How do I show the change in a measurement since the start of a run (instead of the value of the measurement itself) in SPARKvue?
Using the "first" function, SPARKvue can zero the output on the start of a run. The subsequent values for this calculation will give you the change in the measurement since the start of the run.
Some sensors can be set to zero on start through the Sensor Configuration menu. Select Edit Sensor Properties..., select the measurement that you wish to zero on startup, and choose to Zero Sensor Automatically on Start.