Permanent Program; Switch Off Warning - Thermo Scientific 3906 Operating Manual

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These programming steps are single switching times by date. Extra switching times do
not disable switching programs with lower priority.
Adjust the switching function (AT on, AT off, AT cycle, AT pulse) and the date on which the
extra switching time will be executed. The following options are additionally available for
the Extra switching time:
Without special function: The switching time will be applied each year fixed to the

entered date.
With weekday function: The switching date takes into account the yearly shift of the

weekday of the month. (e.g.: The switching date is always the second Saturday in
February for the current and the following years).
With 1x-Function: The switching time will be applied only once.


Permanent Program

The permanent by date program (Holiday program) is a permanently on or off status of the
channel for the programmed dates. The number of switching times is only limited by the
total number of free memory locations. Adjust channel, switching function and the
duration by date.The following options are additionally available for the permanent by date
program:
1. Without special function: The switching time will be applied each year fixed to the
entered date.
2. With Easter function: The time switch takes into account the yearly shift for Easter
holiday for following years and corrects the activation dates (For programs relative to
Easter, Pentecost Carnival, Ascension).
3. With 1x-Function: The program will be applied only once.

Switch off Warning

Within menu Options and submenu Switch off warning, the early warning switch off
function can be activated and deactivated:
Warning No: The function remains inactive.

Warning Yes: The function is activated and the switch off is signaled in advance (For

illumination purposes, the warning is signaled by the flashing of the light according
DIN 18015-2 = warning to avoid sudden darkness).
An activated warning affects all channels and all OFF switching times.
Handling and Control |
Chapter 8
Model 3900 Series | 8-15