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C4 Manual Rev 7.5.2
1.3 Custom Features / Interchangeability WARNING
Each Sigma Systems C4 Controller has been custom configured for the chamber or
platform with which it was supplied or for which it was specified. Many units
include special wiring for custom control applications, precision fail-safe additions,
non-standard voltages, external unit power control, etc. Units that may appear
to be identical may be internally quite different. Do not interchange
controllers between controlled devices (chambers and/or platforms)
unless you are certain that the controllers have been identically
constructed.
Failure to heed this warning voids your warranty, may cause unpredictable
controlled device behavior that could cause damage to persons or property, pose a
risk of fire, or cause other problems. If you must move controllers between
controlled devices, please contact the Sigma technical support department for
assistance and advice.
1.4 Release 7.5.2 Firmware
This manual is specifically written to cover the features of Release 7.5.2 firmware
for the Sigma Systems Model C4 controller. The features of this release firmware
are largely backward compatible with all CC-3 and earlier CC-3.5 & C4 firmware.
This release fixes a number of bugs found in the CC-3.5 interim release versions
6.8.6, 6.9.0, and 7.0.0. It also adds a number of new features. See Section 1.5.
Note: This release implements probe temperature correction on a per
probe basis. Interim CC-3.5 releases implemented this feature on a global
basis.
Sigma highly recommends that all users update to the latest firmware release.
Contact Sigma Technical Support. See Section 9.10.
Note: This release is not available as an upload file for serial port firmware
updating of your controller. Due to non-backward compatible change in the way
some data is stored internally, this version must be installed using a PROM
obtained from Sigma Systems.