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first time, the controller will prompt the user to set the RTC as it will
automatically select and display the clock calendar menu.
b.
Setting RTC parameters is performed using a clock calendar menu
that is similar to
the preset menu:
i.
Depress the
Down Arrow
and the
Select
keys simultaneously.
ii.
The text “Cloc” & “CLdr” will be momentarily displayed,
followed by the first clock /calendar parameter, time in hours:
minutes format.
iii.
Advancing to the next RTC parameter is performed using the
Up Arrow
key. Depressing the
Down Arrow
key will show the
previous parameter, and so on.
Note:
Upon powering up the controller for the first time, the clock
calendar menu will be selected automatically to prompt the user to set
the RTC.
c.
Changing an RTC parameter is performed as follows:
i.
While in the RTC menu, select the particular parameter to set
as described above.
ii.
Depress the
Select
key and using the
Up
and
Down Arrow
keys, change the value. Depressing and holding either the
Up
or
Down Arrow
key will cause the particular setting to increment or
decrement in value at a faster rate.
iii.
Depress the
Select
key to save the preset.
iv.
Repeat step “i” through “iii” above to modify other RTC
settings.
v.
Depress the
Stop
key to exit the preset menu.
vi.
Note: After approximately one minute of keypad inactivity,
the
Clock/Calendar Menu
will automatically be exited.
9.
Alarms
a.
Door Ajar:
If the door on the chiller unit has been left open for 60
seconds or more, an alarm will sound and the segmented display will
show the text “door,” “AJAr” in an alternating fashion. During this
alarm condition, the compressor solenoid and fan will also be
deactivated. This alarm sound and display sequence will continue until
such time the door switch is in the “closed” state by completely closing
the door thus allowing the chiller to resume normal operation.
b.
Probe Sensor Failure:
If either the Air temperature or Defrost
temperature probes were to fail, the alarm will sound to prompt the user
to take immediate action. The display will indicate the offending probe
as “Air” or “Def” alternating with “Prb.”
Note:
If all alarms were to
occur simultaneously, the display message priority is handled in the
following order: Air Probe, Defrost Probe and Door Ajar.
10.
Print/Log History
a
. The BC Controller is capable of logging chiller environmental
parameters for tracking food product chill performance and safety
monitoring purposes. All chill data is time stamped according to the
RTC settings and stored into nonvolatile data memory for subsequent
retrieval via printer or USB flash drive.
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