The Keithley 2510-AT Autotuning TEC SourceMeter SMU is a single-channel instrument that combines precision voltage/current sourcing, measurement, and temperature control into a half-rack width unit. It delivers 50 W of power output and automates TEC optimization through a modified Ziegler-Nichols algorithm, eliminating manual P-I-D tuning and ensuring stable thermoelectric cooler operation across temperature-sensitive applications.
Technical Specifications
Power and Control
• Power output: 50 W
• Control system: Software-based, fully digital P-I-D loop
• Autotuning: Yes—modified Ziegler-Nichols algorithm automatically determines P-I-D coefficients
Temperature Range and Stability
• Setpoint range: −50°C to +225°C
• Operating limits: −50°C minimum, +250°C maximum
• Setpoint resolution: ±0.001°C
• Short-term stability: ±0.005°C (24 hours at 25°C ±0.5°C)
• Long-term stability: ±0.01°C (30 days at 25°C ±0.5°C)
Sourcing and Measurement
• Maximum current source/measure: 5 A
• Maximum voltage source/measure: 10 V
• Hardware current limit: 1.0 A to 5.25 A ±5%
• Software voltage limit: ±0.5 V to 10.5 V ±5%
• Measurement accuracy (1 year, 23°C ±5°C): Resistance ±(2.0% + 0.1 Ω), Voltage ±(0.1% + 4 mV), Current ±(0.4% + 8 mA), AC Resistance ±(0.10% + 0.02 Ω)
Sensor Support
• Thermistor ranges: 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ with 2.5 mA excitation (±1.5% accuracy)
• RTD support: 100 Ω, 1 kΩ
• Temperature sensor range: −50°C to +250°C
• All sensors: α, β, δ calibration coefficients settable
• Thermistor measurement accuracy: 0.04 + 0.07 Ω²
– Key Features
• Four control modes: Constant Peltier Temperature, Constant Peltier Voltage, Constant Peltier Current, Constant Thermistor Resistance
• Software linearization for thermistor compensation
• Integrated SourceMeter concept combines power supply, current source, and precision voltmeter
– Typical Applications
Laser diode temperature stabilization, IR CCD array cooling, cooled photodetector thermal management, thermal-optic switch operation during test and production.
– Compatibility and Integration
Supports industry-standard thermistor, RTD, and IC temperature sensors with user-configurable calibration parameters.
