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TE-5170V VFC TSP 20 Operations Manual



The calculated flow in m3/min will be calculated using the g-factor formula, this flow will
correspond to the flow found in the lookup table supplied with the VFC.
The percent difference will be calculated using the formula:

 
As per stated in the method IO-2.1, % Difference calculations should be less than +-4%
3. To calculate the total air volume during the sample enter the
following information:
Calculate Total Air Volume Using G-Factor
Average
Temperature
Enter the average temperature of the sample
throughout the sample period in Deg F. The
temperature will then be calculated in Deg K
Barometric
Pressure
Enter the average barometric pressure of the sample
throughout the sample period in Inches of Hg. The
barometric pressure in mmHg will then be calculated
Clean Filter
H20
Enter the clean filter pressure in inches of water prior to
sampling
Dirty Filter
H20
Enter the dirty filter pressure in inches of water after
sampling. The average sample pressure will then be
calculated in mmHg
Runtime
Enter the total runtime in hours (xx.xx) of the sample
Using the g-factor formula, Po/Pa will be calculated and an average flow rate of the
sample will be calculated in m3/min. Using this information the total sample volume will
be calculated.
If you do not have a G Factor, go to TE-5170V High Vol. TSP on web site
An example of a Volumetric Flow Controlled Sampler Calibration Data Sheet
has been attached with data filled in from a typical calibration. This includes
the transfer standard orifice calibration relationship which was taken from
the Orifice Calibration Worksheet that accompanies the calibrator orifice.
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