Chapter 2: Installation
17
Connecting the TDC5 to an RTD Probe
The TDC5 must be able to measure the temperature before it can control it. The TDC5 uses a platinum RTD to
measure the cell temperature. A suitable RTD is supplied with the TDC5. This sensor plugs into adapter cable
supplied with your TDC5:
Contact Gamry Instruments, Inc. at our US facility if you need to substitute a third-party RTD into a CPT
system.
Place the active end of the RTD as close as possible to the working electrode in your cell. This minimizes the
effect of thermal gradients on the control accuracy.
Cell Cables from the Potentiostat
A TDC5 in your system does not affect the cell cable connections. These connections are made directly from
the potentiostat to the cell. Please read the your potentiostat
’
s Operator
’
s Manual for cell cable instructions.
Setting up the TDC5 Operating Modes
The PID controller built into the TDC5 has a number of different operating modes, each of which is configured
by means of user-entered parameters.
The TDC5 is shipped with default settings appropriate for heating and cooling a Gamry Instruments FlexCell
using a 300 W heating jacket and a solenoid-controlled cold-water flow for cooling.
Appendix A lists the factory TDC5 settings.
Please refer to the Omega documentation supplied with your TDC5 for information about
the various controller parameters. Do not change a parameter without some knowledge of that parameter
’
s
effect on the controller.
