Practical guide
Review voltage and connector matches before powering a rig
The worksheet compares declared values. It does not maintain a camera or accessory catalog, so a useful result is a short list of items that still need a manual check.
Use the comparison tolerance deliberately
Voltage tolerance is the review window you choose. With the default 12 V source and 0.25 V tolerance, a device near 12 V can receive a possible voltage match, but the result does not establish an operating range.
voltage match = absolute(source voltage - device voltage) <= entered tolerance
Treat connector text as a screening field
Connector labels are trimmed and compared without case differences. The default camera and monitor labels match the source text, while the USB-C receiver does not. Check pinout, polarity, physical fit, cable rating, and any negotiation details in the relevant documentation.
The default CSV produces 2 possible matches and a review warning because the 5 V USB-C row differs from the 12 V source.
Split rails when conversion is involved
A device on another voltage needs a documented converter and a separate rating review. Put the device rail in the CSV, record the source and converter assumptions outside the match result, and rerun the worksheet after replacing illustrative values.
Check your own scenario
Replace the illustrative inputs with measured values and dated specifications.
Open RigCurrent CheckMethod and references
Read the full calculation method and its limits
Method and examples reviewed 2026-09-30. Examples are illustrative; input values and specifications are not independently verified.