Keithley 6485 User Manual

5-8 Relative, mX+b, m/X+b (reciprocal), and log Model 6485 Picoammeter Instruction Manual
Programming example — mX+b
This command sequence performs a single mX+b calculation and displays the result on
the computer CRT:
*RST 'Restores RST defaults.
CALC:FORM MXB 'Selects mX+b calculation.
CALC:KMAT:MMF 2 'Sets scale factor (M) to 2.
CALC:KMAT:MBF 0.5 'Sets offset (B) to 0.5.
CALC:STAT ON 'Enables calculation.
INIT 'Perform one measurement and
'calculate mX+b.
CALC:DATA? 'Request mX+b result.

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)