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Auto-Grader: Direct quality control

 

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Intended use

The Auto-Grader continuously determines the melt flow rate, film purity, and transparency - within seconds on-line with polymer production.

 

  • Objective
  • Continuous
  • Real-time testing
  • Integration into process control system

 

Auto-Grader - for Complex On-line Production Control

The Auto-Grader continuously determines the melt flow rate, film purity, and transparency - within seconds on-line with polymer production. Self-optimizing and automatic operation ensures optimum adaptation to the polymer to be tested. All relevant data are stored in a database and can be transmitted to a process control system.

When production changes over to a new charge, the Auto-Grader® allows to exactly determine the time when the product meets the specification. This minimizes the portion of "out-of-specification" material.

State-of-the-art Windows™ software allows visualization of all data on a single monitor. The system is open to expansion for running further on-line measurements, e.g. of color, haze, density (NIR), etc.

A standard Ethernet port is provided for connection to a modern process control system. An optional serial RS 232 can interface to a host computer for monitoring all data in a control room of the production plant. Alarms concerning the specification limits of the product as well as machine alarms can also be connected to the control room.

Auto-Grader

Quantity
  • Dimensions (H * W * L) • overall: 2.0 * 2.4 * 2.0 m
    • eval./control unit: 2.0 * 1.3 * 0.6 m 
    • processing unit: 1.9 * 1.6 * 0.8 m
    Connections 2 * water
    1 * air, approx. 5 bar 
    1 * 400 V three-phase, 32 A, 50/60 Hz
    Interface Ethernet (standard), RS 232 (option), current circuit (optional)
    1 * collective alarm
    1 * video output
    1 * connection for optional printer
    1 * RS 232 for optional single-parameter measurement
    1 * contact for sampler
    1 * code for sampler
    Ambient conditions temperature 0 - 40 °C 
    max. air humidity 65 % 
    full air conditioning
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