The Model 3040 Temperature Controller provides a 32 W bipolar output for operation with thermoelectric (TE) coolers. Full 16-bit control and characterization of the TE module and temperature sensor is attainable via the IEEE-488 or RS-232 interfaces. LabVIEW drivers are included with the computer interfaces as a standard feature.
All pertinent TEC parameters I_TE, V_TE, and temperature sensors (°C, W, Amp, or Volts) are measured and presented on the two line alphanumeric LCD display. All standard temperature sensors (including thermistors, Platinum RTD, AD590/592 and LM335 IC sensors) are supported without the need for additional interface units. Sensor calibration constants are easily programmed for direct readout in °C.
A proportional–integral (P–I) control circuit is implemented in the Model 3040 that meets all the temperature stabilization requirements for laser diode users. We have validated that a derivative (D) term is not needed for laser diode applications. TE module manufacturers concur that the increased complexity in circuitry and initial setup procedure is not justified unless very large thermal loads need to be moved quickly.
During operation the front panel inputs can be disabled by pushing the LOCKOUT Dial button located below the control knob. This prevents any inadvertent changes in the output ...

The Model 3040 Temperature Controller provides a 32 W bipolar output for operation with thermoelectric (TE) coolers. Full 16-bit control and characterization of the TE module and temperature sensor is attainable via the IEEE-488 or RS-232 interfaces. LabVIEW drivers are included with the computer interfaces as a standard feature.
All pertinent TEC parameters I_TE, V_TE, and temperature sensors (°C, W, Amp, or Volts) are measured and presented on the two line alphanumeric LCD display. All standard temperature sensors (including thermistors, Platinum RTD, AD590/592 and LM335 IC sensors) are supported without the need for additional interface units. Sensor calibration constants are easily programmed for direct readout in °C.
A proportional–integral (P–I) control circuit is implemented in the Model 3040 that meets all the temperature stabilization requirements for laser diode users. We have validated that a derivative (D) term is not needed for laser diode applications. TE module manufacturers concur that the increased complexity in circuitry and initial setup procedure is not justified unless very large thermal loads need to be moved quickly.
During operation the front panel inputs can be disabled by pushing the LOCKOUT Dial button located below the control knob. This prevents any inadvertent changes in the output by accidental movement of the control knob.
Protection features include I_TE Limit, Hi and Lo Temperature Limits, Sensor Open and TE Open Detection. In addition, shielded cables are available to prevent noise pickup either by the output lines or the sensor inputs. Any noise picked up by the sensor input lines is amplified resulting in undesirable temperature oscillations.