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The illustration sketch is applicable to the PRV-S mechanism in design configuration employing a tooth pulley-belt drive for minimum headroom
installation. Alternately, a gearmotor drive can be coupled to the cutter shaft directly by a self-aligning grid coupling. The cutter shaft is supported by dual flange bearings for either drive
configuration.
Cutter opening is adjustable up to 18 degrees (five percent extraction) by means of simple mechanical brackets. Cutter angle is selected to obtain
the proportion of sample specified. A hinged inspection door with safety switch is provided to access the brackets for cutter angle adjustment. Cutter blades are replaceable, fabricated from type 304
stainless steel or other wear resistant material as specified.
Motor drives typically are 1/3 HP or 1/2 HP according to sampler model required and application requirements. A timer-starter control unit model
PB-200 series is available for stand-alone operation of a PRV-S sampler. Alternatively, the sampler can be operated from a remote or centralized control system, or a programmed logic controller when the sampler is
part of a multistage system.
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