MK (E2.1) 10/2014
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5.2 Operating modes
The MB1 program controller operates in 3 modes:
Idle Mode
The controller is not functional, i.e., there is no heating. The fan is off.
Manual Mode
(Fixed value operation)
(HAND)
The controller operates as a fixed-point control, i.e., a temperature set-
point can be defined, which is then maintained (chap. 8).
Program Mode (AUTO)
An entered temperature program is run (chap. 9).
The MB1 program controller permits programming temperature cycles.
The controller offers 25 program memory positions with 100 program sections each. The total number of
program sections of all programs is limited to 500.
Programming can be done directly through the keypad of the controller or graphically through the software
APT-COM™ 3 DataControlSystem (option, chap. 14.1) specially developed by BINDER.
5.3 Behavior after power failure
After the power returns, the unit continues to function in the original operating mode it was in previously
before an actual power failure had occurred. In Manual Mode (HAND), the controller regulates the tem-
perature to the last entered set-points, while in Program Mode (AUTO) it regulates the temperature to its
set-point that were reached during the program operation. The power failure is noted in the event list
(chap. 6.2) however, no error message is displayed indicating that a power failure has taken place.
5.4 Performance when opening the door
When you open the door, temperature control (heating and refrigeration) immediately stops (the compres-
sor continues running for 5 minutes without cooling). The fan is off.
5.5 Turning on the unit
Put the main power switch (2) in position I. The pilot lamp shows the unit being ready for operation.
Observe a delay time of approx. 30s between turning Off and again On. Otherwise an initializa-
tion problem may occur (display showing e.g. “–1999”).
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 unit by pressing any button. When turned on, the unit functions in the operat-
ing mode entered before turning off. In Manual Mode (HAND), the controller regulates the temperature to
the last entered set-point, and in Program Mode (AUTO) it regulates the temperature to the set-points
reached during previous program operation.
