Additional Features:

• Display: 0.5 in LED digits, 4½-digit signed mantissa, 1-digit signed exponent
• Maximum Allowable Common Mode Voltage (Output or Output Common to Chassis): 250 V RMS, DC to 60 Hz
• Increment/Decrement: automatic, manual or trigger modes
• Range of Dwell Times: 50 ms to 999.9 s
• Output Load: Output load must be non-inductive
• External Trigger: TTL-compatible External Trigger Input and Output
• Output Connections: Teflon® insulated 2-lug triax connector (specialty connector 30JR121-1) for output; five way binding posts for GUARD, OUTPUT COMMON and CHASSIS GROUND; BNC (chassis isolated) connectors for EXTERNAL TRIGGER INPUT and OUTPUT
• All connections on rear panel

The Keithley 224 programmable current source was designed for general purpose bench or system use. The INCREMENT/DECREMENT function is manual or automatic, and selectable dwell times provide stepped ramp capabilities.