Binder MKF 115, Operating Manual

Page: 35 / 115

MKF+ MKFT (E3.2) 07/2017 page 35/115
5.5 Turning on the chamber
Turn on the rear power switch (20) at least one hour before operating the chamber.
Set the main power switch (3) in position I. The pilot lamp shows the chamber is ready for operation.
Observe a delay time of approx. 30s between turning Off and again On the main power switch
(3). Otherwise an initialization problem might occur (display showing e.g. “–1999”).
The refrigerating and dehumidification functions are available only one hour after turning on the rear pow-
er switch (preheating phase). This is indicated by the notification “1H PREHEAT PHASE” on the controller
display. After 1 minute the message “WATER TANK EMPTY” appears on the controller display. You can
reset this message only after the 1-hour preheating phase.
Note that the chamber is in stand-by mode when the main power switch is in position I and the controller
display is dark. Turn on the chamber by pressing any button. When turned on, the chamber functions in
the operating mode entered before turning off. In Manual Mode (HAND), the controller regulates tempera-
ture and humidity to the last entered set-points, and in Program Mode (AUTO) it regulates temperature
and humidity to their set-points reached during previous program operation.
Structure of toggling between Idle Mode / Manual Mode / Program Mode:
Idle Mode
HAND EXIT
Menu Program start Manual Mode (HAND)
Program Mode (AUTO)
or
EXIT
For control reasons the refrigeration machine starts with a delay time. The refrigeration ma-
chine also turns off with a 5 minutes delay. This explains why the compressor may remain
operating also during positive temperature jumps.