FRICK
QUANTUM™ COMPRESSOR CONTROL PANEL S90-010 O
OPERATION Page 87
HISTORY TRENDING
History trending saves 2000 recordings of the data items
from the Operating Status screen. History data is stored
in Flash memory. Flash memory is non-volatile and all
information is retained even if the power to the panel is
lost. The frequency at which the data is saved can be
selected.
The following setpoint is provided:
History recording interval – The time interval in
minutes that defines how often the trending data
values are recorded. The time interval ranges from 1
minute up to 60 minutes.
The following screen command keys are provided:
[Data Log View] – Accesses the History Trending
screen for viewing the data in a tabular format.
[Trending View] – Accesses the History Trending
screen for viewing the data in a graphical format.
[Operating Status View] – Accesses the History
Trending screen for viewing the data as it was on the
Operating Status screen format.
The History Trending data is viewed the same as the Real
Time Trending data except that only 2000 records are
saved and at a minimum time interval of every 1 minute.
Reference the Real Time Trending screens for a
description of the Trending screens.
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