Keithley 6485 User Manual

Model 6485 and 6487 User’s Manual Getting Started 1-15
7 Display annunciators
* (asterisk) Readings being stored in buffer.
(more) Indicates additional selections are available.
AUTO Autorange enabled.
BUFFER Recalling readings
stored in buffer.
ERR Questionable reading or invalid cal step.
FAST Fast (0.1 PLC) reading rate selected.
FILT MEDIAN and/or AVERAGE filter enab
led (also DAMPING enabled).
LSTN Instrument addressed to listen over GPIB.
MATH mX+b, m/X+b, or log10 calculation enabled.
MED Medium (1 PLC) reading rate selected.
REL Relative enabled for present measurement function.
REM Instrument in GPIB remote mode.
SLOW Slow reading rate selected; 6
PLC for 60Hz or 5 PLC for 50Hz.
SRQ Service request over GPIB.
STAT Displaying buffer statistics.
TALK Instrument addressed to talk over GPIB bus.
TIMER Timer controlled triggering in use.
TRIG External triggering (GPIB
or trigger link) selected.
MON Zero correct enabled.
SCAN Voltage sweep armed and ready to run.
OCOMP Voltage source in compliance.

Keithley 6485 Specifications

General

Model	Keithley 6485
Category	Picoammeter
Input Impedance	>10^14 Ohms
Voltage Burden	<200µV
Accuracy	0.4% of reading
Voltage Source Range	Not Applicable
Voltage Source Resolution	Not Applicable
Voltage Source Accuracy	Not Applicable
Interface	IEEE-488
Power Requirements	100V to 240V AC, 50/60Hz
Dimensions	89 mm high x 214 mm wide x 369 mm deep (3.5 in x 8.4 in x 14.5 in)