Keithley 2231A-30-3 Triple Channel DC Power Supply
The Keithley 2231A-30-3 is an advanced Triple Channel DC Power Supply engineered to meet the demanding needs of benchtop applications. With a total output power of 195W, it is capable of energizing a diverse array of circuits and devices. This versatile power supply features two channels that can deliver up to 30V at 3A each, complemented by a third channel that provides up to 5V at 3A, making it the perfect solution for a wide range of testing scenarios.
This model stands out due to its linear-based design, which ensures minimal noise, with less than 5mVp-p noise per output. Voltage and current settings boast basic accuracies of 0.06% and 0.2%, respectively. The load voltage and current readback also achieve the same high levels of accuracy, instilling confidence in the precision of the voltages and currents supplied to your device-under-test (DUT).
Each output on the Keithley 2231A-30-3 operates independently, allowing for seamless programming and control of three distinct power supply functions within a single instrument. Its unique configuration enables users to power both analog and digital circuitry of printed circuit boards or complete devices simultaneously, a significant advantage in electronic testing environments.
Designed for versatility, each output can also power circuits on different ground references. The outputs are isolated, meaning the low connection on each output does not interact with the others, allowing for testing across three separate circuits or powering isolated circuits as needed. Additionally, the outputs are not grounded, enabling the unit to easily support both floating and grounded circuits.
The isolation capability allows one output to effectively serve as a negative source when connecting its high terminal to a common reference point in a bipolar circuit, while another output can connect its low terminal to the same reference point. Utilizing the Tracking function facilitates concurrent adjustments to both 30V channels, maintaining identical output magnitudes for versatile applications.
For higher power requirements, users can easily combine the two 30V channels. By wiring them in series, the output can reach up to 60V, or by wiring in parallel, it can deliver up to 6A. The intuitive display of the Keithley 2231A-30-3 conveniently shows total output, simplifying the monitoring of both voltage and current, and eliminating potential confusion during operation.
Key Features and Specifications:
- Two 30V/3A channels and one 5V/3A channel; total output of 195W.
- Load Regulation:
- Line Regulation:
- Ripple and Noise (20Hz–20MHz):
- Setting Resolution:
- Setting Accuracy:
- Readback Resolution:
- Readback Accuracy:
- Isolation Voltage: Output to chassis: up to 240V (DC + peak AC with AC limited to a max of 3Vpk-pk and a max of 60Hz).
- Isolation Voltage, Output to Output: any output can be isolated up to 240V (DC + peak AC with AC limited to a max of 3Vpk-pk and a max of 60Hz).
- Tracking and Combination Modes:
- Tracking Mode: maintains the ratio on the two 30V output channels when activated.
- Series Mode: combine V1 + V2 to deliver up to 60V when CH1 and CH2 are wired in series, with a meter reading the combined voltage.
- Parallel Mode: combine I1 + I2 to deliver up to 6A when CH1 and CH2 are wired in parallel, with a meter reading the combined current.
