Model 500 Nuclear Belt Scale /Density Meter

The Model 500 Nuclear Belt Scale /Density Meter is a state-of-the-art nuclear gauging device which measures the weight of material on a conveyor belt using a sealed radioactive source.

The device operates based on the principle of gamma energy attenuation as a function of density, allowing it to provide highly accurate and reliable measurements without coming into contact with the conveyor or the material. Installation is simple and does not require modifications to the existing conveyor structure.

The Model 500 is renowned for its accuracy, boasting a precision of +/- 0.5%. Its performance remains consistent regardless of variations in belt loading and speed. The device delivers weight readings to the user every minute, ensuring real-time data is always available for process control. One of its key advantages is the lack of moving parts, which eliminates the potential for wear, breakage, or measurement errors, thus enhancing its durability and reliability. The measurement system of the Model 500 includes a source holder and a detector assembly mounted across the conveyor belt. The source assembly collimates a radiation beam through the material, while the gamma radiation detector beneath the belt measures the attenuation caused by the material. The detector signals are processed by an industrial computer housed in an electronics enclosure, which displays the measured results to the operator in real-time.

Key points:

  • Accuracy: +/- 0.5%
  • Consistency: Variations in belt loading and belt speed do not affect the measurements
  • Frequent updates: Provides weight readings every minute
  • Durable: Measurement not reliant on mechanical parts which wear or break.
  • Easy Installation: Bolts to existing belt structure without modifications.

The Model 500 generates weight measurements every three seconds and averages these readings to produce minute-by-minute values. These values are accessible to plant control systems either through direct database access or via analog outputs, ensuring seamless integration and efficient material handling.

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