Optical Communication Applicat

Industrial Laser and Optical A


Analog Temperature Control Instrument


Product Introduction

Analog Temperature Control Instrument

The LFI3751 with Autotune PID is a high performance temperature control instrument. Drive up to ±5 A to either thermoelectrics (TECs) or resistive heaters (RH) with up to 8 V compliance. This instrument operates from AC (115 / 230, 50 or 60Hz). Expect stability as good as 0.001°C with thermistors. Even across ambient, this PID controller maintains precision temperature.



- High and Low Temperature Limits

- Heat and Cool Current Limits

- PID controller with Autotune minimizes overshoot and time to temperature

- RS232 or USB interface

- Free Labview drivers or Benchlink software

- Easy sensor calibration

- Compatible with multiple sensors

- Autoranging sensor bias current optimizes sensor feedback voltage

- Can operate with unipolar current for Resistive Heaters


Performance parameters

Power Supply: 115 / 230 VAC 60 / 50 Hz

Temperature Control Output Current: up to ±5 A

Temperature Stability: 0.001°C (10 kΩ thermistor at 25°C) over one hour

Stability across ambient: 0.001°C (10 kΩ thermistor at 25°C) over an hour ---- Ideal for

Setpoint Resolution: 12 bit D to A


Wavelength Electronics leads the laser control industry by simplifying advanced quantum cascade laser, laser diode, and thermal control for demanding electro-optical OEMs and researchers. For almost 20 years Wavelength Electronics has delivered instrument-level performance in small, cost-effective modules.

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