Flintec II IPC - Manual (Page 6)

FlintWeigh II IPC Technical Manual, Rev. 1.06 November 2011 Page 6 of 36
3. Introduction and Block Diagrams
The FlintWeigh II IPC Weighing terminal is the ideal solution for approved (legal for trade) or non-approved
(industrial) weighing applications. In legal for trade applications the instrument has an alibi memory which
allows to trace back weighing results for years.
The integrated weighing system controller (WSC) provides connectors for standard load cells. Additionally there
is an option to connect type RC3D digital load cells by an RS485 bus system.
For evaluating standard load cells / scales there are various plug-in weighing modules ( LDU = Load cell
Digitizing Unit ). The selection of the applied weighing module will be determined by the requirements of the
standard load cells / scales to connect. The integrated scale interface assures, that all weighing will be
transferred straight and savely to the industrial PC.
The technical characteristics of the weighing modules and the information to connect the standard load cells or
the digital load cells will be described in chapter 4.
3.1. Application Range
For protecting the consumers all scales which are used for commercial transactions (legal for trade
applications) have to be calibrated in a standardized way. Typical legal for trade scales are retail scales in
shops. Privately used bathroom scales or kitchen scales are examples for scales which don’t require an
approved calibration.
Legal for trade applications
The weighing terminal has an EC type approval which covers standard load cells and scales of the accuracy
class
and .
All load cells have to keep the tolerances according "OIML R60, Metrological regulation for load cells, Edition
2000".
For selecting the proper weighing module in legal for trade applications, it is required to verify the compatibility
of modules for the weighing instrument (see file KOMPMODENG.XLS on the Flintec CD-ROM).
For further information about software, alibi memory and legal for trade applications see chapter 4.
Industrial applications
All scale connections in industrial applications fall within the responsibility of the scale operator. In such
applications an approved alibi memory is not available.
3.2. Block Diagrams
Fig. 3.1: Connection of standard load cells