Components Description - Mettler Toledo QS3 Manual De Usuario

3.3 Components description

Weighing pan and rail
A rail is fixed to the base ring. All adapters and sample
vessels slide on this rail as the drive ring rotates. The rail has
one gap above the weighing pan. When a sample vessel
reaches this position, its weight hangs on the weighing pan,
allowing weighing/dosing.
Drive ring
The drive ring is the rotating component of the sample
changer. It contains six elongated slots to fit six racks, each
with five dosing positions. The drive ring also presents a
single round hole, the Home position, where simple
weighing, adjustments, and tests can be performed. When
the Home position is not used for weighing, cover the hole
using the Home position cover.
The rotation of the drive ring is provided by a motor and a
driving wheel, located at the rear of the sample changer.
Racks for sample vessels
The racks are used to hold the adapters (each containing a
sample vessel). Up to six racks can fit on the sample
changer, each with five dosing positions. Each position is
numbered to allow dosing traceability.
QS3 Sample Changer 7