Sigma C4 manual Using Intelligent 2 Probe Control

air stream temperature, based upon this 60/ limit, would not be allowed to drop to -100/until the UUT core temperature had reached -40/

The same rules hold true for the high end of the UUT range except that the high differential limit (F30) is applied at the high limit of the UUT range (F28).

For UUT core temperatures between those limits, a proportional differential limit is calculated by the C4 based upon the limits specified at the extremes. For Example:

If the lower UUT limit (F27) is set to -100/and the the lower differential limit (F29) is set to 60/, and the upper UUT limit (F28) is set to 200/, and the upper differential limit (F30) 20/, the differential limit calculated for a temperature of -25/would be 50/.

Important: Intelligent 2 Probe Control, like normal control using probe 1 or probe 2, is constrained by the limits of the controller range and the chamber/platform operating temperature limits (F25 & F26). If a probe correction has been implemented for either or both probes (F17 - F24), those adjustments will be used as well. It is imcumbent upon the user to be certain that they are aware of these settings and their potential for interaction.

4.3 Using Intelligent 2 Probe Control

Once all of the necessary settings have been made and verified, using Intelligent 2 Probe Control is very easy. To use Intelligent 2 Probe Control, set the probe number to zero (0). Intelligent 2 Probe Control will be used in any mode, Local, Program, or Remote, if the probe number = 0.

40 C4 Manual Rev 7.5.2