9.4 Temperature Display Hold
The 7102 has a display hold function which allows action of an external switch to
freeze the displayed temperature and stop the set-point from scanning. This is
useful for testing thermal switches and cut-outs. The instrument must be
powered off before attaching thermal switches or cut-outs. This section explains
the functions available for operating the temperature hold feature. An example
follows showing how to set up and use the hold feature to test a switch.