PQ allows the user to communicate with the PQ100 Air Sampler and downloads Run
Data from the PQ100 to your PC. The data may then at a later time be appended with the
measured final filter weight, printed and stored for later use.
The Correction Calculator is also available from the PQ Main Menu and allows the user
to determine corrections for calibration and verification of flow rate.
8.6 Running the Program
From the MS-DOS prompt (typically "C:\PQ>") type;
PQ [ENTER]
if COM1 is to be used or,
PQ -2 [ENTER]
if COM2.
where;
[ENTER] is the enter key on the PC Keyboard
The "PQ" Main Menu will then be displayed.
Note: "Ctrl-C" refers to the simultaneous depression of two keys at once on the computer
console. To produce a "Ctrl-C", press and hold down the "Ctrl" key on the keyboard.
While this key is held down press the "C" key. This action will most always halt the
program and return you to the MS-DOS prompt.
8.7 Correct Utility
CORRECT is a utility that will perform the calculations outlined in the CALIBRATION
EQUATIONS. From the PQ Main Menu press "c". The resulting screen will present a
message that describes this utilities function. You must have the present local barometric
pressure reading and the ambient temperature reading of the calibration area. To correct
to Engineering Standards answer "y" to the first two questions presented by the utility
(See Appendix A for other than Engineering Standard Conditions). Then enter the
"Target Flow Rate" in liters per minute. The target flow rate is that which the PQ100 is
set to operate at. Then enter your barometric pressure and temperature readings. The
results from the correction equations will then be displayed. The Corrected Flow Rate
value is that which must be observed on the calibration standard (Bubble Meter) for the
given target flow rate. A Printout can then be obtained for reference.
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