KB 23 / KB 23-UL (E3.1) 02/2019 page 44/87
11. Programming example of the Week Program Editor
11.1 Desired time function
From Monday to Friday the chamber shall maintain a temperature of +20 °C / 68°F, and during the week-
end (Saturday and Sunday) a temperature of +5 °C / 41°F.
This program shall automatically run during the whole year, i.e. it shall be programmed just once.
11.2 Proceeding overview
1. Settings in the user level (see chap. 10)
• Setting the safety controller to “Limit” and 3 °C above the maximum temperature value of the
program
The temperature set-point of the safety controller (over temperature protection class 3.1) is displayed
and can be changed. You can enter an absolute value in case of setting “limit”, or a relative value in
case of setting “Offset”. Select setting “Limit” and enter a value by 3 °C above the maximum value (i.e.,
23 °C / 73.4°F).
• Activating the week program timer
• Checking and, if necessary, setting the real time clock
2. Entering the set-points for the week program in “Fixed value entry mode” (see chap. 6)
Set-points for the example program:
SP 1 (night / weekend) = 5 °C / 41 °F
SP 2 (day / week) = 20 °C / 68 °F
3. Entering the time program to the week program editor (see chap. 7)
Program table for the example program:
Day of the week Time Channel 1 (temperature)
hh:mm AM PM ON (SP2) OFF (SP1)
Monday S1 06:00 ON
Friday S1 20:00 OFF
Make sure that no other shift points have been preprogrammed. If so, they must be deleted:
Set the time of the respective shift point to “ --:-- ” using key .
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