ILX Lightwave LDT-5910B – Thermoelectric Temperature Controller

The ILX Lightwave LDT-5910B is a microprocessor-based thermoelectric temperature controller designed for precision thermal management of laser diodes, detectors, and sensitive electronic components. Built on PID control architecture, it delivers short-term stability of 0.005 °C and long-term stability of 0.01 °C over 24 hours, making it suitable for demanding R&D and production environments requiring frequency stabilization and infrared detector cooling.

Technical Specifications Temperature Control

Control range: −99 °C to +150 °C

Short-term stability (1 hour): 0.005 °C or better

Long-term stability (24 hours): 0.01 °C or better

Display resolution: 0.1 °C

Maximum temperature reading: 200 °C Output Power

Maximum output: 4 A at 4 V compliance

Maximum power: 16 W

Current limit range: 0 to 10.0 A with ±20 mA accuracy

Independent heating and cooling current limits

Output noise/ripple: < 500 µA Operating Conditions

Operating temperature: 0 °C to 40 °C

Storage/transport temperature: −40 °C to 70 °C

Maximum humidity: < 80% RH, non-condensing

Maximum altitude: 3000 m

Mains supply tolerance: ±10% of nominal voltage

Line voltage selection: 110 V or 230 V via internal jumpers

Key Features

Fully programmable PID control loop with auto-tune and preset values

Large green LED display for easy readout

Configurable current booster supporting up to 10.0 A measurement

Class I equipment (grounded), Pollution Degree II

Optional GPIB/IEEE-488.2 interface for remote programming and automated control

Compatibility & Integration Supported Thermal Sensors

Thermistors (10 kΩ)

AD590 series temperature sensors

LM335 series temperature sensors Thermoelectric Modules Fully configurable for various TE cooler modules with independent current limit control ensuring safe operation across different device types.