Qualicoil

Qualicoil Eddy Current
mold level measuring system

Qualtec GmbH has developed the new Qualicoil electromagnetic mold level measuring system which shows the “true” liquid metal level independent of any powder layer or slack layer inside the mold. Qualicoil has been successfully installed at Verona Steel in Italy since 2008 where it operates in fully automatic mode, including auto startup.The new Qualicoil mold level measuring system measures the true liquid steel level inside the mold and is not affected by any powder or slag layer. The Qualicoil system is easy to install, automatic startup has been performed since the first trial at Verona Steel. The Qualicoil system needs no mechanical mold modification and the suspended arm can be mounted at the most convenient position and eventually upgraded with a semi robotic pneumatic arm.  

Main Features

  • Produces a measurement range of 300mm with dual level ranges
  • Digital Processor with fast update times
  • Auto-tunes to each specific coil
  • Eliminates temperature drift of level signal
  • Contains micro preamplifier in coil arm
  • Processor is PLC based and can be mounted in control room.
  • PC based Visualization system allows real-time trending and historical analysis
  • PCMCIA interface and CAN Bus network for multiple strands.
  • Works with existing Coils

PLC Specifications

Power Requirements 24VDC  for PLC and 110VAC or 220 VAC for Amplifier
Screen  QVGA  5,7”  Graphical Display
Memory architecture 700 KB sRam, 600 Kbyte Flashprom, 1,4MB User Rom
Communication interfaces 1 x RS 232, 1 x Can-bus , TCP / IP
Coil Works with RT-1040 or RT-1020S
Coil Arm Customer Specific or adapts to NKK style
Calibration one point; max min; double range; 10 point
Approvals  CE, IEC 61131-2, EN 50081-2

Qualicoil System Diagram

Visualization Software Features

Qualicast visualization software is a complete real-time analysis tool to monitor your Qualicoil with the continuous casting process. This software allows you to monitor and access process parameters to fine tune your system. The package also stores historical data and trends so that previous casts can be viewed. This software can be installed and viewed remotely via a company intranet or even over the internet (TCP/IP Ethernet).