BERTHOLD LB444

  • Product Name: Berthold LB444 Density/Specific Gravity Evaluation Unit
  • Product Introduction: A sophisticated microprocessor-based signal converter and controller for non-contact density, concentration, and solids content measurement using gamma-ray absorption principles.
Category:
Description
  • Technical Specifications:
    • Measurement Principle: Gamma Attenuation (Scintillation Detector Input)
    • Power Supply: 115/230V AC ±10% or 24V DC (18-32V DC)
    • Power Consumption: Approx. 30VA (AC) / 30W (DC)
    • Outputs: 0/4-20mA (isolated, max 500Ω load), Digital (RS232/RS485), Relay outputs (Fault/High/Low alarms)
    • Display: Illuminated 4×20 character LCD (multi-language)
    • Operating Temp: 0°C to +50°C (Storage: -40°C to +70°C)
    • Mounting: 19-inch rack or wall-mounted (IP54/IP65 housing options)
    • Accuracy: <1% of full scale
  • Functional Features: Stores up to 4 calibration curves; automatic temperature compensation; background radiation compensation; self-diagnostics; statistical filtering for low count rates.
  • Application Scenarios: Mining slurries, chemical/petrochemical liquids, paper pulp density, cement clinker bulk density, fly ash in flues, food/beverage concentration.
  • Working Principle: Processes pulse signals from external scintillation detectors measuring gamma attenuation through the medium; microprocessor calculates density based on Beer-Lambert law and calibration data.
  • Installation Requirements: Mount in ventilated cabinet or NEMA4 enclosure; connect detector via shielded twisted pair (ASK modulated); ensure source-detector alignment on pipe/vessel.
  • Precautions: Requires nuclear radiation safety licensing for source handling; do not open housing if source is active; periodic verification of zero and span recommended.
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