Keithley 228

| Attribute | Value |
|---|---|
| Voltage Output Range | ±100V |
| Current Output Range | ±2A |
| Voltage Programming Accuracy | ±(0.02% + 2mV) |
| Current Programming Accuracy | ±(0.2% + 2mA) |
| Maximum Power Output | 200W |
| Output Compliance | Voltage and current compliance settable independently |
| Interface | IEEE-488 (GPIB) |
| Voltage Resolution | 1mV |
| Current Resolution | 100µA |
| Power Requirements | 105–125V or 210–250V AC, 50/60Hz |
Keithley 228 Options:
- 228 - 2286 - Safety Output Connector
- 228 - 2288 - Fixed Rack Mounting Kit
- 228 - 2289A - Slide Rack Mounting Kit
- 228 - 7007-1 - Shielded IEEE-488 Cable, 1m (3.2 ft)
- 228 - 7007-2 - Shielded IEEE-488 Cable, 2m (6.5 ft)
- 228 - 7008-3 - IEEE-488 Cable, 0.9m (3 ft)
- 228 - 7008-6 - IEEE-488 Cable, 1.8m (6 ft)
| Model | 228 |
|---|
The Keithley 228 Voltage/Current Source is a versatile four-quadrant source/sink capable of delivering up to 100W in any quadrant, supporting both constant voltage and constant current modes. It includes front panel and IEEE control, external modulation, a built-in monitor, and a 100-point data memory for storing voltage, current, and dwell time values. Output terminals are on a quick disconnect board for convenient maintenance and setup.
Features flexible front panel input via keypad or display modify function, allowing precision adjustments with carry, borrow, and auto-repeat capabilities. Perfect for lab and automated environments requiring programmable precision power.
Testwall can supply the used Keithley 228, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keithley 228.





