Keithley 248
High-Voltage Supply, 5kV

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Product Overview

The programmable Keithley 248 High Voltage Supply offers reversible polarity, excellent regulation, low output voltage ripple, and flexible operation. Two front panel digital displays provide accurate readings of voltage and current output. A separate display simplifies setting output values precisely. TheKeithley 248 High Voltage Supply's output can be set using the front panel controls, over the standard IEEE-488 interface, or via a remote analog voltage.

A source with low output ripple is crucial when using sensitive measurement instruments to characterize high resistance or resistivity. When operated without a filter, the Keithley 248 High Voltage Supply is capable of sourcing up to ±5000V DC at a maximum output current of 5mA DC with an output ripple of <0.002%. Two selectable filters are available to reduce output ripple in order to optimize operation for lower noise by  trading off longer rise and discharge times. Applications of the Keithley 248 High Voltage Supply include high-voltage resistivity and resistance testing, insulation resistance testing, high-voltage component testing, monitoring breakdown effects, and I-V measurements.

Features and Specifications of the Keithley 248 High-Voltage Supply include:

• Source voltages up to 5kV, negative or positive polarity
• Up to 5mA compliance current
• Low output ripple for precision sourcing
• Two selectable filters
• IEEE-488 programmable
• Programmable voltage and current limits
• Compact, half-rack design