Test equipment AC power sources

Agilent 6812B: troubleshooting and error codes

The ServiceForge knowledge base holds 4 documented symptoms for the Agilent 6812B, with 4 ranked causes, 12 diagnostic checks with test points and expected values, and 2 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Calibration: Auxiliary Output Option 026 high voltage

Calibration procedure for the Auxiliary Output Option 026 of the Agilent 6812B AC power source. Verification procedures should be performed first to determine if recalibration is needed.

Ranked causes

1. Calibration required per maintenance schedule or after verification failure (unknown)

First check

Verify auxiliary output voltage

Test point: Auxiliary output terminals
Expected: 0-26 V rms at resistive load
Tools: Voltmeter

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Calibration: Auxiliary Output Voltage

Adjust auxiliary output voltage reading to match DVM measurement

Ranked causes

1. Auxiliary output voltage requires calibration (unknown)

First check

Enable calibration mode by entering password

Test point: Display
Expected: CAL ON

3 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Output phase resolution high voltage

Verification and calibration of output phase resolution for the Auxiliary Output Option 026.

Ranked causes

1. Output phase resolution out of tolerance (unknown)

First check

Measure output phase resolution

Test point: Auxiliary output terminals relative to main output
Expected: 0.1 degree steps
Tools: Oscilloscope

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Output voltage resolution high voltage

Verification and calibration of output voltage resolution for the Auxiliary Output Option 026.

Ranked causes

1. Output voltage resolution out of tolerance (unknown)

First check

Measure output voltage resolution

Test point: Auxiliary output terminals
Expected: 10 mV steps
Tools: Voltmeter

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Error codes

Code	Meaning	Trigger	Severity
`CAL DENIED`	Calibration function access prevented	Attempt to enter calibration mode when internal switch set to prevent calibration changes	warning
`OUT OF RANGE`	Measured or entered value exceeds acceptable range	Entered calibration data value outside permissible limits	error

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Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.