User manual

U1271A/U1272A Service Guide XI
Table of Contents
1 Calibration Procedures
Agilent Calibration Services 2
Closed case calibration 2
Calibration interval 2
Other recommendations for calibration 3
Recommended Test Equipment 4
Basic Operating Test 5
Backlight test 5
Display test 5
Current terminal input test 6
Calibration Process 8
Test considerations 8
Input connections 9
Performance Verification Tests 10
Calibration Security 18
Unsecuring the Instrument for Calibration 19
To unsecure the instrument from the front panel 19
To change the calibration security code 20
To reset the calibration security code to its factory default 21
Using the Front Panel for Adjustments 23
Adjustment considerations 23
Valid adjustment input values 24
Adjustment procedure 27
Exiting the adjustment mode 29
Calibration Count 30
Calibration Error Codes 31