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Terms for subject Metrology (318 entries)
Class I, II or III equipment Classification of protective measures for current carrying components
climate class The climatic conditions, i.e. ambient temperature, pressure and humidity, to which the measuring equipment can be subjected during operation (including shutdown) transport and storage
closed-control loop A combination of control units in which the process variable is measured and compared with the desired value (set point) If the measured value differs fom the desired value, a corrective signal is sent to the final control element to bring the controlled variable to the proper value
CMC Calibration and Measurement Capabilities carp
Commutec transmitter Intelligent E+H transmitters
conformity The closeness with which a calibration curve approximates to a specified characteristic curve (which can be linear, logarithmic, parabolic, etc.) It is usually measured in terms of nonconformity and expressed as conformity
conformity error The absolute value of maximum deviation between the calibration curve and the specified characteristic curve
connection compartment A separate compartment or part of a main enclosure, communicating or not with the main enclosure, and containing connection facilities
CVGT scale constant-volume gas thermometry scale
CW laser continuous wave laser
CRASTIN® Tradename for PBTP and PETP
custody transfer The term which describes this whole business
custody transfer measurement The mode in which the instrument must operate to make such measurements
custody transfer mode The mode in which the instrument must operate to make such measurements
CVGT scale constant-volume gas thermometry scale
CW laser continuous wave laser
D-action derivation action
direct-current power dc power
dead band Finite range of values within which variation of the input variable does not produce any noticeable change in the output variable
dead band error The maximum value of the span of the dead band