10
display. As in automatic datalogging mode, in this mode the instrument is storing
measurements and their time stamps on the SD card.
In manual datalogging mode, however, measurements are being 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 DOH-
SD1 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 extension .xls, they open in
Microsoft’s Excel application. Figures 4, 5 and 6 show three kinds of Excel presentations: a data-
only screen, a graphics-only screen, and a screen that mixes both types of content.
4. Typical Excel data-only screen
