Basic Operation
Sample Run Screens
2-22
PDM3700 Instruction Manual
Thermo Fisher Scientific
●
30 MIN CONC.
This field contains the mass concentration value (mg)
averaged during the previous 30-minute period.
●
CUM1 CONC.
This field contains the cumulative mass concentration
value (mg/m
3
) measured from the beginning of the first primary sample
run.
During the sampling run, the PDM3700 will run automatically until the
sample cycle ends. After 30 seconds of inactivity at the end of the sample
run, the PDM3700 will turn off its LED display. Press the “A” button to
reactivate the LED display. This action will display the Sampling Complete
- Screen #1.
First Sample - Screen #2 (
Figure 2–34
) displays the shift mass
concentration limit for the shift for the first primary sample run. Percent of
exposure limit is the percentage of exposure limit for the first primary
sample run.
Figure 2–34.
First Sample - Screen #2
The First Sample - Screen #3 (
Figure 2–35
) displays a bar graph of the
mass concentration (mg/m
3
) collected during the entire primary sample
run. When in the First Sample - Screen #1, press the “B” button to display
the First Sample - Screen #3.
1.0
0.0
Figure 2–35.
First Sample
‑
Screen #3
Each bar represents the previous 30-minute, averaged mass concentration
value. “The 1.0” denotes the highest mass concentration value measured;
the “0.0” represents the lowest mass concentration value measures. A new
bar is added to the graph every 30 minutes, with the width of each bar
representing a 30 minute time period. When there are bars displayed across
the entire screen and a new bar is added, the new bar will display at the far
First Sample -
Screen #2
First Sample -
Screen #3
