6 Specifications and Characteristics
110 U3402A User’s and Service Guide
Accuracy Specifications
Transfer Accuracy
Transfer accuracy refers to the error introduced by the multimeter due to
noise and short
–term drift. This error becomes apparent when comparing two
nearly
- equal signals for the purpose of "transferring" the known accuracy of
one device to the other.
One-Year Accuracy
These long–term accuracy specifications are valid at the calibration
temperature (T
cal
) ± 5 °C temperature range. These specifications include the
initial calibration errors plus the multimeter's long
–term drift errors.
Temperature Coefficients
Accuracy is usually specified at the calibration temperature (T
cal
) ± 5 °C
temperature range. This is a common temperature range for many operating
environments. You must add additional temperature coefficient errors to the
accuracy specification if you are operating the multimeter at 0 °C to 18 °C and
28 °C to 50 °C temperature range (the specification is per °C).
Temperature Coefficient = add ± 0.15 x [the applicable accuracy)/°C]
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