142 34405A User’s and Service Guide
6 Specifications
To Calculate Total Measurement Error
The multimeter's accuracy specifications are expressed in the 
form: 
( % of reading + % of range ). In addition to the reading 
error and range error, you may need to add additional 
errors for certain operating conditions. Check the list below 
to make sure you include all measurement errors for a given 
function. Also, make sure you apply the conditions as 
described in the footnotes on the specification pages.
• If you are operating the multimeter outside the 
temperature range specified, apply an additional 
temperature coefficient error.
• For AC voltage and AC current measurements, you may 
need to apply an additional low frequency error or crest 
factor error.
34405A users guide.book  Page 142  Saturday, September 2, 2006  3:38 PM