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Steel Industry

Mould Level Gauge LB 452

The Berthold mold level gauge is designed for measuring the level of molten metal during the continuous casting of billets, blooms or stabs, primarily for the steel industry.

LB 452 components:

  • Radioactive source/shielding
  • Scintillation detector
  • Connection cable
  • Evaluation unit LB 452

LB452 replaces the old detector LB352. LB452 is specially designed for mould level measurements. It can be used with the GAMMAcast series of radiometric detectors or the LB 452-EC ECcast in combination with the electromagnetic sensors LB 6780 Edge-Type Sensor and LB 6790 Suspended Sensor.

Technical features:

  • LB 452 can handle 4 independent level measurements in one control unit - both for radiometric and eddy current measurement methods.
  • Each measuring channel consists of one basic module, which may be extended by an extension module and/or a bus module.
  • Outputs basic module:
    • 4-20mA current output for level signal; Sink or source mode.
    • 1 relay for error signal
  • Inputs basic module:
    • 2 digital inputs for external full and empty adjust
  • Outputs extension module
    • 4-20mA current output for level signal, detector temperature or count rate; Sink or source mode.
    • 2 relay output for alarm signal: Temperature, high or low level alarm
  • Inputs extension module
    • 2 digital inputs for external selection of up to 4 calibrations
  • Profibus DP

Competitive arguments for LB452:

  • Berthold offers the system with the quickest detector response time - 5 ms
  • Berthold uses LC filter for noise cancelling which is much faster then averaging filters used in the present. In reality this means a much faster response from the mold level system for a level change.
  • Berthold's detectors has less noise due to better matching between photomultiplier and scintillator.
  • Berthold can offer an immensely robust SiPM-based detector - LB6760.
  • Berthold can offer linear Co-60 rod sources, make system calibration quick and easy, but also the operation much safer while and over flow cannot evaporate the source.
  • Berthold measurement using a Co-60 source is also much less affected by mould powder in the mould while, Co-60 has a higher penetration than a Cs-137 source.
  • Berthold has a well established and working service network

Density Meter LB 474

The LB 474 DuoSeries density measurement system is the successor of the well known and successful LB 444. It is based on the proven 2-wire technology and is compatible to the LB 444 and the LB 44xx / 54xx detectors. The measuring system LB 444 is used for contactless, continuous measurement of liquids or bulk materials in pipes and vessels. It can easily be installed on existing pipelines without downtime. It works reliably and is unaffected by color, temperature, pressure, or chemical properties of the product to be measured.

Applications:

  • Concentration measurement of acids, alkalis, saline solutions and suspensions
  • Crystallization and polymerization monitoring
  • Measurement of the solid matter content in slurry, in flue gas desulphurization suspensions, in aluminum production and in mining.
  • Determination of the bulk density in washing powder and clinker

User interface:

  • Operating Languages: English, German, Chinese, French, Italian, Portuguese, Russian, Korean, Spanish, Finish, Romanian, Serbian, Bulgarian
  • 3,5“ LC color touch display (320x240 pixels)
  • USB mouse / keyboard support
  • On-screen keyboard
  • Ethernet remote control

Power supply:

  • Wide range 100 ... 240 V AC
  • 24 V DC

Environmental conditions:

  • Operating temperature: -20°C ... +50°C

Inputs and Outputs:

  • LB 4700 detector interface (Fully compatible to the LB 44xx / 54xx detectors)
  • USB & ethernet ports
  • Monitored current output (4-20 mA) with user-defined mapping
  • 1 Error-relay (SPDT)
  • 2 Alarm relays (1x SPDT & 1x SPST) with user-defined mapping
  • 2 Digital inputs with user-defined mapping
  • Analog input 4 ... 20 mA, for temperature compensation

Diagnostic functionality:

  • Self-diagnostics according to Namur NE-107
  • Event log
  • Event counter
  • Change log
  • Data log

Software features:

  • Calibrate to density, concentration or solids content. Different algorithms apply. No need to calculate density out of concentration or solids content by hand.
  • Calibration: 1-point, multi-point
  • Process value and detector temperature alarms
  • Radiation interference detection
  • Source replacement notification
  • Simulation mode for all relevant measurement values
  • Up to 4 calibration curves
  • Compensation of product temperature variation (PT100 connected to detector or analog input)

Competitive arguments for LB474:

  • The 2-wire detectors don't need an additional power cable in the field.
  • The separate transmitter allows operation outside the radiation field.
  • The LB 474 can be operated locally without any additional devices.
  • The LB 474 can be operated from a PC via a simple ethernet connection.
  • The software of the LB 4700 detectors and the LB 474 transmitter can be updated from the control room via USB.
  • The advanced self-diagnostics of the LB 474 improves process reliability.
  • Only Berthold provides a fully DCS-compatible current output monitoring.

Advantages for the new system LB474 comparing to the old system LB444

  • Local operation per touch screen is much easier.
  • The LB 474 can be controlled remotely via an Ethernet cable from a PC (e.g. from the office). The same user interface is used as for local operation.
  • The diagnostic functions of LB 474 were implemented in accordance with the Namur recommendation NE-107 and include event-descriptions and aid instructions in plain text.
  • The LB 474 has our proven monitored current output.

Bulk Flow Meter LB 472

The LB 472 DuoSeries Bulk Flow System is a Radiometric Belt Scale, measuring production throughput or mass flow in e.g. t/h. It is mainly used for bulk materials (powders, granulates or chunks). The LB 472 is based on the proven 2-wire technology, succeeding the LB 442 Bulk Flow Meter. The transmitter is operated in combination with LB 4700 Detectors.

User interfaces:

  • Operating Languages: English, German, Chinese, French, Italian, Portuguese, Russian, Korean, Spanish, Finish, Romanian, Serbian, Bulgarian
  • 3,5“ LC color touch display (320x240 pixels)
  • USB mouse / keyboard support
  • On-screen keyboard
  • Ethernet remote control

Power supply:

  • Wide range 100 ... 240 V AC
  • 24 V DC

Environmental conditions:

  • Operating temperature: -20°C ... +50°C

Inputs and outputs:

  • LB 4700 detector interface (Fully compatible to the LB 44xx / 54xx detectors)
  • Master / slave interface
  • RS-485
  • USB & ethernet ports
  • Monitored current output (4-20 mA) with user-defined mapping
  • 1 Error-relay (SPDT)
  • 2 Alarm relays (1x SPDT & 1x SPST) with user-defined mapping
  • 2 Digital inputs with user-defined mapping

Diagnostic functionality:

  • Self-diagnostics according to Namur NE-107
  • Event log
  • Event counter
  • Change log
  • Data log

Software features:

  • Linear, square and cubic calibration
  • Calibration schemes:
    • Comparative weighing
    • Static
    • Average Mass per unit area
  • Direct
  • Calibration adjust
  • Process value and detector temperature alarms
  • Radiation interference detection
  • Source replacement notification
  • Simulation mode for all relevant measurement values

Competitive arguments for LB472:

  • The technology of radiometric belt scale is superior over conventional weighing technologies
  • Berthold product offers better long term stability
  • Only point source arrangement available, however best accuracy and performance is achieved with Co-60 rod source.
  • Temperature variations or other environmental factors have no influence to measurement.
  • Low activity of radiation source – by using high sensitivity detectors.
  • 2 wire technology make possible simultaneous transmission for data and power voltage. By using FSK modulation for data transmission the system has immunity to external interferences.

Moisture Meter LB 350

The Moisture Meter LB 350 has been designed to measure the moisture content of a variety of different products.

For example:

  • in bunkers
  • on weighing tanks
  • on feeding tanks

The large measuring volume of up to 1 meter in diameter assures a representative measured value.

Pickling Analyzer LB 3375D-de

Determination of free acidity and iron content of the LB-3375D has the following advantages:

  • No contact measuring
  • without maintenance device
  • measurements contained in a compact device that uses technology X radiation
  • precisely and lasting long life
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