Calculate Statistics - Reconciled Tolerance

The tolerance on the reconciled value is calculated according to the tolerance calculation method chosen in the inventory or flow element. For a flow, the calculation is based on tolerances of the meters attached to the flow. For areas in the Model that are found to be redundant measurements, the confidence on the reconciled value increases, resulting in a smaller reconciled tolerance.

When Sigmafine does a Sigmafine Balance, all the readings in the Model are considered when calculating a reconciled value. Because the Sigmafine solver uses all the meter readings in the model, there is an increased certainty in the true value of each flow. As a result, the reconciled tolerance of each flow is normally smaller than the tolerance for the measured value.

Because of the reconciliation algorithms used, the reconciled tolerances are always constrained at least as much as the meter tolerance you specify. If the solver cannot improve (reduce) the meter tolerance, the measurement is considered non-redundant. As the difference between the tolerance for the measurement and reconciled tolerance increases, the redundancy of the measurement also increases.

The name of the default Element Attribute to which the reconciled tolerance result is written is [element].ReconciledTolerance where [element] is the name of the measurement point element (inventory or flow).