Keithley 6487 Reference Manual

B-4 Status and Error Messages Model 6487 Reference Manual
+107
+108
+109
+110
+111
+200
+300
+301
+303
+305
+306
+310
+315
+408
+414
+500
+501
+502
+507
+508
+509
+510
+511
+512
+513
+514
+515
+602
+603
+604
+605
+606
+607
Reading overflow
Buffer available
Buffer full
Input overvoltage
OUTPUT interlock asserted
Standard events:*
Operation complete
Operation events:*
Device calibrating
Device in A-V Ohms
Device sweeping
Waiting in trigger layer
Waiting in arm layer
Re-entering the idle layer
V-source compliance detected
Questionable events:*
Questionable calibration
Command warning
Calibration errors:
Date of calibration not set
Next date of calibration not set
Calibration data invalid
Measurement offset data invalid
Measurement gain data invalid
Not permitted with cal locked
Not permitted with cal un-locked
Voltage offset not converging
Current offset not converging
10V Positive Vsource Offset
50V Positive Vsource Offset
500V Positive Vsource Offset
Lost data errors:
GPIB address lost
Power-on state lost
DC calibration data lost
Calibration dates lost
GPIB communication language lost
Vsource calibration data lost
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
EE
Table B-1 (c o nt.)
Status and error messages
Number Description Event

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%