Factors Affecting Accuracy; Measurement Accuracy Example - Campbell CR300 Series Product Manual

which is contained in variable PT(14). This is suitable accuracy for the application, so a settling
time of 1400 µs is determined to be adequate.

17.11.6 Factors affecting accuracy

Accuracy describes the difference between a measurement and the true value. Many factors
affect accuracy. This topic discusses the effect percent-of-reading, offset, and resolution have on
the accuracy of an analog voltage measurement. Accuracy is defined as follows:
accuracy = percent-of-reading + offset
where percents-of-reading and offsets are displayed in the
(p. 187).
NOTE:
Error discussed in this section and error-related specifications of the data logger do not
include error introduced by the sensor, or by the transmission of the sensor signal to the data
logger.

17.11.6.1 Measurement accuracy example

The following example illustrates the effect percent-of-reading and offset have on measurement
accuracy. The effect of offset is usually negligible on large signals.
Analog measurement specifications
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