6220 Keithley Current Source New Wayne Kerr Connection cables (Trigger Link and

Connection cables (Trigger Link and communication) are listed under Accessories Supplied

so the difference between models is the available output range rather than the way the supply is operated or programmed

Shield assembly for the output terminal connections

Photodetector such as a photo-multiplier and photo-transistor

AC TRMS Leakage current with optional external clamp

6220 Keithley Current Source New Wayne Kerr Connection cables (Trigger Link andKey Features at a Glance DC current source: 100 fA to 105 mA sourcing and sinking Output impedance >1014 on the 2 nA 20 nA ranges Voltage compliance programmable 0. 1 V to 105 V in 10 mV steps 65,000 point source memory for comprehensive sweep execution Model 220 emulation mode for drop in legacy replacement RS 232, GPIB, Trigger Link, and digital I O interfaces built in Reconfigurable triax output for application specific guarding Maximum trigger