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Keithley 6485 User Manual

Keithley 6485
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Model 6485 Picoammeter Instruction Manual Getting Started 1-15
Default settings
The Model 6485 can be restored to one of five setup configurations; factory default
(FACT), three user-saved (USR0, USR1 and USR2), and bus default (GPIB). As shipped
from the factory, Model 6485 powers up to the factory default settings. Factory default set-
tings provide a general purpose setup for front panel operation, while the bus default
(GPIB) settings do the same for remote operation. Factory and GPIB default settings are
listed in Table 1-2.
The instrument will power up to whichever default setup was saved as the power-on setup.
NOTE At the factory, the factory default setup is saved into the USR0, USR1, and USR2
setups.
Front panel setup operation
To save a user setup
1. Configure Model 6485 for the desired measurement application.
2. Press SAVE to access the save setup menu.
3. Use the or key to display the desired memory location
(0 = USR0, 1 = USR1, 2 = USR2).
4. Press ENTER.
NOTE Saved setups should not be used in DDC mode and will not be recalled upon
power up (in DDC mode).
To restore any setup
1. Press SETUP to display the restore menu:
2. Use the or key to display the desired setup (FACT, USR0, USR1, USR2, or
GPIB).
3. Press ENTER.
To select power-on setup
1. Press CONFIG and then SETUP to display the power-on menu.
2. Use the or key to display the desired setup (FACT, USR0, USR1, USR2, or
GPIB).
3. Press ENTER.

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Keithley 6485 Specifications

General IconGeneral
ModelKeithley 6485
CategoryPicoammeter
Input Impedance>10^14 Ohms
Voltage Burden<200µV
Accuracy0.4% of reading
Voltage Source RangeNot Applicable
Voltage Source ResolutionNot Applicable
Voltage Source AccuracyNot Applicable
InterfaceIEEE-488
Power Requirements100V to 240V AC, 50/60Hz
Dimensions89 mm high x 214 mm wide x 369 mm deep (3.5 in x 8.4 in x 14.5 in)

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