Strona 10 z 27
If this function has been activated, after pressing the button , the display will show the time
to start the cooling process.In order to more accurately distinguish the displayed time, this
signaling is additionally underlined by blinking alternately dots at the display.
At any time, by pressing the button
again you can interrupt the countdown of time, and thus
go to the cooling process.
3.4.4. The supervisory of the chiller (unit) operation.
The controller is equipped with compressor safety functions, such as:
• CF – minimum standstill time of the chiller (unit),
• CA – minimum operating time of the chiller (unit),
• CC – maximum operating time of the chiller (unit).
Setting these parameters can also affect on the actual temperature fluctuations in the cooling
chamber. For example, if the compressor has a minimum operating time of 5 min. and
the control temperature has been reached after 3 min., the compressor will not be switched off
earlier than after 5 min. The same applies to the minimum standstill time of the unit. In this case,
the temperature fluctuations in the cooling chamber will be higher than it would appear from
the set hysteresis (parameter HI).
3.4.5. Automatic operation of the stirrer.
Automatic stirrer operation can take place in two options, depending on the settings made:
• F0=0 – cyclical operation of the stirrer, independent of the operation of the chiller
(unit),
• F0=1 – continuous operation of the stirrer during operation of the chiller (unit) and
cyclic operation during the chiller (unit) standstill.
The cyclic operation of the stirrer takes place as follows: work – standstill – work – ..., always
starting from work.
The operation time of the stirrer is determined by E1, and its standstill time is determined by E2.
3.4.6. Manual operation of the stirrer.
In addition to the automatic operation of the stirrer, the controller allows you to manually switch
on the stirrer at any time (when the stirrer is not working). Depending on the settings made in
the CP parameter, you can set two variants of manual operation:
• CP=0 – continuous stirrer operation from the moment of manual activation until
the manual switch-off,
• CP>0 – work for a specified period of time; the value of the CP parameter (>0) means
the operation time of the stirrer activated manually; the stirrer operation in this
variant can also be interrupted at any time by pressing the button .
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