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Keysight Technologies Manuals
Multimeter
U1231A
Service manual
Keysight Technologies U1231A Service Manual
Handheld digital multimeter
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Safety Symbols
Safety Considerations
Measurement Category
Environmental Conditions
Regulatory Markings
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
Product Category
Sales and Technical Support
Table of Contents
1 Calibration Procedures
Keysight Calibration Services
Closed Case Calibration
Calibration Interval
Other Recommendations for Calibration
Recommended Test Equipment
Basic Operating Test
Backlight Test
Display Test
Calibration Process
Test Considerations
Performance Verification Tests
Calibration Security
Unsecuring the Instrument for Calibration
To Unsecure the Instrument from the Front Panel
Calibration Security Code Operation
To Change the Calibration Security Code
To Reset the Calibration Security Code to Its Factory Default
Using the Front Panel for Adjustments
Adjustment Considerations
Adjustment Procedure
Valid Adjustment Input Values
Functional Tests
Vsense Functional Test
Exiting the Adjustment Mode
Calibration Count
Calibration Error Codes
2 Service and Maintenance
Troubleshooting
Checking the Fuse
Testing the Fuse
Fuse Replacement
Replacing the Fuse
Returning the Instrument for Service
Replaceable Parts
To Order Replaceable Parts
Types of Service Available
Extended Service Contracts
Obtaining Repair Service (Worldwide)
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Quick Links
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Calibration Procedures
2
Performance Verification Tests
3
Troubleshooting
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Keysight U1231A, U1232A,
and U1233A Handheld
Digital Multimeter
Service Guide
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This manual is also suitable for:
U1233a
U1232a
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