Keithley 6485 User Manual

1-14 Getting Started Model 6485 and 6487 User’s Manual
OPER Toggles the Vsource state (the Vsource state is displayed by an indicator). (Configured
using the CONFIG >> OPER key sequence.)
V-SOURCE ¹ Increments voltage source value
V-SOURCE ƒ Decrements voltage source value
3 Operation keys
COMM Use to control and modify communication properties (GPIB or RS-232).
DISP Use to turn display on/off.
TRIG Trigger measurement(s). Takes 6487 out of
idle state. Use also to configure trigger
properties.
LIMIT Use to perform and create limit tests
.
DIGITS Use to set display resolution.
RATE Use to select measurement rate.
ß and © Us
e to control cursor position for making selections or editing values.
SAVE Use to save present setup to a memory location.
SETUP Use to restore setup to either GPIB or factory defaults, or
to a user memory location.
Also use to modify properties of power on defaults to either GPIB or factory defaults,
or to a user memory location.
STORE Use to start buffer and modify the number of readings to store.
RECALL Use to display stored readings (including ma
ximum, minimum, peak-to-peak, average,
and standard deviation). The ¹ and ƒ RANGE keys scroll through the buffer, and the ß
or © key toggles between reading number, reading, voltage, and timestamp.
AZERO Use to control auto zero function (on / off).
DAMP Use to control damping function (on / off).
EXIT Use to cancel selection and move
back to measurement display.
ENTER Use to accept selection and move to next choice or
back to measurement display.
4 Range keys
¹ Use to select the next higher measurement range. Also use to modify the upper auto-
range limit.
ƒ Us
e to select the next lower measurement range. Also use to modify the lower auto-
range limit.
AUTO Enables/disables autorange.
5 Handle
Pull out and rotate to desired position.
6 VOLTAGE SOURCE OPERATE indicator
This indicator will turn on when the voltage source is in operate (voltage source output turned on). It
will also turn on for about 0.7 sec at power-on to indicate that it is functional.
WARNING Hazardous voltage may be present on the rear panel V-SOURCE
OUTPUT terminals when the operate indicator is on.

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)