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Keithley

Keithley 228

Programmable Voltage / Current Source
±100V Voltage Output Range
±2A Current Output Range
±(0.02% + 2mV) Voltage Programming Accuracy
±(0.2% + 2mA) Current Programming Accuracy
200W Maximum Power Output
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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)
Calibration Form Keithley 228

Repair Form Keithley 228
Maximum file size: 40MB

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Model228

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.

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