User Manual

Adjusting the Flow Rate

Introduction

The flow rate must be adjusted when it does not equal:

•

2.75 LPM for 25-mm cyclone Respirable Inlet

2.0 LPM for Thoracic Inlet

2.0 LPM for Inhalable Inlet

Adjusting the

flow rate

Follow the steps in the table below to adjust the flow rate.

1 Locate the adjustment screw on the bottom of the Haz-Dust IV

next to the charging jack.

2 Use the flow adjustment screw to adjust the flow rate.

To... Turn the adjustment screw...

Decrease the flow rate Counterclockwise

Increase the flow rate Clockwise

3 Record the Flow Rate.

4 Detach the airflow calibrator and calibration airflow tubing.

5 Continue with the “Selecting the Particle Size” process.

5 -