Keithley 6487 Reference Manual

17
Routine Maintenance
• Setting line voltage and replacing line fuse — Describes how to set the line volt-
age properly and replace the line fuse with the correct rating.
• Front panel tests — Covers testing the front panel keys and the display.

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%