FILLING
Checkweighing

ChaseWeigh™ SYSTEM DESCRIPTION:

Chase-Logeman provides "non-destructive" sample
checkweighing in the star wheel with direct "feed-back"
control to the filling pump that adjusts fill volumes
automatically. The sample checkweighing takes place in
the star wheel utilizing two checkweighing stations, a tare
weight and a gross weight station. The tare weight is
taken at the first station and the data transferred to a
microprocessor.

After filling, the gross weigh station re-weighs the vial to
determine the gross weight. The microprocessor
computes the difference between the tare weight and
gross weight to determine the product weight (net weight).
Each check weigh is compared to the target fill volume.
The difference value is then used to make trim
adjustments to the fill volume, based on short term
running average (i.e. weigh 10 shots), feed back to filler.

The trimming of the process allows improved accuracy
without operator intervention or attention.

Filling
Piston Pump > Linear Piston Pump Servo Drive > Rolling Diaphragm Pump > Gravity > Peristaltic Pump > Flow Meter > Checkweighing

back to top