General Tools and Instruments DLAF930SD - Manual (Page 10)

Whenever the instrument is in measurement mode, you also can check the current
date and time by briefly pressing the SET ▼ button (which has the words “Time
check” stenciled below it). Doing so causes both values to appear briefly at the lower
left of the display.
HOLDING AND STORING MEASUREMENTS
8. To hold a measured value, press the FUNC./HOLD/NEXT button during the
measurement. Doing so will cause the word “HOLD” to appear at the top of the
display. Pressing the FUNC./HOLD/NEXT button again releases the hold.
9. To record and recall readings, press the REC/ENTER button while making
measurements. This will make the term “REC” appear at the top of the display.
Pressing the REC/ENTER 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.
10. To exit recording mode, press the REC/ENTER button and hold it for at least
three seconds, until the term “REC” disappears from the top line of the display.
The display will then revert to showing the current reading.
AUTOMATIC VS. MANUAL DATALOGGING
The DLAF930SD 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.
11. 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.
12. 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.
13. 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.
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