TSI Incorporated 8525, Руководство по эксплуатации и обслуживанию

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Operation
23
Particle Concentration
The P-T
RAK
®
particle counter displays the measured particle
concentration in units of particles per cubic centimeter (pt/cc). The
display updates once per second. The instrument range is from 0 to
500,000 pt/cc.
Sample Mode
The SAMPLE mode is the default selection on the Main Menu (the
reverse highlight indicates that it is selected). The Sample mode is used
to capture a single, 10-second averaged data point.
Instantaneous particle concentrations often fluctuate significantly. When
making a measurement, therefore, it is often desirable to dampen out
these fluctuations with a short averaging period.
Recording and Saving a Single Data Point
When you press “
↵
”, with the Sample mode highlighted, the
P-T
RAK
® particle counter begins a countdown. During these 10
seconds, it is taking an average reading of the particle
concentration. At the end of the averaging period, the following
sample screen is displayed:
Figure 3-3: Record Single Data Point
The YES selection is highlighted by default. If you press “
↵
”, the
single data point will be stored in memory. If you scroll down to
NO, the data point will be discarded.
3678
PT
CC
RECORD VALUE IN MEMORY?
YES
NO