edc HAZ-DUST HD-7204, User Manual, Page: 51 / 93

51
Introduction
The HD-7204 offers a real time rolling graphical display and statistics during sampling.
Real- Time Rolling Graphical Display
There are three viewing options for looking at real-time data.
Ten Second Graphical Display.
Upon starting a sample, the user will be automatically brought to the first of the three viewing options.
The first is a 1 second rolling graph. The display will show the run title, the real-time mass
concentration, elapsed run time, pause sample and stop sample.
The second viewing option is a 10 second rolling graph. The display will show the run title, the real-
time mass concentration, elapsed run time, pause sample and stop sample.
The third viewing option lists the real-time statistics including (Run Title, Aerosol Profile, Average, 8
Hr TWA, Min, Max, Ceiling and STEL alarms, Log Rate, Start time, Particle Size, Flow, and elapsed
time.
See page 26 on setting alarm levels. Once the alarm is set the rolling graph will display a yellow line
of the STEL and red line for the ceiling alarm. When the STEL alarm threshold has been met the
graph will appear yellow. When the ceiling alarm levels are met the graph will turn red. Otherwise the
graph will be blue.
In order to go back and view other screens the sample must be stopped.
Real-Time Data Viewing
142
52.57
45.06
37.55
30.04
22.53
15.02
7.51
0.00