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XCell™ C410:V3 Controller
User Guide
31 repligen.com UG-C410v3-06
3.5
Weight Trend
Available in the Trending screen
During the XCell ATF® Device cycle, the weight of the filtration assembly changes in response to the
liquid flow to and from diaphragm pump. The weight profile is directly proportional to the position
of the diaphragm within the diaphragm pump, (or to how much liquid is in the diaphragm pump).
This provides useful real time information on the position of the diaphragm within the diaphragm
pump.
That information may be used to:
Monitor if the diaphragm cycles its full stroke.
Display the position of the diaphragm in the diaphragm pump.
While the PLC records the output from the load cell in milliseconds, the computer HMI is much
slower and refresh rate is about once every 0.5 - 1.0 second; therefore, while one may not observe
the details of the pump cycle on the HMI, (typically, between 4 - 10 seconds/half cycle), the PLC will
continue to monitor the rapid weight change.
3.6
Alarms
Figure 16. Alarm screen
The operator can view XCell™ C410:V3 Controller warnings and alarm conditions. All
Warnings/Alarms are displayed with Time/Date stamping and full description of condition. Both
Warnings/Alarms will activate the audible horn located inside XCell™ C410:V3 Controller cabinet. An
Alarm condition will automatically stop the pump cycling action, while a Warning condition allows
the pumping cycling action to continue. Warning and Alarm conditions are described in the following
section.