Data Sheet Switching DC Power Supplies Models 1685B, 1687B & 1688B Features and Benefits Automatic CV/CC crossover operation B&K Precision models 1685B, 1687B, and control modes. Save up to three different presets 1688B are laboratory grade switching mode of voltage and current values for quick recall. For Lightweight and compact DC power supplies with high current output in remote control, an analog remote control Rotary encoder control for precise voltage and a small, lightweight form factor. These power terminal is accessible on the rear, or use the USB current setting supplies provide various configurations of output interface to communicate with the power supply Save up to 3 user-defined voltage and current voltage and current, and feature rotary encoder via PC software or remote commands. presets for quick recall control knobs, which make setting voltage and PC software for remote control and external current levels fast and precise. Its dual action These features make the 1685B Series suitable push button allows the user to easily set both for a wide range of applications including timed programming coarse and fine, voltage and current levels. production testing, telecommunications, R&D, Analog remote control function electronic field service, and university labs. USB interface In addition to its constant voltage (CV) and Front panel auxiliary output constant current (CC) modes, these high efficien- Overvoltage, overtemperature, and overload cy DC power supplies offer preset and remote protection Outputs / Model 1685B 1687B 1688B Variable Output Voltage 1 - 60 V 1 - 36 V 1 - 18 V Variable Output Current 0 - 5 A 0 - 10 A 0 - 20 A Technical data subject to change www.bk precision.com B&K Precision Corp. 2012Switching DC Power Supplies Models 1685B, 1687B & 1688B Designed to Make Your Flexibility & Performance Work Easier Fully Protected Have peace of mind knowing that these power Front Panel supplies come with built-in OVP (overvoltage LED indicators for Rotary encoder knobs for protection), OTP (overtemperature protection), constant voltage and quick and precise setting Bright, dual LED displays constant current modes of voltage and current and OLP (overload protection) circuitry. These protections help prevent serious damage to equipment in case of power supply failure Custom Presets Quickly use common voltage and current settings with a flip of the Recall preset switch. Up to three different presets can be set and recalled. Rear control indicator Auxiliary output terminal Analog Remote Control Capability Use the included connector to wire up to an external variable DC voltage source or variable Rear Panel resistor to remotely control the power supplys output voltage and current or to turn the Mode selection Main output switch Cooling fan terminal Recall preset switch output on/off. PC Connectivity Control your instrument through remote control PC software or use programming USB device port Analog remote commands to communicate with your control terminal instrument. 2 www.bk precision.com