Checking the calibration span – SKC Limited Haz-Dust IV User Manual

Page 63

Checking the Calibration Span,

Continued

Checking
Calibration
Span

Follow the steps in the table below to check the Calibration Span of the Haz-
Dust IV.

Note: Failure to follow this procedure in its entirety may cause an incorrect
“k” value reading.

Step Action

Insert the Thoracic sampling inlet into the sensor head of the Haz-
Dust IV.

Attach the filter cassette to the sensor of the Haz-Dust IV.

Attach the air intake hose to the filter cassette.

Put the Haz-Dust IV into Respirable mode using the steps below.

Step Action

4-1 Select Special Functions from the Main Menu.

4-2 Select System Options.

4-3 Select Extended Options.

4-4 Select Size Select.

4-5 Select Respirable.

Result: The Main Menu is displayed and the Haz-
Dust IV is in Respirable mode.

Activate the internal pump using the steps in the table below.

Step Action

5-1

Select Sample/Record from the Main Menu.

5-2

Select 1 Second.

5-3

Select Overwrite.

5-4

Select Yes.

5-5

Select No.

5-6

Select Sample/Rec and allow the Haz-Dust IV to
run for at least 2 minutes to stabilize.

Result: The internal sampling pump is activated.

5-7

Press ENTER after at least two minutes to stop the
sampling process.

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