Model 3700 TEC Controller provides a 336 W bipolar output for operation with thermoelectric (TE) coolers and replaces legacy Model 3150. At the unit's heart, DSP based controls allow for PID settings with fast settling times. This feature combined with sound electronics design and quality components results in great temperature stability and higher reliability. Computer interface is possible via a USB terminal. LabVIEW drivers are included with the computer interface as a standard feature. All pertinent TE parameters, ITE, VTE, temperature sensor (° C, R, Amp, or Volts) are measured and presented on the four line alphanumeric LCD display. All standard temperature sensors including thermistors, platinum RTD, AD590/592 and LM335 IC sensors are supported without an additional interface needed. Sensor calibration constants are easily programmed for direct readout in ° C. PID control is implemented in the Model 3700 that meets all the temperature stabilization requirements for laser diode users. During operation, the front panel controls can be disabled to prevent any changes in the output by accidental misadjustment of the control knob. Protection features include: ITE Limit, Hi and Lo Temperature Limits, Voltage Limits, Sensor Open and TE Open Detection. To prevent noise pickup, either by the output lines or the sensor inputs, shielded cables are also available.
Please refer to our Laser Diode Instrument Selection Guide to review the complete Newport offering.
| Model | 3700 |
|---|---|
| Instrument Type | Laser Diode Temperature Controller |
| TE Current | -14.00 to +14.00 A |
| TEC Short-Term Stability (1 h) | 0.0009 °C |
| TEC Output Long-Term Stability (24 h) | 0.0019 °C |
| TEC Ripple/Noise (rms) | <1 mA |
| ITE Current Resolution | 1 mA |
| Output Power | 336 W |
| Temperature Coefficient | < 0.0005 °C/°C |
| TEC Current Limit Accuracy | ± 0.3 % FS |
| Display Controls | Brightness, contrast (optimizes viewing angle) |
| Display Type | 4-line by 20 character alphanumerical, and seven segment display |
| Display Backlighting | Green LED |
| Computer Interface | USB2.0 |
| Mainframe Weight | 11.2 lb (5.1 kg) |
- Temperature Tuning Application
- Measurements performed on a Newport Laser Mount 764H-110 with an Oclaro BW-series laser running at 10W optical power. The Laser mount temperature was set at 21°C over 1 hour. Laser mount temperature is stable at 21°C with a variation of ± 0.0004ºC despite the ambient change of 2 °C.
- Measurements performed on a Newport Laser Mount 764H-110 with an Oclaro BW-series laser running at 10W optical power. The Laser mount temperature was set at 21°C over 24 hours. Laser mount temperature is stable at 21°C with a variation of ± 0.00077°C despite the ambient change of near 3 °C.
- Innovative hardware and firmware design allows 3700 to output 14A over the full compliance range (0-24V). Compare this with competition.
