Keithley 2303, User Manual

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Getting Started 1-9
NOTES “ON” indicates that the output is turned on. With the output turned off, “OFF” is dis-
played. See Section 10 for details.
For the Pulse Current and Long Integration display modes, “NO PULSE” is
displayed if the output is off or pulses are not detected (output on). See Sections 3 and
4 for details.
When a change is made that affects the readings being taken, dashes are displayed
instead of readings. The dashes remain until a valid reading for the new condition is
taken.
Any one of the four display modes can be the power-on default. Use the SAVE SETUP
item of the MENU to save the selected display mode in memory, and use the POWER
ON SETUP item to specify the power-on setup (see “Setups” under “Default set-
tings” for details).
Default settings
The power supply can be set to power-on to the factory default conditions (RST defaults) or
to user-saved setup conditions. The factory default conditions are listed in Table 1-1.
Table 1-1
Factory defaults (RST)
Setting RST default
Output value settings:
Voltage (V)
0.000V
Current (A) 0.2500A
Output state operate Off
Display type Actual V and I
GPIB address No effect (factory set to 16)
GPIB output format No effect (factory set to Keithley
and Exponential)
Current range 5 amps (Auto Range off)
Integration rate 1.00 PLC
Average readings 1
Power on setup No effect (factory set to RST)
Current limit mode Lim
Output relay No effect (after power cycle, set
to zero)
Pulse current:
High time
33 µsec
Low time 33 µsec