Low Noise and Excellent Regulation 0.01% load and line regulation keep the outputs steady. Low normal mode noise assures clean power for precision circuitry while the low common mode current provides isolation from power line current injection. Remote Interface All models come standard with GPIB and RS-232 interfaces. You can program both voltage and current. In addition, you can monitor the output terminals for voltage and current, while a query command lets you read the programmed voltage and current. Front Panel Operation The intuitive interface allows you to monitor both voltage and current simultaneously for any one output from the front panel on an easy to read vacuum fluorescent display. A knob allows you to quickly adjust the output at the resolution you need for precise and reliable results. You can save and recall up to three front-panel setups. An output On/Off button disconnects the output terminals.