451126 Datasheet, PDF (6/10 Pages) Extech Instruments Corporation. – Vane Thermo-Anemometer Datalogger

Datalogging
Instantaneous (One-Shot) Datalogging
To record one data point at any desired time, set the sampling rate = 0 by pressing
in the VEL mode. The previously stored reading will be displayed on the upper LCD line.
Enter a '0' sampling time and then press
. Now, each time
is pressed, the
present reading will be stored in non-volatile memory.
Automatic Datalogging
1. Set the Sampling rate for datalogging by pressing
rate will appear.
. The previous sample
2. Enter a value from 1 to 240 seconds using the numeric keypad. Press
done.
when
3. Press
to begin storing readings in non-volatile memory every n seconds (n =
the value entered in step 2. above).
4. The REC icon will appear on the LCD indicating that the datalogging mode is
activated.
5. The maximum number of readings that can be stored is 2000.
6. To stop datalogging, press
again. The datalogger will automatically stop
recording data when 2000 records have been stored.
See software section of this manual for instruction on viewing logged data.
IMPORTANT NOTE: If power is removed before datalogging is properly halted,
data will be lost.
Reading Stored Data Sequentially
Press
, the RECORD NUMBER will briefly display on the upper LCD line before
the measurement data appears. Press
to return to normal operation.
Reading Stored Data Randomly
1. Press
to enter the READ mode.
2. Press
and enter the number of the record in question.
3. Press
again and the desired data will be displayed.
4. Press
to return to normal operation.
Clearing Datalog Memory
Press and hold
memory.
while powering up the meter to clear the meter's datalog
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Model 451126 V2.0 6/08