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ACV & DCV 4 wire input.
Selectable 2 and 4-wire
measurement.
Unavailable
4-wire sense measurement support
improved accuracy when calibrating
calibrators with 4 wire sense output.
Remote switched GUARD
Terminal
IEEE controlled Manual Switch
IEEE control of GUARD terminal helps fully
automate calibration without need for
manual switching.
Read rate
High Speed - 150 readings/sec @
5.5 digit resolution
High Speed - 100,000
reading/sec @ 4.5 digit
resolution
High read rates are useful for some ATE
applications where accuracy is not of high
priority.
Calibration technique
Individual Function and Range
calibration.
Artifact Calibration & Individual
Function and Range
calibration.
Both techniques have their merits. 8508A
and associated calibration technique
provides full results traceability. ‘As found’
data is difficult to determine using 3458/HFL
‘artifact’ calibration.
Artifact calibration provides a low cost
solution for adjustment.