SKC Limited Haz-Dust IV - Manual (Page 27)

Thoracic Dust Particulates
Thoracic Follow the steps in the table below to select Thoracic dust particulates.
Step Action
1 Select Special Functions from the Main Menu.
2 Select System Options.
3 Select Extended Options.
4 Select Size Select, then Select.
5 Select Thoracic.
Result: The Main Menu is displayed.
6 Thread the Thoracic sampling inlet into Haz-Dust IV sensor.
Note: The sampling inlet contains plastic threads be careful not to
cross threads. To insert and remove the sampling inlet it must be
screwed in and out.
NOTE: Sensor must be removed from lapel bracket prior to
installation.
Note: If also collecting concurrent 37mm filter samples place a
clean gravimetric filter in the filter cassette. The flow rate
should be checked each time a new gravimetric filter is used. See
page 5-5 for information on checking the flow rate.
7 Attach the filter cassette to the sensor head of the Haz-Dust IV.
8 Attach the air intake tubing to the filter cassette.
9 Turn to page 3-7 and follow the instructions to Auto-Zero the Haz-
Dust IV.
Figure 3-2 and 3-2a. Thoracic Inlet, sensor head, disassembled filter cassette, 37 mm filter, and
air intake tubing. Optical sensor mounted on lapel bracket.
Figure 3.2a
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