Keysight Technologies 3458A Guide D'utilisation page 436

D Optimizing Throughout and Reading Rate
and the convenience offered to the user by having these analysis functions
available with a simple programming command.
Task grouping and sequence
Further gains in test throughput can be obtained by tailoring the measurement
sequence to group similar measurements together, thus minimizing the number of
instrument configuration changes between measurements. Custom programs
written without the aid of automatic program generators can be so structured.
Program generators are usually optimized for ease of programming and offer a
simplistic approach to the testing task that lets you choose limits for each group
of tests but do not necessarily group the tests for the fastest throughput.
Functional test management software like the FTM300 allows the tests to be
customized for throughput and still provides 70% of the overhead programming
like Statistical Quality Control (SQC) and inventory management.
System uptime
Longer system up-time also means higher test system throughput. The 3458A
multimeter performs a complete self-calibration of all functions, including AC,
using high-stability internal standards. This self- or auto-calibration eliminates
measurement errors due to time drift or temperature changes in your rack or on
your bench for superior accuracy. When it's time for periodic calibration to
external standards, simply connect a precision 10 V DC source and a precision 10
kW resistor. All ranges and functions, including AC, are automatically calibrated
using precision internal ratio transfer measurements relative to the external
standards. (The subject of calibration is treated in detail in Product Note 3458A-3)
A system's up-time is also increased as a result of the increased reliability of its
components. the 3458A's reliability is a product of Keysight's "10 X" program of
defect reduction. Through environmental, abuse, and stress testing during the
design stages of product development, Keysight has reduced the number of
defects and early failure in its instruments by a factor of ten over the past ten
years.
436 Keysight 3458A User's Guide