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Gamry Instruments TDC4 Operator's Manual

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TDC4 Temperature Controller
Operator's Manual
Copyright © 2010, 2018
Gamry Instruments, Inc.
All rights reserved.
Printed in the USA.
Revision 5.41
July 1, 2015

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Summary of Contents for Gamry Instruments TDC4

  • Page 1 TDC4 Temperature Controller Operator's Manual Copyright © 2010, 2018 Gamry Instruments, Inc. All rights reserved. Printed in the USA. Revision 5.41 July 1, 2015...

  • Page 2: Limited Warranty

    Limited Warranty Gamry Instruments, Inc. warrants to the original user of this product that it shall be free of defects resulting from faulty manufacture of the product or its components for a period of two years from the date of shipment.

  • Page 3: If You Have Problems

    If you write to us about a problem, provide as much information as possible. If you are having problems in installation or use of this TDC4 Temperature Controller, it would be helpful if you called from a phone next to the instrument, where you can change instrument settings while talking to us.

  • Page 4: Disclaimers

    Disclaimers Gamry Instruments, Inc. cannot guarantee that the TDC4 will work with all computer systems, heaters, cooling devices or cells. The information in this manual has been carefully checked and is believed to be accurate as of the time of printing. However, Gamry Instruments, Inc. assumes no responsibility for errors that might appear.

  • Page 5: Table Of Contents

    Setting up the TDC4 Operating Modes ....................2-5 Checking TDC4 Operation .........................2-5 Chapter 3 -- Use ................................3-1 Using Framework Scripts to Setup and Control Your TDC4 ............3-1 Thermal Design of Your Experiment ......................3-1 Tuning the TDC4 Temperature Controller -- Overview ..............3-2 When to Tune..............................3-2...

  • Page 6: Chapter 1 -- Safety Considerations

    Do not negate the protection of this earth ground by any means. Do not use the TDC4 with a 2 wire extension cord, with an adapter that does not provide for protective grounding, or with an electrical outlet that is not properly wired with a protective earth ground.

  • Page 7: Line Voltages

    TDC4 chassis to earth and thereby check the safety of your TDC4 installation. Line Voltages The TDC4 is designed to operate at AC line voltages between 90 and 240 VAC, 50 or 60 Hz. Unlike the older Gamry Instruments temperature controllers, no modification of the TDC4 is required when switching between US and international AC line voltages.

  • Page 8: Tdc4 Electrical Outlet Safety

    TDC4's controller module or a remote computer. For safety considerations, whenever the TDC4 is powered, you must treat these outlets as being on. Do not trust that the control signals for these outlets, when off, will remain off. Do not touch any wire connected to these outlets unless the TDC4 line cord has been disconnected.

  • Page 9: Electrical Transient Sensitivity

    Your TDC4 Temperature Controller was designed to offer reasonable immunity from electrical transients. However, in severe cases, the TDC4 could malfunction or even suffer damage from electrical transients. If you are having problems in this regard, the following steps may help: If the problem is static electricity (sparks are apparent when you touch the TDC4).

  • Page 10: Chapter 2 -- Installation

    Omega User's Guide to familiarize yourself with the operation of the temperature controller. Initial Visual Inspection After you remove your TDC4 from its shipping carton, you should check it for any signs of shipping damage. If any damage is noted, please notify Gamry Instruments, Inc. and the shipping carrier immediately.

  • Page 11: Physical Location

    Flexcell’s heating coil. AC Line Connection The TDC4 is designed to operate at AC line voltages between 90 and 240 VAC, 50/60 Hz. You must use a suitable AC power cord to connect the TDC4 to your AC power source.

  • Page 12: Power Up Check

    Power Up Check Once the TDC4 has been connected to an appropriate AC voltage source, you can turn it on to verify its basic operation. The power switch is a large rocker switch on the right side of the front panel.

  • Page 13: Usb To Com Converters

    The AC power for the heater is drawn from Output 1 on the rear panel of the TDC4. This output is a CEE 22 Standard V female connector. Electrical cords with the corresponding male connector are available worldwide.

  • Page 14: Cell Cables From The Potentiostat

    Appendix B list the factoryTDC4 settings. Checking TDC4 Operation To test the operation of the TDC4, you will run a simple checkout script provided with the CPT110 Critical Pitting Test System. The name of this script is "CHECK110.EXP". Use the procedure in the CPT110 Installation Manual to perform this checkout.
  • Page 15 2 - 6...

  • Page 16: Chapter 3 -- Use

    Thermal Design of Your Experiment The TDC4 is used to control the temperature of a electrochemical cell. It does so by turning on and off a heat source that transfers heat to the cell. Optionally, a cooler can be used to remove heat from the cell.

  • Page 17: Tuning The Tdc4 Temperature Controller -- Overview

    In this mode the TDC4 must be tuned to match it to the thermal characteristics of the system that it is controlling. It is shipped configured for PID control mode. You must explicitly change it to operate in any other control mode.

  • Page 18: Restoring Factory Settings

    Dead Band 14 seconds You should retune your TDC4 with your cell system before you use it to run any real tests. The system should be retuned whenever you make major changes in the thermal behavior of your system. Typical...

  • Page 19: Automatic Versus Manual Tuning

    Figure 3-1 Initial Dialog Box Displayed by a TDC4 Script 4) When you select Ok, the script will send configuration data to the TDC4. This process should take less than one minute. 5) At the end of the transfer process, a second dialog box, similar to Figure 3-2 appears.

  • Page 20: Auto Tuning The Tdc4

    Figure 3-3 Initial Dialog Box Displayed by the TDC4 Auto Tune Script 5) When you select Ok, the script will send data to the TDC4 that will start the auto tune process built into the TDC4. 6) At the end of the transfer process the TDC4 display starts displaying a blinking message AtUN on its front panel display.

  • Page 21: Manually Tuning The Tdc4

    Hook up the heater to the TDC4 Output 1 and to the cell. Hook up the RTD to the TDC4 RTD input. Place the RTD in the cell.
  • Page 22 Wait for the system to settle to a constant temperature. This can take several hours. 3) Data Acquisition for Tuning a) The TDC4 should be in SELF mode and the temperature must be stable. If the TDC4 Manual Tune.exp script is still running, terminate it using the F2-Skip button.
  • Page 23 Wait until some curvature is seen in the temperature versus time curve. Figure 3-1 shows a good quality curve. Select F2-Skip to terminate the experiment. g) Turn off the heater by setting the power to 0%. h) Close the CPT110 Runner Window by pressing F2-Skip. Graphing the Temperature versus Time Curve a) Run Microsoft Excel.
  • Page 24 d) The Excel window should eventually look something like Figure 3-6. Figure 3-6 TUNE.DTA File in Excel e) Highlight the first hundred points or so of the two data columns labeled Time and Temp1. These are the point to be included on the graph. You may have to experiment with the number of points that you graph.
  • Page 25 k) Select the default for each of the next dialog boxes. Your chart should something like Figure 3-7. In this figure, the Excel line drawing tool has been used to draw a line on the chart. This line is helpful in the next step of this procedure. Figure 3-7 Chart of TUNE.DTA File in Excel Calculation of Tuning Parameters...
  • Page 26 PRoP = 100% Output / 17% Output /°C = 5.8 °C In the TDC4, the integral reset rate, RESt, is specified in seconds. It is calculated from the deadtime in seconds using: RESt = L / 0.4 using the numbers above, RESt = 300 / 0.4 = 750 seconds...
  • Page 27 The values required by the TDC4 for tuning are PRoP, RESt, and RAtE. b) Enter the values calculated above into the TDC4 by accessing the CNFG, OUt 1, CtRL menu. c) Set the controller back to Automatic Mode by changing SELF mode back to dSbL.

  • Page 28: Appendix A - Rs232 Cabling And Configuration

    Appendix A - RS232 Cabling and Configuration The table below shows the pin-out of the TDC4’s RS232 port. Any pin not listed is not connected. Data directions are from the point of view of the TDC4. The TDC4 uses a classical 3-wire connection. The TDC4 does not use or generate any of the modem control signals (CTS, RTS, etc.).

  • Page 29: Appendix B - Default Controller Configuration

    Appendix B – Default Controller Configuration Framework script “TDC4 Total QC V5.exp” sets all of the defaults listed below. Controller Default Settings This table below shows the controller defaults in the form of menu driven settings on the controller. Menu...
  • Page 30 OUt1 SELF ENbL , dSbL ENbL RW 24 o°LO RW 27 o°HI RW 28 CtRL ON.OF , PId RW 0C ActN dRct , RVRS RVRS RW 0C AUto (if PId was selected) ENbL , dSbL dSbL RW 0C ANtL ENbL , dSbL ENbL RW 0C StRt...
  • Page 31 COMM C.PAR bAUd 300_, 600_, 1200, 2400, 4800, 9600, 19.2K 2400 RW 10 PRtY NO, ODD, EVEN RW 10 dAtA 7-bit, 8-bit 7 bit RW 10 StOP 1-bit, 2-bit 1 bit RW 10 M.bUS NO, YES RW 1F _LF_ NO, YES RW 1F ECHO NO, YES...

  • Page 32: Index

    Index TDC4, 3-1 Visual Inspection, 2-1 AC line cord, 1-1 AC Outlet Fuses, 1-2 auto tune, 3-4 Cabling, 2-3 Cell Cables, 2-4 cooler, 2-4 electrical transients, 1-3 fuse cooler, 2-4 heater, 2-4 heater, 2-4 modem cable, 2-3 Omega CSi8D, 2-5...

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