Chapter 2: Installation
12
Differences Between an Omega CS8DPT and a TDC5
Hardware Differences
A Gamry Instruments TDC5 has one
addition compared to an unmodified
Omega CS8DPT: A new connector is
added to the front panel. It is a
three-pin connector used for a three-
wire 100
Ω
platinum RTD. The RTD
connector is wired in parallel with
the input terminal strip on the
Omega CS8DPT. You can still make
use of the full range of input
connections.
Firmware Differences
The firmware configuration settings for the PID (proportional, integrating and derivative) controller in the TDC5
are changed from the Omega defaults. See Appendix A for details. Basically, Gamry Instruments
’ co
ntroller
setup includes:
Configuration for operation with a three-wire 100
Ω
platinum RTD as the temperature sensor,
PID tuning values appropriate for a Gamry Instruments Flexcell
™
with a 300 W heating jacket and active
cooling through the Flexcell’s heating coil.
AC Line Connection
The TDC5 is designed to operate at AC line voltages between 90 and 240 VAC, 50 or 60 Hz. You must use a
suitable AC power cord to connect the TDC5 to your AC power
source (mains).
Your TDC5 was shipped with a USA-type AC power input cord. If you
need a different power cord, you may obtain one locally or contact
Omega Engineering Inc. (
http://www.omega.com
).
The power cord using with the TDC5 must terminate with a CEE 22
Standard V female connector on the instrument end of the cable and
If you make other input connections:
•
Be careful to avoid connecting two input devices, one to the 3-pin Gamry connector and one to
the terminal strip. Unplug the RTD from its connector if you connect any sensor to the input
terminal strip.
•
You must reconfigure the controller for the alternate input. Consult the Omega manual for
additional details.
