15A / 20V Digital Temperature Controller comes with intuitive touchscreen front panel.

Press Release Summary:

15A / 20V Digital Temperature Controller is compatible with sensors such as thermistor, RTD, LM335 and AD590. Unit enables user to control and log data using a remote computer via USB or Ethernet options. Product offers IntelliTune® icon which is available in setpoint response and disturbance rejection optimization. Controller is suitable for biological sample control, laser diode or quantum cascade laser wavelength stabilization, imaging and material processing applications.

Original Press Release:

New - 15A / 20V Precision Temperature Control Instrument

The TC15 LAB (15A, 20V) is an ultra-stable digital controller for thermoelectrics and resistive heaters where tight temperature stability is required. Designed using the latest technology, stability better than 0.0009°C can be achieved with thermistors. Precision temperature control is required in myriad applications. This high-powered controller makes development of complex systems or sophisticated experiments possible in biological sample control, laser diode or quantum cascade laser wavelength stabilization, spectroscopy, remote sensing, imaging, aerospace, communications, materials processing, pharmaceutical manufacturing control, environmental sensing, electro-optics, and more.


This best-in-class temperature controller offers:

  • Excellent stability (0.0009°C) at 15 Amps up to 20 Volts to a thermoelectric or resistive heater
  • Intuitive touchscreen front panel – see setpoint, actual temperature, stability status all on one screen!
  • Extra safety – shut down your laser / QCL / active load if it goes outside user set temperature limits. Auxiliary sensor can monitor heat sink temperature.
  • Expanded Remote Command set – control and log data from a remote computer via USB (Test & Measurement Class) or Ethernet
  • Free LabVIEW VI executable for easy remote computer control
  • IntelliTune® optimizes PID control values to minimize time to temperature or reject external disturbances
  • IntelliTune® keeps adapting the PID control values as setpoint, tuning mode or sensor bias current is changed
  • Compatible with all sensors – thermistor, RTD, LM335, AD590.


Over and under temperature limits as well as positive and negative current limits can be set. If the sensor signal is lost or a short is detected at the thermoelectric, output current is disabled. If temperature limits are exceeded, a signal to the active laser load can be sent to disable its current. For example, connect the LD Shutdown BNC output to the Active Lock input on Wavelength’s QCL LAB driver and the QCL current will shut down if temperature limits are exceeded. An Auxiliary Sensor can be used to monitor the temperature of the system heatsink.


Instead of long, manual calculations to derive the optimal Proportional, Integral, and Derivative [PID] control terms for a load, press the IntelliTune icon and the instrument will automatically cycle through a characterization test to tune the control terms for best performance. Two methods of IntelliTune are available. Setpoint Response optimization will minimize the time to temperature for the load. Disturbance Rejection optimization is best when there will be significant changes to the ambient temperature or operating condition. This could be for a pulsing laser diode where the active heat load changes or a sample that is to be tested in changing ambient temperatures. For detailed exploration of IntelliTune, download Application Note AN-TC13: IntelliTune vs. Conventional Autotune.


OUTPUT CURRENT                         MIN           TYP             MAX                                         UNITS                   NOTES

Output Current                                                       15                                                                 A

Compliance Voltage Ratings                                 0-20                                                              V

Short Term Stability, 1-hour OFF ambient            0.0006                                                           °C                    25°C ambient

Short Term Stability, 1-hour ON ambient             0.0009                                                            °C                    25°C ambient

Long Term Stability, 24-hour OFF ambient            0.002                                                            °C                    25°C ambient

Temperature Coefficient                     5                    10             18                                          ppm / °C


NTC Thermistor Sensor Range Voltage                 0 – 10                                                           V

NTC Thermistor Bias Current Range                     10µ - 10m                                                      A                     Auto-ranging bias current

2, 3, or 4 Wire RTD Sensor Range                         100 - 1000                                                    Ω                     Auto-ranging bias current

Linear Voltage or Current Sensors                          Supported                                                                        Comparable to LM335 and AD590

Bias Current Accuracy                                               0.004                                                          %

Bias Current Temperature Coefficient                          10                                                         ppm / °C


AC Power Supply and Line Frequency              100-240 VAC (+/- 10%), 3 A, 50-60 Hz

Fuse for 100-240 V                                    3.15 A 250 AC Fast Blow (3.15 AH 250 V 5x20mm)    Replacement fuse: Littelfuse 02163.15 HXP

Max AC Line Power                                                       200                                                      W

FEEDBACK LOOP                                                                        Proportional / Integrator / Derivative (PID)

Take your research to the next level.

For more information, download the datasheet at www.teamWavelength.com/products/product.php?part=253.

Or contact us by phone at 406-587-4910 or email sales@teamwavelength.com.

A QuickStart video simulates controlling temperature for a spectroscopy application using a laser with an embedded 3A thermoelectric and a 10kΩ thermistor. It takes you through all the steps necessary to control the laser temperature quickly and easily.

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