Reference Manual

Draft
Design and Function12 Q3 Dosing Module
Weight test head
The weight test head performs an automated repeatability test by
placing a test weight on given tare weights. The repeatability of
the system is determined based on 10 consecutive
measurements of the test weight. If your instrument fails the tests,
inform a METTLER TOLEDO service technician.
Liquid dosing head
Liquid dosing heads areused for automatic liquid dosing. They
are used together with a pump and bottle. The liquid dosing head
contains an RFID tag which stores information about the dosing
head and the used substance.
3.5 Dosing head RFID tag
Each powder and liquid dosing head is equipped with an
integrated RFID tag (1) that stores and exchanges data with the
instrument.
Various data is stored in the RFID tag of the dosing heads, such
as the substance name, lot ID, filling date, expiry date, etc. It can
also include customized data fields.
This data can be edited on the terminal and should be set before
using a new dosing head for the first time to have the data
available for reports and labels.
1
1
For powder dosing heads, the counter for the remaining powder dosing cycles is based on the lifetime limit of
the dosing head, which can be defined by the customer. With every dosing cycle started, the counter is
decreased by 1. If the counter drops to zero, consider replacing the dosing head. If the vial of the old dosing
head still contains a considerable amount of powder, you may remove the vial from the old dosing head and
screw it onto the new dosing head. Copy the user data and the powder content value from the old dosing head
to the new dosing head.
The quantity of powder added to the dosing head can be stored in the RFID tag during the filling procedure. The
RFID information is updated after each dosing operation such that the powder quantity in the dosing head is up
to date. If the remaining quantity of powder is insufficient for the next dosing cycle, a warning message will
appear.