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.