AEROCET 531S Manual
Page 10
AEROCET 531S-9800 Rev A.docx
4.4.1. Sampling
The Operate screen displays current sample information when the unit is sampling (real
time data). Concentration values (ug/m
3
) are time dependent so these values may
fluctuate early in the sample; however, after several seconds the measurement will
stabilize. Figure 7 shows the Operate screen while sampling.
█
58
PM1 0.0 ug
PM2.5 0.0 ug
PM4 0.0 ug
Figure 7 – Operate Screen Sampling
4.4.2. Sample Status
The top line of the Operate screen displays the status of the AEROCET 531S while the
unit is sampling. The following table shows the various status messages:
Status
Description
STARTING...
AEROCET 531S is starting the sample and is waiting for the
count system to initialize.
HOLDING...
AEROCET 531S is in auto mode and is waiting for the hold time
to finish.
STOPPING...
AEROCET 531S is stopping the sample and is waiting for the
count system to stop.
█ █ █ █ █ █
10
AEROCET 531S is sampling. The progress bar moves from left
to right as the sample progresses. The time remaining is
displayed to the far right.
4.4.3. Sample History
Sample history (previous data) can be viewed on the Operate screen when the unit is
stopped (not sampling). To view sample history, press the
ENTER
key from the Operate
screen. The unit will display the last sample event (newest record) and display “
” in
the upper right corner of the display (see Figure 8) to indicate history data. Press ◄ or
► to move through sample history one record at a time (◄ displays older events, ►
displays newer events). Press the
ENTER
key at any time to return to the Operate
screen. Press
START
at any time to start a new sample.
03 DEC’12 11:23
PM1 0.0 ug
PM2.5 0.0 ug
PM4 0.0 ug
Figure 8 – History Screen
