© 2005
WTC3293-14000 BO
ARD
WITH DISPLA
Y
WTC3293-14400-A Rev E
GENERAL DESCRIPTION:
Simply stable temperature control. Wire your
thermoelectric cooler and thermistor to the
board with the cable provided. Add the
appropriate DC power supply and indicate the
expected 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
and display your thermistor temperature.
Watch the LED tree to see “over / under
temperature” or “stable at setpoint” status.
Enable the output current and watch the
temperature quickly lock in on the setpoint.
Figure 1
Top View
WTC3243 Thermoelectric Temperature
Controller Board with Display
WTC3293-14000 Series
FEATURES:
• Low noise, maximum temperature stability
commercially available
• Display thermistor temperature directly - no
tables to convert resistance to temperature
• LED indicator shows over temperature,
stable at setpoint, or under temperature
status
• Adjust setpoint with a 12-turn potentiometer
or an external voltage
• Control temperature using a 10k
Ω
thermistor
• Fixed resistors set Proportional Gain,
Integrator Time Constant, and
thermoelectric current limits
• Enable/Disable Output Current Switch
• Includes Output Cable & DC Power Supply
• Works with a wide range of thermoelectrics
WTC3243 INCLUDED
August, 2005
