Self-Test Errors

The self-test command (*TST?) will return a non-zero number if self-test fails. Self-test error descriptions are retrieved using the TEST:ERRor? <test_number> command. Use the number returned by self-test as the <test_number> to obtain the description of the failure.

Calibration Errors

Zero Calibration

Gain Calibration

CAL:ZERO[<channel>]:ALL? returns a non-zero number if zero calibration fails. For example, a return value of 0x0021 (binary value 100001) indicates that the 62 mV range and the 64V range failed. A “1” in the range position indicates a failure (range = 256, 64, 16, 4, 1, 0.25, 0.062).

The error string returned by SYST:ERR? will contain information about the failure on the highest range (for 0x0021, binary value 100001, information is returned on the 64V range).

A zero non-converging error usually indicates some internal problem with the instrument. It is recommended you run the self-test (*TST command) to identify any instrument problems.

Calibration value (CAL:VALue <voltage>) not within 85% to 98% of full scale.

You have entered a voltage with the CAL:VALue command that is not between 85% and 98% of the full scale range. For example, a calibration value between 0.85 and 0.98 is required on the 1V range

Gain Non-converging error

A gain non-converging error usually indicates some internal problem with the instrument. It is recommended you run the self-test (*TST command) to identify any instrument problems. If you use an external calibration source, you may have set the correct CAL:VALue but did not connect the calibration source to the digitizer’s input for the channel you are calibrating. The calibration source may still be connected to the last channel calibrated.

Appendix C

Digitizers Error Messages 149

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Agilent Technologies E1563A, E1564A user manual Self-Test Errors, Calibration Errors, Zero Calibration Gain Calibration

E1563A, E1564A specifications

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