

Never dispose of batteries in a fire. Batteries may explode or leak.

Never mix battery types. Always install new batteries of the same type.

ISO-9001 Certified

www.extech.com

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