Series 5200 Enhanced Capability
Batch and Continuous Controller

The SERIES 5200, Thayer Scale’s new generation of operator interface for control and monitoring of any process weighing and flow control equipment.

• For use with any Strain Gauge or LVDT type load cell.
• Powerful internal 24 bit (1 part in 4,000,000) load resolution produces unparalleled system accuracy.
• Minimal customer wiring. The Scale Unit (SU-5200) mounted at the feeder gathers, load, speed and temperature; and communicates this information to the central processor (CPU) through a 2-wire RS422/485 connection.

SCALE UNIT (SU-5200)
This is the heart of the control system. It is responsible for continuously monitoring the major sensor signals of the process weighing equipment and digitally communicating their status back to the CPU for further processing. The Scale Unit consists of a motherboard that accepts several optional plug-in boards. These boards allow it to be easily applied to a variety of process weighing or flow equipment with sensors; Digital or Analog, temperature sensors, two Channel Industrial Encoders, three Wire NPN Open Collector Proximity Switches or Piezoelectric Accelerometer speed sensors; and Analog or Digital flow rate sensors. The mother board is also equipped with digital Input/Output terminals that can monitor and/or control specific weighing equipment signals such as; Automated Calibration Devices, Belt Tracking Limit Switches and other similar devices. It is located within ten feet (three meters) of the load sensor (if applicable). The factory mounts the unit to the equipment’s frame and pre-wires any of the critical sensors that are an integral part of this framework.

The Scale unit typically receives its power from the main instruments dedicated DC power supply and digitally transmits its information back to the instrument via an RS-485 communication link. Both of these cables are typically contained in a single dedicated conduit run.

SERIES 5200 CPU
The CPU is the brain of the control system. It is responsible for monitoring , displaying and/or controlling the variables of the process weighing or flow equipment. At the foundation of this instrument is the CPU or Embedded PC (EPC). This executes the proprietary application specific software based on real time operating system firmware. Both the software and firmware are stored in a nonvolatile memory format compact FLASH card). Sub-components of the instrument include: power supply that convert incoming AC power to the required DC supply for this unit as well as that required by the SU-5200 and OI-5200. Interface cards that handle the RS-485 communications between the SU-5200 and OI-5200 and Input/Output cards for the fixed and programmable inputs and outputs that are available.

OPERATOR INTERFACE
This is the human interface of the control system. It is responsible for providing the operator with a means of easily interfacing with the process weighing of flow equipment. It includes 24 graphic keypad controls, a 4 x 20 vacuum fluorescent display and audio beeper that combined provide visual as well as the tactile aid needed to program, operate, maintain, diagnose, and troubleshoot the entire control system.

Each application can contain up to three interfaces. One unit is typically mounted in the door of the instrumentation (CPU) and the others (if applicable) are shipped loose for remote mounting. Remote mounted units are available in industrial rated enclosures or as open chassis and are supplied if additional operator interfaces are required. Each unit, regardless of its location in the system, receives its information to and from the instrument controls via a communications link. A minimum of one operator interface unit is required for system operation.

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