Unpacking and Setting Up the CPC 2-5
Supply External Vacuum to the CPC
An external vacuum port is located in the lower right-hand corner of the
CPC back panel. An external vacuum must be connected to this port
before the CPC can count particles. Vacuum source, either a central
building vacuum or a stand-alone vacuum source (e.g., TSI Model 3032
Vacuum Pump), should provide at least 60 kPa (18 in. Hg) vacuum and
1.0 L/min critical flow at the inlet of each CPC. Details of vacuum
specifications are given in Chapter 5.
Positioning the CPC
Place the CPC on a level surface. Ensure the cooling fan on the back
panel of the CPC is exposed to ambient air.
Note: If the CPC has n-butyl alcohol (butanol) in the reservoir, be very
careful when moving the CPC. See “Moving and Shipping the CPC”
section for details.
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