The Sorensen QRC40 is a DC power supply for laboratory, industrial, and educational applications. It delivers stable, regulated power with adjustable voltage and current settings to support diverse testing and load-powering tasks. The unit operates in constant voltage mode, constant current mode, or automatic crossover, switching between regulation types based on load conditions. Front-panel ten-turn potentiometers enable high-resolution adjustment. An optional LCD digital panel meter displays voltage and current simultaneously. Standard remote programming supports voltage and resistance control in both modes, with available remote current limit and overvoltage protection (OVP) programming. Remote sensing is available to compensate for voltage drops in power leads.
Technical Specifications
Electrical Performance
• Line and load regulation combined: 0.25% of Imax
• Current stability: 0.15% of maximum
• Transient response: 50 ms for 50% load change
• Operating modes: Constant voltage, constant current, automatic crossover
Input
• Input voltage: 208 VAC ±10%, 220 VAC ±10%, or 230 VAC ±10%
• Frequency: 50/60 Hz operation without derating
Output
• Adjustable voltage and current via potentiometer control
• Optional LCD digital panel meters for voltage and current display
– Key Features
• Adjustable current limiting with overload and short-circuit protection and automatic recovery
• Overvoltage protection (OVP): crowbar type, adjustable 5–110% of rated output, locally or remotely programmable
• Over-temperature shutdown protection
• Remote voltage and current limit programming
• Remote sensing capability for lead-drop compensation
• Compact design
– Typical Applications
Laboratory benchtop testing, industrial equipment powering, and educational demonstrations requiring stable, adjustable DC output with integrated protection.
– Compatibility & Integration
Units support parallel or series connection to achieve increased current or voltage output configurations.
