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Wavelength electronics lfi-3525 temperature controller
Wavelength Electronics LFI-3525 Temperature Controller
The 3500 series advanced design offers an unprecedented combination of features, performance, and value. A variety of sensors including thermistors, IC sensors (AD590 and LM335), and RTDs are supported. A versatile I/O analog interface is provided at no additional cost. Connect a standard 12 V fan to the 3500 series and cool your TE's heatsink. The fast PID control circuitry provides low noise, stable performance for even the most stringent temperature control situations. With four proportional gains, two integral time constants, and an optional derivative time constant, the PI/PID control loop can stabilize virtually any load. The 3500 series utilizes Wavelength's "Smart Integrator" circuit to reduce overshoot and improve settling time. Extensive protection features are incorporated into the 3500 series to protect your thermoelectric and temperature controlled device from damage. Easy to read LEDs indicate temperature limit, open thermoelectric, and sensor open/short conditions. Temperature and current limits are readily adjustable from front panel trimpots. For additional safety, use the analog interface to disable an LFI-4500's laser diode driver output if the temperature controller output is turned off for any reason. Interlock any combination of LFI-3500 series temperature controllers or LFI-4500 series laser diode drivers without additional hardware. This unit has the following features:
* Ultra stable temperature control (< 0.002 C)
* Compatible with Thermistors, AD590, LM335, and RTDs
* Wide temperature control range from - 60 C to > +150 C
* Easy to adjust operating temperature and current limit
* Linear, low noise, bipolar current source
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