SKC Limited Haz-Dust IV - Manual (Page 33)

Auto-Zero,
Continued
3 Select Auto Zero from the Main Menu.
4 Select Auto-Zero.
Result: The Auto-Zeroing screen appears briefly.
Note: Wait 50 Seconds. The unit automatically executes the steps
necessary to reestablish the baseline.
Result: The Main Menu is displayed when the auto-zero process
is complete.
5 Remove the zeroing filter and begin the sampling process
described on page 3-10.
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