Chapter 4
42
The DUSTTRAK™ monitor keeps track of the accumulated amount of aerosol
drawn through it since its last cleaning. When the internal filter replacement
is due, the filter error indicator will turn from green to red.
TSI recommends that you perform a zero check prior to each use for the
D
USTTRAK™ monitor and certainly before running any extended tests, and
after the instrument experiences a significant environmental change.
Examples of significant environmental changes would be ambient
temperature changes that exceed 15°F (8°C) or moving from locations with
high aerosol concentrations to low concentrations.
Zeroing Instrument
1. Attach the zero filter to the inlet of the instrument.
Figure 4-1: Attach Zero Filter to Inlet
2. Follow zero calibration instructions detailed in the operations section of
this manual,
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