Measurement Equipment

Measuring equipment consists of Sample Buckets and Belt Scales. Sample buckets can be placed in a flow stream between equipment items to change the simulation from using calculated data to using user defined measured gradations. Belt scales can be added to conveyors to show the combined material flow streams entering a conveyor at a location between the conveyor ends.

Using Field Measurements

Sample Buckets

Sample buckets can be inserted and connected with flow streams, or can be added to inventory items or end products. Use sample buckets to input field measurements into the simulation.

  • In this mode, the simulation utilizes AggFlow Calculated Gradations downstream in all calculations.

  • In this mode, the simulation utilizes Field Measurements downstream in all calculations.

Important Notes about Sample Buckets

  • Document field measurements.
  • Monitor when calculations and measurements differ beyond acceptable levels.
  • Compare the calculated results to the field results. In a properly configured simulation variance between calculated results and field measurements indicates inefficiencies or bottlenecks in the operating plant.
  • Use field measurements to improve accuracy by instructing the simulation to use them in the calculations. Turn sample buckets on or off in calculations as desired.

To Install and Use Sample Buckets

  1. Select the Measurements category.

  2. Place a Sample Bucket on the worksheet and insert it into a flow stream.

  3. Select the Sample Bucket (it will turn blue) then right-click and choose:

  • Adjust Field Data to enter field measurements.

  • View Results to compare calculated to actual results.

  • Use Field Data or Use Calculated Data to utilize that selection in the downstream calculations.

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To Adjust Field Data

  1. Select Adjust Field Data when right clicking on the sample bucket or by double clicking on the sample bucket.

    This opens the Enter Field Data window.

  2. Choose how to enter and manage Field Data

    • Enter Measured Rate - measured rates can be entered as a reference and can be shown with monitors, measured rates are not used in the calculations

    • Apply Incoming Gradation - match field gradation to calculated, then the calculated can be adjusted

    • Create or Modify Size Ranges - Enter a new size range, or delete range from the gradation

    • Clear Field Data - Remove all field data from the sample bucket

    • Copy/Export to Excel - sends the shown gradation to Excel where it can be modified and pasted back to AggFlow DM

    • Paste from Excel - A gradation in Excel can be pasted into AggFlow DM as follows:

      • Ensure the Excel data is organized in 2 columns, descending size and % passing (retained)

      • Select and Copy the data in Excel
      • Return to AggFlow and select Paste From Excel and select yes.

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Belt Scales

Belt scales are used to monitor the amount of material passing along the conveyor belt at any point and to enter field data for comparison.

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Using Belt Scales as Monitors

Place a belt scale at any point on a conveyor to see the amount of material at that point.

The Belt Scale monitor is a “live” calculation and slidingit along the conveyor will automatically update the calculation.

To insert belt scales on a worksheet

  1. Select the conveyor (it will turn blue).
  2. Right-click and select Add Belt Scale from the short-cut menu.
  3. Select the belt scale and move it to the desired point on the conveyor.

Using Belt Scales to Enter Field Data

Enter Measured Rate to any belt scale and enter field data. Then compare calculated product flow to actual product flow at that point in the simulation.

To enter field measurements in belt scales

  1. Select the Belt Scale (it will turn blue).
  2. Right-click and select Enter Measured Rate from the short-cut menu and enter your field measurements
  3. Use Monitors to show field measurements.