Calibration Procedures 3
Keysight 34420A Service Guide 107
627 Hardware overload comparator failed
630 Bias Current DAC test failed
Table 3-6 Self-test error messages
Error Error message
Table 3-7 Calibration error messages
Error Error message
701 Cal security disabled by jumper
702 Cal secured
703 Invalid secure code
704 Secure code too long
705 Cal aborted
706 Cal value out of range
707 Cal signal measurement out of range
709 No cal for this function or range
710 Full scale correction out of range
720 Cal DCV offset out of range
722 Cal RES offset out of range
723 Cal FRES offset out of range
730 Precharge DAC convergence failed
731 A/D turnover correction out of range
737 Bias current selfcal failed
738 Charge compensation selfcal failed
739 Injected current selfcal failed
740 Cal checksum failed, secure state
741 Cal checksum failed, string data
742 Cal checksum failed, DCV correction
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