Description
Wavelength Electronics WTC3293 2.2 A Temperature Controller
Wrapped around the precision WTC3243 temperature controller, it is configured for use with a TCS610 thermistor. Wire your thermoelectric cooler and thermistor to the board with the cable provided. Add the appropriate DC power supply and indicate the input voltage on the jumper. With the output disabled, adjust the on-board 12-turn trimpot and watch the setpoint temperature change on the 4-digit display. Switch to Actual
temperature and display your thermistor temperature. Watch the LED tree to see “over/under temperature” or “stable at setpoint” status. Enable the output current and The green LED on the In-Range indicator lights when actual temperature is within 0.05°
C of the setpoint. If the actual temperature exceeds the setpoint, the upper LED will light. If it is below the setpoint temperature, the lower LED will light. The WTC3293-14001 has been designed to work with various thermoelectrics driving up
to ±2.2 Amps. It operates with +7 V, +9 V, or +12 V input voltage. Free, effective, and responsive technical support is available to simplify integration of Wavelength products into your OEM design. Standard product can be easily modified to
meet your application requirements
Display Set or Actual Temp in °C
LED indicates over / under / on temp
Includes cable, heatsink, fan
Onboard enable / disable switch
Onboard setpoint adjust
Drive ±2.2A of TEC or RH current
Single supply operation: +7, +9 or +12V
Heat and cool current limits
Ultrastable PI control
Small size: 2.25″ x 2.7″ x 2.7″
Ultrastable PI control
Drive 2.2A of TEC or RH current
Linear Stability: 0.0009C
Small size: 1.3″ x 1.28″ x 0.313″
Heat and cool current limits
Supports Thermistors, RTDs, IC sensors
Single supply operation: +5 V to +30 V
Adjustable sensor bias current
14 pin DIP PCB mount
Monitor Actual Temperature
The WTC3243 temperature controller is easily configured for any design. A circuit calculator tool speeds selection of external component values (see Design Tools tab). Virtually any type of temperature sensor can be used with it and a built in sensor bias current source simplifies use with resistive temperature sensors. The Proportional Gain (P) and Integrator Time Constant (I) are set by external resistors and can be modified to optimize temperature overshoot and stability.
Other features offer added flexibility. Independent heat and cool current limits are set by single resistors. An onboard reference voltage simplifies potentiometer control of the temperature setpoint. You can also choose to operate remotely with an external setpoint voltage. Monitor actual sensor voltage at pin 9.
The robust and reliable WTC3243 is designed into electro-optical systems, airborne instrumentation, Raman spectrometers, and medical diagnostic equipment. The WTC is particularly suited to applications where temperature is scanned across ambient.
Wavelength provides the free LabVIEW Virtual Instrument executable file for use with the WTC3293 Evaluation Board. Click here to download. The executable VI also requires the LabVIEW Run-Time Engine, available for free download from the National Instruments website: http://joule.ni.com/nidu/cds/view/p/id/2534/lang/en, as well as the DAQmx Viewer also available for free from the NI website: .
The source code for the LabVIEW Virtual Instrument module is available for free in case you wish to modify the program yourself. Alternately, Wavelength can customize the Virtual Instrument to suit your application. Contact a Sales Engineer for assistance.
WTC3243 vs. WHY5640:
The WTC3243 incorporates remote voltage control and temperature monitor. The WHY5640 does not.
The WTC3243 supports AD590 and LM335.
The WHY5640 requires external circuits to operate anything other than resistive sensors.
Two or more WHY5640s can be used together for more output current.
If you do not need all the features of the WTC3243, the WHY5640 is a lower cost solution.
NOTE: The WHY5640 and WTC3243 do NOT have the same pin configuration.
Specifications
Supply Range: +5 to +30 V
Temperature Control Output Current: up to 2.2 A
Temperature Stability: 0.0009C (10 kO thermistor at 25C) over one hour
Stability across ambient: 0.002C (10 kO thermistor at 25C) over an hour Ideal for scanning applications
Setpoint vs. Actual Temperature Accuracy: 2 mV typical
Features:
-Heat and Cool Current Limits
-PI controller minimizes overshoot and time to temperature
-Compatible with multiple sensors
-Adjustable sensor bias current optimizes sensor feedback voltage
-Can operate with unipolar current for Resistive Heaters
Maximum Power Dissipation: 9 W
Heatspreader Temperature Rise: 30C / W without external heatsinking
14 pin DIP PCB Mount size: 33 x 32 x 8 mm
Manufacturer:Electronic Components
Datasheet:wtc3243.pdf
