TDC4 Temperature Controller
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Gamry's TDC4™ Temperature Controller can control heating and cooling circuits as well as a recirculating bath. Temperature limits, step sizes, delay periods, etc. are all under user control. The TDC4™ is intended specifically for use with the Gamry Instruments CPT110™ Critical Pitting Temperature System. The TDC4™ is based on an Omega temperature controller which offers an impressive array of features. The TDC4 itself is controlled by your IBM PC™ compatible computer and the CPT110 Critical Pitting Temperature system via a standard 9 or 25-pin RS-232 serial port. The TDC4™ controls the temperature of an electrochemical cell by turning on and off a heat source that transfers heat to the cell. A cooler should also be used to remove heat from the cell. In either case, the TDC4™ switches AC power to the heater or cooler to control the direction of any heat transfer. The TDC4™ is a closed loop system, it measures the temperature of the cell using a platinum RTD, and uses feedback to control the heater and/or cooler. The TDC4 can be used in an on/off mode or a PID (Proportional, Integral, Derivative) mode. The on/off mode uses hysteresis parameters to control its switching, while the ID mode uses tuning parameters. Unlike the earlier TDC1™ , the TDC4™ does not require system calibration to achieve accurate temperature control. In addition, the TDC4 offers optional manual or automatic tuning capability. The TDC4™ is the ideal Temperature Control Unit to use with Gamry's Flexcell. |
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