
Often used to reduce noise picked up by the signal leads. For each input signal there are two signal wires. A third connector allows the signals to be referenced to ground. The measurement is the difference in voltage between the two wires, any voltage common to both wires is removed. See also: Differential Amplifier.
Found on
https://www.encyclo.co.uk/local/20687

A signal-input circuit where SIG LO and SIG HI are electrically floating with respect to ANALOG GND (METER GND, which is normally tied to DIG GND). This allows the measurement of the voltage difference between two signals tied to the same ground and provides superior common-mode noise rejection.
Found on
https://www.encyclo.co.uk/local/20850
No exact match found.