Repeatability
The same input under the same conditions gives the same measured output, within a stated tolerance. This is what makes a difference between two runs mean something.
Timing
Commands, sensor readings and recorded events share one clock. Seeing the gap between an action and a response is where the science begins.
Calibration
Every sensor drifts, so every channel has a calibration reference, a schedule and an uncertainty that travels with the data.
Fault handling
An instrument that records its own faults is an instrument you can trust. A faulted run is data about the machine, and it stays in the record with its cause.
Why this comes first
These four properties are what let a later measurement carry weight. Getting them right on the bench is how we earn the right to ask the biological questions, with the right specialists and oversight beside us.
Limitations
A test-plan explanation. Numerical tolerances will be published with the characterization report.
Related open problem
Trustworthy bench measurements: Which measurement limitations could invalidate an interpretation of the first Neuroclearance bench results?