Glossary
This glossary includes terms and definitions for IBM® Maximo® Calibration.
The following cross-references are used in this glossary:
- See refers you from a term to a preferred synonym, or from an acronym or abbreviation to the defined full form.
- See also refers you to a related or contrasting term.
To view glossaries for other IBM products, go to www.ibm.com/software/globalization/terminology.
analog device
An instrument that provides continuous results, such as
a pressure gauge.
as-found value
The calibration value of an instrument before the instrument
is adjusted.
as-left value
The calibration value of an instrument after the instrument
is adjusted.
asset function data
The calibration data for one or more functions that an asset
performs.
asset template
A record that specifies asset information that is shared
by multiple asset records. An asset template can be applied to existing
asset records or it can be used to generate multiple new asset records
for similar assets, such as a fleet of vehicles.
calibration
The comparison and adjustment of an instrument to a standard
of known accuracy.
calibration drift
The difference between the as left value of the previous
measurement compared to the as found value of the current measurement
for an asset.
calibration point
The calibration requirement for each asset function.
data sheet
A template that defines the specifications of an asset for
the calibration process.
deadband
The difference between the set point and reset point of
a discrete device.
desired output
The output that is required for a given input. For example,
0 psi input = 4 mA output.
direction
An indicator of whether a specified calibration point is
increasing or decreasing with respect to the reference point.
discrete device
An instrument that has only two settings, such as, a switch
that is either on or off or a valve that is either open or closed.
field resolution
The minimum number of required decimal places for a numeric
field value.
guardband method
A method that calculates the reliability of the calibration
of an asset to ensure that the asset meets a specified level of quality.
input
The process variable that is applied to a device under test.
input range
The upper and lower input values of an asset that is being
calibrated.
instrument
A device, such as a gauge, transmitter, or switch, that
is used to monitor and control plant processes.
loop calibration
A process that uses a set of grouped and calibrated instruments
to determine the pass or fail status of the calibration.
M&TE
measuring and test equipment (M&TE)
A calibrating tool that has a higher degree of accuracy
than the asset being calibrated.
nominal input
The user-specified input value for each analog calibration
point.
output
A reading of the input for a device under test.
output range
The upper and lower output values of an asset that is being
calibrated.
range-on-nominal
The user-specified acceptable limits for input values for
each calibration point.
reverse traceability
The ability to identify which assets were calibrated by
particular measuring and test equipment.
scaling factor
The conversion factor from output engineering units to user-specified
units.
set point
The input value at which a discrete device activates.
set point action
The wanted behavior of the discrete device, such as a switch,
at the specified set point, such as on or off.
standard
tolerance
An acceptable value or value range for a specified output
value.
traceability
The ability to identify the measuring and test equipment
that was used to calibrate an asset.