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L4451A and L4452A Calibration Procedures A
L4400 User’s Guide 249
Time Required for Calibration
The L4451A and L4452A can be automatically calibrated under computer
control. With computer control you can perform the complete calibration
procedures and performance verification tests in less than 30 minutes
once the instruments are warmed-up (see “L4451A and L4452A
Performance Test Considerations”).
Automating Calibration Procedures
You can automate the complete verification and adjustment procedures
outlined in this chapter. You can program the instrument configurations
specified for each test and then enter readback verification data into a
test program and compare the results to the appropriate test limit
values.
The instruments must be unsecured prior to initiating the calibration
procedures (see “Calibration Security”).
Recommended Test Equipment
The test equipment recommended for the performance verification and
adjustment procedures is listed in Table A-1. If the exact instrument is
not available, substitute calibration standards of equivalent accuracy.
Table A-1. Recommended Test Equipment
Application Recommended Equipment Accuracy Requirements
Analog Output L4451A Agilent 34401A, 34410A, or
34411A
<1/5 L4451A 24-hour voltage /
current specification
Analog Output L4452A Agilent 34401A, 34410A, or
34411A
<1/5 L4452A 24-hour voltage /
current specification