Site Calibration Factors - Thermo Scientific MIE ADR-1500 Instruction Manual

Calibration and Particle Size Selection
Site Calibration
4-4 MIE ADR-1500 Instruction Manual
Record the filter gross weight (m
●
Calculate the mass increment (m) due to the collected particles, as
●
follows:

With the net mass (m) recorded in unit of milligrams, run time (t)
recorded in minutes, and flow rate (Q) recorded in liters per minute,
calculate the average gravimetric concentration C, as follows:
C
Now compare the recorded TWA from the ADR-1500 and the calculated
gravimetric particulate mass concentration (C) and calculate the calibration
factor to be programmed into the ADR-1500 site list as follows:
CAL
For example, if C was found to be 3.2 mg/m
determined to be 2.5 mg/m
now edit this value on the ADR-1500 calibration screen through the use of
pDR Port or via the keypad.
The Cal-Factors calculated from the above comparison can be stored via
pDR Port into the ADR-1500. The ADR-1500 holds up to 50 different
Factors
site names. Each site name has a default Cal-Factor of 1.000. The Cal-
Factor of each site can be adjusted either through the Menu Interface or
through the pDR Port user interface.
 
m m m
2 1
  
, 1 000 * m
    

 
t Q

FACTOR
TWA
3
, the CAL FACTOR equals 1.28. The user can
).
2
C
3
, and TWA had been
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