Keithley 6485 User Manual

D-14 DDC Emulation Commands Model 6485 Picoammeter Instruction Manual
Figure D-4
Status byte format
MSB B7 B6 B5 B4 B3 B2 B1 B0 LSB
0=Data
Busy
Reading
Done
Data
Store
Full
Reading
Overflow
Data Conditions
B5 = 0
Error Conditions
B5 = 1
Not
in
Remote
IDDC IDDCO
1=Error1=SRQ

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)