Lake Shore DRC-93C

The Lake Shore DRC-93C is a microprocessor-based temperature controller delivering three-term analog PID control for cryogenic research and industrial temperature regulation. It accommodates one or two interchangeable sensor input cards and provides dual five-digit displays with direct temperature readout in Kelvin, Celsius, or Fahrenheit when paired with compatible sensors like the DT-470 Series. ## Technical Specifications Control Architecture • Three-term PID control with proportional (GAIN), integral (RESET), and derivative (RATE) parameters, each adjustable from 0.1 to 99 • 16-bit analog-to-digital converter with 100 microvolt resolution Sensor Inputs & Display • Accepts one or two input cards; cards may differ in type for multimodal sensing • Compatible with silicon sensors (9210-3, 9220-3) or proprietary Gallium-Aluminum-Arsenide sensors • Optional 8229 Scanner Card extends capacity to 6 sensors • Dual five-digit displays; 0.01 K resolution above 100 K, 0.001 K below 100 K • Optional High Resolution Setpoint mode: 0.01 K above 40 K, 0.001 K below 28 K (DT-470 series) • Direct sensor voltage display to 100 microvolt resolution; ohms and nanofarads also supported Setpoint Control • Standard setpoint settability: 0.1 degrees • Optional High Resolution Setpoint: 0.01 degrees above 100 K, 0.001 degrees below 100 K • Five-digit setpoint entry in temperature units; range determined by input card Heater Output • Maximum output: 50 watts into 50 ohm load • Digital bar graph displays power as percentage of selected range • Rear-panel rheostat enables maximum power limiting • Optional W60 output stage: 60 watts into 25 ohm load Programming & Control • Internal program memory: up to 99 steps • Math functions integrated • IEEE-488 interface standard for remote control of all front-panel functions and dual-input data access ## Key Features • Flexible sensor input architecture with mixed card types • Dual independent sensor displays with selectable units • High-resolution temperature setting and monitoring for low-temperature applications • Field-adjustable heater power limiting ## Typical Applications Cryogenic material characterization, helium liquefier operation, dilution refrigerator control, materials science research, industrial temperature management in low-temperature environments. ## Compatibility & Integration Standard IEEE-488 GPIB interface enables networked instrument control and automated data logging. Compatible sensor ecosystems include DT-470 diode sensors and silicon resistance thermometers.