REC 3838 1-1
CHAPTER 1.0
INTRODUCTION
1.1 GENERAL DESCRIPTION
The AC-4000 Electronics System is a high accuracy machine. When combined with a
weighing frame, it performs weight inspection of individual product packages in a
production process or package line. The AC-4000 and a weighing frame perform these
functions without interrupting product flow.
1.1.1 Applications
Typical applications for the AC-4000 Electronics System are the in-motion
weighing of:
Frozen food, bakery, confectionery, meat, and any canned or packaged goods.
Detergents, chemicals, pharmaceutical, and any bottled liquid products.
Manufactured products such as rubber, plastic, metal parts, multi-component parts
packages, and count-by-weight packages.
1.1.2 System Description
The AC-4000 Electronics System consists of:
A microprocessor-based electronic system with filtering and amplification circuitry
to interpret the signal from a loadcell. The electronics enclosure houses the CPU,
A/D and display boards.
A front panel keypad and vacuum fluorescent display. The digital keypad is used
to enter set-up parameters. The display presents weight.
1.1.3 Operation
Upon installation, certain data must be entered into the AC-4000 electronics. The
AC-4000's front panel is designed to simplify set-up and operation of a machine.
All data is entered digitally, using the keyboard buttons on the front panel. The
operator is assisted in set-up by the fluorescent displays that show what data to
enter.
During operation, the package is transported by a conveying medium (such as
chains or belts) across a weightable. The loadcell supporting a weightable
produces an electronic signal proportional to the package weight. As the package
interrupts a beam from a photocell sensor (interlock), the gross weight of the
package is computed by the AC-4000 electronics.
The AC-4000 displays the weight of the package in grams, kilograms, ounces or
pounds.
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