TSI Instruments 3082, Operation And Service Manual

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4-6 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938
Figure 4-5
Electrostatic Classifier Internal Components (viewed from above)
M a i n C o m p o n e n t s
Aerosol Inlet/Impactor
An inlet adapter is installed in the Model 3082 when shipped; the impactors
are included in the 3082 Accessory Kit. For details about using the inlet
adapter versus an impactor, see
Chapter 2 .
The impactor removes particles above a known particle size. It also acts as
a flowmeter. For more detailed information, see
Chapter 1, How It Works .
Three impactors are available for use with the Model 3082. The impactor
set includes a removable impaction plate that is interchangeable with each
of the three impactor bodies; the impaction plate must be in place for the
impactor to function properly. Use Table 4-1 to determine the correct
impactor for your application. On the touch-screen display, you can view
the flow rate directly from the pressure drop measured across the impactor.
Each orifice is individually calibrated. When you insert the impactor, the
classifier automatically detects the impactor memory chip and uses the
calibration information stored on it.