background image

Fig. 2.
Typical
Excel 
data-only
screen

Fig. 3. Typical Excel graphics-only screen

9

2. To pause automatic datalogging

, press the LOGGER button once; this action makes the

flashing term “LOGGER” disappear from the top right of the display and changes the
term “REC” from flashing to constant. Pressing the LOGGER button again resumes
automatic datalogging.

3. To end automatic datalogging

, press the REC/ENTER button and hold it for at least two

seconds. This action causes the “REC” message to disappear.

4. To log data manually

, set the sampling time to zero using Step 7 of the setup

procedure. Then press the REC/ENTER button once. The display will show the term “REC”
on the top line, a value in the middle, and below it the letter “P” on the left and a number
from 1 to 99 on the same line to the right. The number indicates the position on the 
SD card that will be used to store manually logged data.

Now press the LOGGER button. This will cause the beeper to sound and the term “LOGGER”
to briefly appear at the upper right of the display. As in automatic datalogging mode, in this
mode the instrument is time-stamping measurements and storing them on the SD card.

In manual datalogging mode, however, measurements are stored continuously 
(with a sampling time of zero), and their locations on the card can be changed.

5. To change the storage location of manually logged data

, press the 

button once;

this causes the “P” to disappear from the left side of the display and the value on its line
to begin flashing. Once the flashing begins, you can use the 

and 

buttons to change

the flashing value to any number between 1 and 99. Once you have chosen the storage
location, press the REC/ENTER button to save the setting. This causes the value to stop
flashing and the “P” to return.

6. To end manual datalogging

, press the REC/ENTER button and hold it for at least three

seconds. This action causes the “REC” message to disappear from the top line of the display.

TRANSFERRING DATA
FROM THE SD CARD
TO A COMPUTER

After automatic or manual
datalogging of measurements,
remove the SD card from the
meter and plug it into your
computer either directly (if it
has an SD card slot) or 
through an SD card reader.

Because the files containing
time-stamped data logs have the file 
extension .xls, they open in Microsoft’s 
Excel application. Figures 2 and 3 show 
kinds of Excel presentations: a data-only
screen and a graphics-only screen.

Содержание DSM403SD

Страница 1: ...Please read this manual carefully and thoroughly before using this product DSM403SD USER S MANUAL CLASS 1 SOUND LEVEL METER WITH DATALOGGING SD CARD ...

Страница 2: ...e 4 Setup 5 6 Calibrating the Meter 6 7 Normal Operation 7 8 Holding and Storing Measurements 8 Automatic vs Manual Datalogging 8 9 Transferring Data from the SD Card to a Computer 9 Specifications 10 Maintenance Tips 11 Optional Accessories 11 Warranty Information 11 Return for Repair Policy 11 ...

Страница 3: ...403SD can make full use of the portability reliability and large storage capacities that SD memory cards offer Measurements can be made automatically at any sampling rate between one second and one hour After time stamping and storing the measurements on an SD card plugged into the instrument a process called datalogging the user can remove the card and plug it into to a laptop or desktop computer...

Страница 4: ...e DSM403SD comes fully assembled in a hard carrying case along with a sound wind shield ball a 2 GB SD memory card and this user s manual Optional accessories available from General Tools Instruments include a 94 dB or 94 114 dB sound calibrator and a 9VDC adapter for a 110V power supply See the Optional Accessories section of this manual for more details Figure 1 shows all of the controls and ind...

Страница 5: ...st five seconds until the word dAtE appears in the center of the display y along with the flashing value 00 00 00 at the lower left above yy mm dd Set the current year by pressing the or button repeatedly until the correct value appears above yy Quickly within three seconds press the REC ENTER button to store the setting The next screen that appears will have the value above mm flashing Use the or...

Страница 6: ...ed card is being repurposed from use with another SD card instrument or a camera for example and all data on it is to be erased Choose no to preserve any data on a card previously used with this instrument If you choose yES after you press the REC ENTER button the instrument will prompt you to confirm that decision by displaying the term Ent below yES and sounding three beeps To confirm that you w...

Страница 7: ... meter s default setting and manually enter and use a specific measurement range 1 To use a specific measurement range press the button which has the word Range stenciled above it once The display will then show the first of the three range options 30 80 representing a full scale range of 30 to 80 dB Press the button again and the display will show the second option 50 100 Press the button again a...

Страница 8: ...R button again briefly will make the term MAX appear to the right of REC and switch the display to the maximum value stored in memory during the last recording session Pressing the REC ENTER button again briefly will make the term MIN appear to the right of REC and switch the display to the minimum value stored during the last session 3 Set the datalogging sampling time press the LOGGER button whi...

Страница 9: ...stamping measurements and storing them on the SD card In manual datalogging mode however measurements are stored continuously with a sampling time of zero and their locations on the card can be changed 5 To change the storage location of manually logged data press the button once this causes the P to disappear from the left side of the display and the value on its line to begin flashing Once the f...

Страница 10: ... 4 kHz 2 1 dB and 3 1dB 8 kHz 3 0 dB and 6 0 dB 12 5 kHz 3 5 dB and 17 0 dB 16 kHz Measurement resolution 0 1 dB Sampling time options 0 1 2 5 10 30 60 120 300 600 1800 or 3600 seconds 0 seconds to 1 hour Settable parameters Date time auto power off beep sound sampling time deci mal point or comma decimal division A or C frequency weighting fast or slow time weighting Storable recallable readings ...

Страница 11: ... it to be defective in material or workmanship This warranty does not apply to damages that General determines to be from an attempted repair by non authorized personnel or misuse alterations normal wear and tear or accidental damage The defective unit must be returned to General Tools Instruments or to a General authorized service center freight prepaid and insured Acceptance of the exclusive rep...

Страница 12: ...31 6100 FAX 212 431 6499 TOLL FREE 800 697 8665 e mail sales generaltools com www generaltools com DSM403SD User s Manual Specifications subject to change without notice 2010 GENERAL TOOLS INSTRUMENTS NOTICE WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS MAN DSM403SD 12 22 10 ...

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