a physical network medium that offers large bandwidth and the ability to support high data rates with immunity to electrical interference and a low incidence of errors.

The ANSI established colour code for thermocouple wires in the negative lead is always red. Colour Code for base metal thermocouples is yellow for Type K, black for Type J, purple for Type E and blue for Type T.

Predictable normal random variation present in every process due to the combination of existing inputs.

The ability of an instrument to reject interference from a common voltage at its input terminals with relation to ground. Usually expressed in db (decibels).

Sequential excitation of motor windings to maintain the relative phase angle between the rotor and stator magnetic fields, within specified limits, to control motor output. In brush dc motors, this function is accomplished by a mechanical commutator and carbon brushes; in brushless motors, it's done electronically using rotor position feedback.

Alloys used to connect thermocouples to Instrumentation. These alloys are selected to have similar thermal electric properties as the thermocouple alloys (however, only over a very limited temperature range).

A program that translates a high-level language program into a computer's machine code or some other low-level language.