|A knapsack shoulder-mounted, motorised vacuum unit
fitted with the well-proven JLO Type 35 two-stroke
engine. At a modest 3,500 r.p.m. the air speed at the 6
cm diameter intake nozzle fitted to the flexible
collecting tube is approximately 300 kph (185 mph) and a
static vacuum in excess of 180 mm Hg can be obtained. The
collected material can be stored in the
electrolytically-formed perforated screen fitted with the
plenum chamber, or in a variety of paper bag inserts. The
sample obtained may be easily removed as the
vacuum-retained cover is released automatically when the
engine throttle is closed.
This robust unit, weighing less than 12 kg, enables a wide range of sampling to be efficiently and speedily undertaken. Particular attention has been given to ease of servicing and replacement of the main drive belt without tooling.
The instrument is supplied complete with 1.8 m of clear plastic suction hose.
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© Burkard Manufacturing Co. Ltd., 7 January, 2001