Keithley 2700 Service Manual page 158

B-22 Calibration Reference
Table B-5 (Continued)
Calibration error summary
Error number and description
+451, "1 vac dac error"
+452, "10 vac dac error"
+453, "100 vac dac error"
+454, "100m vac zero error"
+455, "100m vac full scale error"
+456, "1 vac zero error"
+457, "1 vac full scale error"
+458, "1 vac noise error"
+459, "10 vac zero error"
+460, "10 vac full scale error"
+461, "10 vac noise error"
+462, "100 vac zero error"
+463, "100 vac full scale error"
+464, "750 vac zero error"
+465, "750 vac full scale error"
+466, "750 vac noise error"
+467, "Post filter offset error"
+468, "1 aac zero error"
+469, "1 aac full scale error"
+470, "3 aac zero error"
+471, "3 aac full scale error"
+472, "Input time constant error"
+473, "Frequency gain error"
+474, "1K Ohm Ioff Ocomp FS error"
+475, "10K Ohm Ioff Ocomp FS error"
+476, "Temperature Cold Cal error" *
+500, "Calibration data invalid"
+513, "AC calibration data lost"
+514, "DC calibration data lost"
+515, "Calibration dates lost"
+518, "Card calibration data lost" *
+519, "Card calibration dates lost" *
+610, "Questionable calibration"
*Model 7700 card only.