Holding And Storing Measurements; Automatic Vs. Manual Datalogging - General HWA4214SD User Manual

Whenever the HWA4214SD is in either measurement mode, you also can check the current
date and time by briefly pressing the SET M 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

1. 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.
2. 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.
3. 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 HWA4214SD 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
stenciled below it) once. To change the sampling time, perform Step 9 of the setup
procedure.
1. 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
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.
2. To pause automatic datalogging, press the LOGGER
the flashing term "LOGGER" disappear from the top right of the display and changes the
term "REC" from flashing to constant. Pressing the LOGGER
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 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.
button (which has the words "Sampling check"
button at this point will
button once; this action makes
button again resumes
9