Keithley TEC SourceMeter 2510, Service Manual, Page: 94 / 120

Models 2510 and 2510-AT Specifications A-3
Accuracy calculations
The information below discusses how to calculate accuracy for both TEC measurement and
thermal feedback element specifications.
Accuracy specifications are stated as follows:
Accuracy = ±(% of r offset)
As an example of how to calculate the actual limits, assume an output voltage of 5V. You
can compute the limits from one-year operating voltage accuracy specifications as follows:
Accuracy = ±(% of r offset)
±[(0.1% X 5V) + 4mV]
±(5mV + 4mV)
±9mV
Thus, the actual operating voltage range is: 5V± 9mV, or from 4.991 to 5.009V.
2510-902-01 (E - Mar 2010)(Service).book Page 3 Tuesday, March 16, 2010 2:33 PM