Ideal Calibration for Button Load Cell 3137_0

[Rhybot]

The Calibrating Load Cells (https://www.phidgets.com/docs/Calibrati ... _Load_Cell) page lists a formula mapping resistances to force.

I am using the Button Load Cell 3137_0 (https://www.phidgets.com/?tier=3&catid= ... prodid=228) with Wheatstone Bridge Phidget DAQ1500_0 (https://www.phidgets.com/?tier=3&catid= ... prodid=957) and the VoltageRatioInput API.

I have two questions:
- How do I go from VoltageRatio to resistance?
- What is the "ideal" (from spec-sheet only) calibration to use for 3137_0?