General Tools and Instruments DAF4207SD - Manual (Page 10)

AUTOMATIC VS. MANUAL DATALOGGING
The DAF4207SD can automatically log data at a user-selected sampling period from
1 second 3,600 seconds (one hour). To view the sampling time that the instrument
has been set up to use, press the LOGGER ▲ button (which has the words “Sampling
check” stenciled below it) once. To change the sampling time, perform Step 9 of the
setup procedure.
8. To start automatic datalogging, press the REC/ENTER button once.
The top line of the display will then show the term “REC”. Pressing the LOGGER
▲
button at this point will make REC flash and add the flashing term “LOGGER”
at the top right of the display. This indicates that the instrument is currently
storing measured values and their time stamps in memory.
9. 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.
10. 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.
11. To log data manually, set the sampling time to zero using the procedure detailed
earlier. 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 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.
12. To change the storage location of manually logged data, press the
SET ▼ 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 SET ▼ and LOGGER ▲ 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.
13. 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.
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