User guide

11
CALIBRATION AND SAMPLING
Calibration
Calibrate pump fl ow rate with the IMPACT Sampler in line (loaded with
representative fi lter and impaction disc). See pump and calibrator operating
instructions.
Set the pump fl ow rate to 10 L/min (see Leland Legacy
Quick Guide on page 10). Ensure the pump has run for
5 minutes before proceeding with calibration. Ensure the
rain cover is removed from the inlet and that the impactor
is loaded with representative media and fully assembled (see
Inserting a Collection Filter into the IMPACT Sampler and
Inserting an Impaction Disc into the IMPACT Sampler).
Screw the calibration adapter onto
the impactor inlet.
Calibrate pump fl ow rate with a calibrator. Adjust the
fl ow rate until the calibrator displays 10 L/min (see Leland
Legacy Quick Guide on page 10). Record the fl ow rate.
Reset the accumulated data before sampling. See pump and
calibrator operating instructions.
1
When calibration is completed,
disconnect the calibrator and tubing
from the calibration adapter. Remove
the calibration adapter from the
impactor. Remove the representative
media and replace with fresh media
for sampling.
Use a short length of calibration tubing to connect the inlet of the
calibration adapter to the outlet of a calibrator to form a calibration train.
Unscrew the quick-connect plug. Use tubing with a quick-connect fi  ing to
a ach the case (pump) inlet to the outlet of impactor.
Ensure O-ring is installed on the quick-connect fi  ing before
inserting it into the inlet. Absence of the O-ring can aff ect
measurements.
Inlet
Quick-
connect
plug
Inlet line
to pump
Quick-
connect
fi tting on
tubing
Inlet to
pump
IMPACT outlet
Calibrator
outlet
Calibration
adapter