![Fluke MP Series Abridged User Manual Download Page 31](http://html.mh-extra.com/html/fluke/mp-series/mp-series_abridged-user-manual_2309932031.webp)
Installation
Air Purge Collar
31
5
5.7 Air Purge Collar
The air purge system produces a laminar air flow that protects the linescanner window from dust, moisture, and
vapor. The air flows from the couplings through the walls of the housing and through side slits near the scanner’s
window. The air flow should be between 1.67 l/s (0.44 gallons/s) and 3.33 l/s (0.88 gallons/s) through each side,
which corresponds to a pressure between 0.5 bar (7.25 PSI) and 3.0 bar (43 PSI) when using the supplied metric
fittings. The inside diameter for the air hose should be 4 mm (0.16 in.). The hose couplings for the air purge system
are connected to the housing through ISO
228 G 1/8” stainless steel fittings.
Use only clean or ”instrument grade” air (free from oil contaminants). Do not use cooled
air. This could lead to condensation on the linescanners window!