creep

change in load cell output occurring with time while under constant load and with all environmental conditions and other variables also remaining constant

apportioning factor ()

value of a dimensionless fraction expressed as a decimal (for example, 0.7) representing that portion of an error observed in the (weighing) instrument which is attributed to the load cell alone

durability error

difference between the intrinsic error after a period of use and the initial intrinsic error of a measuring instrument

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expanded uncertainty

quantity defining an interval about the result of a measurement that may be expected to encompass a large fraction of the distribution of values that could reasonably be attributed to the measurand (OIML G 1-100 Guide to the Expression of Uncertainty in Measurement) [7]

fault

difference between the error of indication and the intrinsic error of a measuring instrument (For notes, refer to the OIML V 1:2013).

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fault detection output

electrical representation issued by the load cell indicating that a fault condition exists

hysteresis error

difference in load cell output readings for the same applied force between the reading obtained by increasing the load from minimum load (), and the reading obtained by decreasing the load from maximum load ()

initial intrinsic error

intrinsic error of a measuring instrument as determined prior to performance tests and durability evaluations

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load cell intrinsic error

error resulting from a load cell, determined under reference conditions

maximum permissible error (MPE)

extreme value of measurement error, with respect to a known reference quantity value, permitted by specifications or regulations for a given measurement, measuring instrument, or measuring system

(For notes, refer to the OIML V 2-200:2012).

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measurement error

measured quantity minus a reference quantity value.

(For additional notes, refer to the OIML V 2-200:2012).

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measured quantity (value)

quantity value representing a measurement result

(For notes, refer to the OIML V 2-200:2012).

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non-linearity

deviation from the average of the values of load cell signals from a straight line through zero force applied and maximum force applied

repeatability error

difference between load cell output readings taken from consecutive tests under the same loading and environmental conditions of measurement

resolution

smallest change in a quantity being measured that causes a perceptible change in the corresponding indication

(For notes, refer to the OIML V 2-200:2012).

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significant durability error

durability error exceeding the value specified in the applicable Recommendation

(For notes, refer to the OIML V 1:2013).

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significant fault

fault exceeding the applicable fault limit value

(For notes, refer to the OIML V 1:2013).

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span stability

capability of a load cell to maintain the load cell output of the load cell’s measuring range over a period of use within specified limits

temperature effect on minimum dead load output

change of the signal output under minimum dead load due to a change in ambient temperature

temperature effect on sensitivity

change in sensitivity due to a change in ambient temperature

type approval mark

mark applied to a measuring instrument certifying its conformity to the approved type

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