Table 2-1 Data Checked On Power-Up; Table 2-2 Power-Up Error Messages - Keithley 2002 User Manual

Table 2-1
Data checked on power-up
Data
IEEE-488 address
Power-on default
Calibration constants
Calibration dates
Instrument setups
Reading buffer
Note: STD is standard memory, MEM1 is memory option #1, MEM2 is memory option #2.
Table 2-2
Power-up error messages
Message
Error +515,
Calibration dates lost
Error +514,
DC calibration data lost
Error +513,
AC calibration data lost
Error +512,
Power-on state lost
Error +511,
GPIB address lost
Error +510,
Reading buffer data lost
Error -314,
Save/recall memory lost
Notes:
1. Any of these error conditions may occur the first time a unit is turned on or after replacing the firmware.
2. Error +510, Reading buffer data lost, applies to units with optional memory.
3. Error +512, Power-on state lost, may occur the first time the unit is powered-up after replacing the MEM2 memory option with MEM1.
Type of storage
Electrically-erasable PROM
Electrically-erasable PROM
Electrically-erasable PROM
Electrically-erasable PROM
1 in electrically-erasable PROM
4 more in non-volatile RAM
9 more in non-volatile RAM
(Volatile RAM)
Non-volatile RAM
Action
The cal dates are set to factory default values, but they are not stored into EEPROM.
To do this, perform a comprehensive calibration.
DC cal constants are set to factory default values, but they are not stored into
EEPROM. To do this, perform a comprehensive calibration.
AC cal constants are set to factory default values, but they are not stored into
EEPROM. To do this, perform a comprehensive calibration.
Power-on defaults are reset to factory defaults (bench) and stored into EEPROM.
GPIB address is reset to factory default (16) and stored into EEPROM.
The reading buffer controls are reset to factory defaults, but they are not stored into
NVRAM. To do this, store readings in the buffer.
Instrument setup is reset to bench defaults and stored into EEPROM.
Front Panel Operation
Memory option
STD, MEM1, MEM2
STD, MEM1, MEM2
STD, MEM1, MEM2
STD, MEM1, MEM2
STD, MEM1, MEM2
MEM1
MEM2
STD
MEM1, MEM2
2-3