Auto-Grader: Direkt quality control

Intended use

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


Auto-Grader

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

 

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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.

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
Results MFR; MVR; consistency factor, flow exponent
References all loads admitted by ISO 1133 in accordance with working range
Working range
(with ref. load 2.16 kg)
MFR 0.2 - 80 g/10 min., others on request, max. 20,000 Pas
Reproducibility acc. to ISO 1133
Results • detection of impurities
• differentiation between 4 particle types
• measurement and documentation in up to 9 size classes
• projection to m2
• degree of transparency
Smallest detectable particle size standard 35 μm

Downloads

Cheat sheet Auto-Grader

Auto-Grader

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