Use the Cut Type to determine interface threshold

At the interface of two batches, there is typically a transmix zone. As this zone passes the detector, the value of the property being measured will gradually change from the value of one batch to the other. The interface or batch cut can be located at three possible points on the transmix:

• Head

  Cut is made at the start of transmix zone. The detected property value must change by the amount of the configured property value deadband for the cut to be made:

  • If , the threshold is equal to

  • if ,the threshold is equal to the

• Mid

  Cut is made in the middle of the transmix. The property value deadband is not used to determine the cut.

  • The threshold is equal to

• Tail

  Cut is made at the end of the transmix zone.

  • 

  • If , the threshold equals

  • If, the threshold equals

    If the property values of two consecutive batches are too close together, the application may be unable to calculate a good threshold value. This will happen under the following conditions:

  • If the cut type is Mid:

    • 

  • If the cut type is Head or Tail:

    •