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Mining Industry

AshAnalizer LB 421

Ash analyzer is specially designed to work in difficult conditions such as those in coal mining and processing it. Analyzer allows a precise determination of ash content and calorific value of coal, even on conveyors belts, in a continuous manner, without being affected by heat or dust in the process of measuring. Radiation emitted by a gamma source is attenuated by the passage on the coal conveyors belt.

Last generation of scintillation detectors with mounted opposite sources recorded radiation intensity transmitted. As the ash content of coal has a higher absorption than the fuel, the absorption is a direct measurement of ash content in coal on the conveyors belt.

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.

MicroPolar LB 567/568

The LB 567 Micro-Polar 2 is primarily used for online moisture measurement of bulk materials. It is based on Microwave Moisture technology.

In case nucleonic bulk density compensation is necessary, our LB 568 Micro-Polar Moist is your right choice.

The system consits of an emitting and receiving antenna, an evaluation unit and a HF-quad cable, with a measuring and reference line.


  • non-contacting measurement: no abrasion of the sensors
  • highly accurate
  • multi-frequency technology
  • high dynamic range (85dB)

Mini-Switch LB 471

LB 471 is used in all branches of industry, including the food. This system of measurement where applicable should be monitored one or more levels of alarm level of liquids or solid materials. LB 471 can be installed on all types of pressure vessels or tanks such as storage vessels with agitator, high pressure reactors, etc.

Detector GM Detectorul cu NaI Super-Sens

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.

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